SEARCH
Search Details
TANAKA Norio
| Environmental Science and Civil Engineering Division | Professor |
| Department of Civil and Environmental Engineering |
- Home Page:
Researcher information
■ Degree■ Field Of Study
- Social infrastructure (civil Engineering, architecture, disaster prevention), Civil engineering (environmental systems)
- Social infrastructure (civil Engineering, architecture, disaster prevention), Hydroengineering
- Apr. 2007 - Present, Saitama University, Graduate School of Science and Engineering
- Apr. 2004 - Mar. 2007, Saitama University, Graduate School of Science and Engineering
- Apr. 2002 - Mar. 2007, ,-
- Apr. 2002 - Mar. 2004
- Apr. 2000 - Mar. 2002
- Apr. 2000 - Mar. 2002, ,-
- 1991, The University of Tokyo, Japan
- 1991, University of Tokyo, -, -, Japan
- 1988, The University of Tokyo, Japan
- 1988, University of Tokyo, -, -, Japan
- 1986, The University of Tokyo, The Faculty of Engineering, Japan
- 1986, University of Tokyo, -, -, Japan
■ Award
- Sep. 2018, Best paper award of ISE2018, The effect of a hybrid defense system by a forest and/or moat against a tsunami run-up along a river, 21st International Symposium of International Association for Hydro-environment Engineering and Research(IAHR)
Igarashi, Y;Tanaka, N - Aug. 2018, 優秀成果賞
- Jul. 2017, 優秀成果賞
- 2017, Outstanding Contribution in Reviewing, International Journal of Disaster Risk Reduction
TANAKA Norio - 2009, 第11回サマーシンポジウム 優秀発表賞
Japan - 2009, -
- 2007, 第9回サマーシンポジウム 優秀発表賞
Japan - 2007, -
- 2006, 第８回サマーシンポジウム 優秀発表賞
Japan - 2006, -
- 2005, 第7回サマーシンポジウム 優秀発表賞
Japan - 2005, 土木学会論文賞
Japan - 2005, -
- 2002, 第4回サマーシンポジウム 優秀発表賞
Japan - 2002, -
Performance information
■ Paper- Overfalling impinging jet flow dynamics within scoured holes downstream of a levee,
Javedullah H. S.; Tanaka N.; Yoshikawa M.
Environmental Fluid Mechanics, 2025 (In Press), Mar. 2025, [Reviewed]
English, Scientific journal - Effects of Soil Characteristics on Levee Erosion and the Behavior of Twin Eddies in a Scoured Hole Generated by Nappe Flow
Javedullah Hemat Sherzai; Norio Tanaka; Yoshiya Igarashi; Ryota Onose
International Journal of Civil Engineering, Mar. 2025, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1007/s40999-025-01089-x(0123456789().,-volV)(0123456789().,-
DOI ID：10.1007/s40999-025-01089-x(0123456789().,-volV)(0123456789().,- - 津波遡上に対するハイブリッド減災構造物からの強化された迂回流緩和対策に関する数値解析
倉ヶ崎航; 五十嵐善哉; 田中規夫
Mar. 2025, [Corresponding]
Japanese, Scientific journal - 大地震による地殻上下変動が金目川水系の氾濫特性に与える影響に関する数値解析的研究
渡辺翔琉; 田中規夫; 五十嵐善哉
Mar. 2025, [Corresponding]
Japanese, Scientific journal - 地震時の斜面崩壊に起因する河道閉塞リスクの確率的予測手法の構築
小田竜生; 田中規夫; 五十嵐善哉
Mar. 2025, [Corresponding]
Japanese, Scientific journal - 複層構造基礎地盤におけるパイピング現象の堤防法尻長手方向での時間変動特性
真中蒼惟; 我妻大誠; 真中蒼惟; 田中規夫; 五十嵐善哉
Mar. 2025, [Corresponding]
Japanese, Scientific journal - Modelling of Bottom Shear Stresses in Scoured Hole Formed by Nappe Flow During Levee Overtopping
Yoshiya Igarashi; Norio Tanaka
GeoHazards 2025, Volume：6, Number：1, First page：1, Last page：16, Mar. 2025, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.3390/geohazards6010011
DOI ID：10.3390/geohazards6010011 - 全国一級水系を対象にした霞堤構造の分類と 数値解析に基づく洪水調節機能評価と 機能増進に関する考察
石原 慎也; 田中 規夫; 五十嵐 善哉
Volume：81, Number：16, First page：1, Last page：7, Feb. 2025, [Reviewed]
Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejj.24-16021
DOI ID：10.2208/jscejj.24-16021 - 浸水情報による目的地の変更を考慮した避難解析手法の構築と洪水時の安全避難に関する検討
藤野 晃慈; 五十嵐 善哉; 田中 規夫; 小内 尭
Volume：81, Number：16, First page：1, Last page：7, Feb. 2025, [Reviewed]
Japanese, Scientific journal
DOI：https://doi.org/10.11532/river.30.0_323
DOI ID：10.11532/river.30.0_323 - Effect of U-Type Floating Debris Accumulation at Sacrificial Piles on a Local Scour at Bridge Piers
Subodh Guragain; Norio Tanaka
International Journal of Civil Engineering, Feb. 2025, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1007/s40999-025-01081-5(0123456789().,-volV)(0123456789,-().volV)
DOI ID：10.1007/s40999-025-01081-5(0123456789().,-volV)(0123456789,-().volV) - Hydrodynamic Characteristics and Energy Reduction of Different Types of Layered Vegetation against Overtopped Tsunami from a Coastal Embankment
Rashedunnabi AHM; Tanaka N.
23rd International Mathematics Conference, Feb. 2025
English, Scientific journal - A study on the flow behavior & erosion analysis over a laterally uniform turf patches of a finite streamwise lengths with gaps on a levee slope
Jahan M.; Tanaka N.; Igarashi Y.
, 10th International Conference on Water and Flood Management-ICWFM 2025, Dhaka, Bangladesh., First page：22, Last page：24, Feb. 2025
English, Scientific journal - 複層構造基礎地盤におけるパイピング現象の平面的な進行と地盤内の流動状況の解明
我妻大誠; 真中蒼惟; 田中規夫; 五十嵐善哉
First page：17, Last page：20, Jan. 2025, [Corresponding]
Japanese, Scientific journal - Transformations in Flow Characteristics and Fluid Force Reduction with Respect to the Vegetation Type and Its Installation Position Downstream of an Embankment
A H M Rashedunnabi; Norio Tanaka; Md Abedur Rahman
Fluids 2025, Volume：10, Number：16, First page：1, Last page：23, Jan. 2025, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.3390/fluids10010016
DOI ID：10.3390/fluids10010016 - Optimizing coastal forest arrangements for tsunami flow dynamics
Anjum N.; Iqbal S.; Pasha GA; Tanaka N.; Ghani U.
Physics of Fluids, 2025 (In Press), 2025, [Reviewed]
English, Scientific journal - Investigation of energy loss, number and size of air bubbles generated due to nappe flow impinging into pooled water by varying the physical scale
Abbas; Tanaka Norio; Amina
Iranian Journal of Science and Technology (In Press), 2025, [Reviewed], [Corresponding]
English - Force reduction of tsunami-like waves on coastal structures by varying arrangements and densities of seaside vegetation: A physical model study
R.N. Udarika; Norio Tanaka
Ocean Engineering, Volume：318, Number：120103, First page：1, Last page：16, Dec. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1016/j.oceaneng.2024.120103
DOI ID：10.1016/j.oceaneng.2024.120103 - Estimation of average crown base height of Japanese black pine (Pinus thunbergii Parlat.) coastal forests related to tsunami damage
Hiroyuki Torita; Kazuhiko Masaka; Norio Tanaka; Yoshiya Igarashi; Kenta Iwasaki; Yasutaka Nakata
Journal of Coastal Conservation, Volume：28, Number：83, First page：1, Last page：9, Dec. 2024, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11852-024-01085-8
DOI ID：10.1007/s11852-024-01085-8 - Hazard assessment for future tsunami inundation partly sheltered by an installed finite hybrid defense system comprised of an embankment, moat, and coastal forest in Onbetsu, Japan
Norio Tanaka; Yoshiya Igarashi; Hiroyuki Torita; Ryuki Iwakura
Ocean Engineering, Nov. 2024, [Reviewed], [Lead]
English, Scientific journal
DOI：https://doi.org/10.1016/j.oceaneng.2024.119009
DOI ID：10.1016/j.oceaneng.2024.119009 - Effect of geometric arrangement of sacrificial piles on their efficiency of reducing local scouring at bridge piers
Guragain S.; Tanaka N.
Proc. of the 26th International Summer Symposium, Volume：CS2-26, Oct. 2024, [Corresponding]
English, Scientific journal - Effect of submergence of sacrificial piles on local scour reduction at a bridge pier under U-type debris jam conditions
Subodh Guragain; Norio Tanaka
Journal of Hydro-environment Research, Volume：2024, Number：57, First page：38, Last page：52, Oct. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1016/j.jher.2024.10.003
DOI ID：10.1016/j.jher.2024.10.003 - Analysis of hydrodynamic behavior in response to diverse pile arrangements adjacent to an impermeable dike
Sohail Iqbal; Norio Tanaka
Water Science, Volume：38, Number：1, First page：587, Last page：603, Oct. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1080/23570008.2024.2422254
DOI ID：10.1080/23570008.2024.2422254 - Fluid Force Reduction and Flow Structure at a Coastal Building with Different Outer Frame Openings Following Primary Defensive Alternatives: An Experiment-Based Review
Kannangara Dissanayakalage Charitha Rangana Dissanayaka; Norio Tanaka
geosciences, Volume：14, Number：287, First page：1, Last page：28, Oct. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.3390/geosciences14110287
DOI ID：10.3390/geosciences14110287 - Experimental Study on the Transport and Trapping of Floating Debris by Standing Trees during a Flood Event
Medori j; Tanaka N.; Igarashi Y.
IAHR-APD Congress, Oct. 2024
English, International conference proceedings - Experimental study on sediment deposition considering surface eddies and local separated flow structure around vegetation patches on sloping middle flood channel, Abstract Book,
Tanaka N.; Igarashi Y.; Hisazumi S.
IAHR-APD2024, Wuhan, China, 2024., Oct. 2024, [Lead]
English, Scientific journal - 地下茎を有する水際植生の洪水による流失可能性に関する実験的検討
五十嵐善哉; 田中規夫
First page：26, Last page：26, Sep. 2024
Japanese - 斜め切り下げの高水敷において低水路際植生が土砂堆積量に与える影響
久澄伸太郎; 田中 規夫; 五十嵐善哉; 中山尚; 松本敬之; 坂本雄司
First page：27, Last page：27, Sep. 2024
Japanese, Scientific journal - 高水敷の横断勾配と低水路際植生の密生度が水平渦の発生と高水敷への土砂堆積に与える影響
久澄 伸太郎, 田中 規夫, 五十嵐 善哉, Adiningrum Cita, Painda Fazalhaq,中山 尚, 松本 敬之, 坂本 雄司
Volume：2024, Number：3, First page：323, Last page：328, Sep. 2024, [Reviewed]
Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejj.23-00183
DOI ID：10.2208/jscejj.23-00183 - Experimental study on the flow characteristics over a laterally uniform turf patches of a finite streamwise lengths with gaps on a levee slope
Medori J.; Tanaka N.; Igarashi Y.
Proc. of the 26th International Summer Symposium, Volume：CS2-59, Sep. 2024, [Corresponding]
English, Scientific journal - Evaluating the Effectiveness of Seepage Countermeasures and Retrofitting Strategies for Mitigating Nappe Flow-Induced Reverse Flow and Erosion for Overtopping Flow from a Levee
Liaqat Ali; Kento Sekine; Norio Tanaka
geosciences, Volume：14, Number：233, First page：1, Last page：19, Aug. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.3390/geosciences14090233
DOI ID：10.3390/geosciences14090233 - 現況河道の状態把握を起点とした堤防の侵食・洗掘破堤危険度評価手法の実践的開発~ 2019 年 10 月洪水による千曲川での被災事例を検討対象として~
戸田祐嗣; 岩崎理樹; 溝口敦子; 磯部良太; 鈴木克尚; 坂野アイカ; 中島由似佳; 田中規夫; 藤田光一
Volume：80, Number：7, First page：1, Last page：20, Jul. 2024, [Reviewed]
Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejj.23-00183
DOI ID：10.2208/jscejj.23-00183 - Enhancing Levee Resilience Through Material Compatibility: A Comprehensive Study on Erosion Dynamics
Liaqat Ali; Norio Tanaka
Iranian Journal of Science and Technology, Transactions of Civil Engineering, Jul. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1007/s40996-024-01575-7
DOI ID：10.1007/s40996-024-01575-7 - Analysis of Hydraulic Jump and Energy Dissipation in Flow Through Emergent Vegetation Under Varying Froude Numbers
Nadir Murtaza; Ghufran Ahmed Pasha; Norio Tanaka; Usman Ghani; Naveed Anjum; Kashif Iqbal
Iranian Journal of Science and Technology, Transactions of Civil Engineering, Jul. 2024, [Reviewed]
English, Research society
DOI：https://doi.org/10.1007/s40996-024-01571-x
DOI ID：10.1007/s40996-024-01571-x - Numerical Modeling and Validation of Dike-Induced Water Flow Dynamics Using OpenFOAM,
Sohail Iqbala; K.D.C.R. Dissanayakaa; Norio Tanaka
ISH Journal of Hydraulic Engineering, Jul. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1080/09715010.2https://doi.org/10.1080/09715010.2024.2384514024.2384514
DOI ID：10.1080/09715010.2https://doi.org/10.1080/09715010.2024.2384514024.2384514 - Categorizing resident evacuation behaviors within a flood-protected area
Aki Onai; Norio Tanaka
Categorizing resident evacuation behaviors within a flood-protected area, Jun. 2024, [Reviewed], [Corresponding]
English, Doctoral thesis
DOI：https://doi.org/10.1080/15715124.2024.2365322
DOI ID：10.1080/15715124.2024.2365322 - Numerical modeling of flow dynamics around L‑shaped and T‑shaped dikes with varying geometric configurations and wing arrangements
Sohail Iqbal; Norio Tanaka
Modeling Earth Systems;Environmen, Jun. 2024, [Reviewed], [Corresponding]
English, Scientific journal
DOI：https://doi.org/10.1007/s40808-024-02105-0
DOI ID：10.1007/s40808-024-02105-0 - Effects of tree crown height on the flow hydrodynamics and tsunami energy reduction around the coastal forest
Naveed Anjum; Norio Tanaka
Landscape and Ecological Engineering, First page：495, Last page：511, Jun. 2024, [Reviewed], [Corresponding]
English, Doctoral thesis
DOI：https://doi.org/10.1007/s11355-024-00609-6
DOI ID：10.1007/s11355-024-00609-6 - Assessing the Impact of Debris Accumulation around varying configuration of Riparian Vegetation in Dike Breaching During Extreme Flooding Events
Amina; Tanaka N.; Abbas F.M.
10th International Symposium on Hydraulic Structures, Volume：374, Number：56, Jun. 2024, [Corresponding]
English, International conference proceedings
DOI：https://doi.org/10.3929/ethz-b-000676023
DOI ID：10.3929/ethz-b-000676023 - Assessment of the effect of thinning on the resistance of Pinus thunbergii Parlat. trees in mature coastal forests to tsunami fluid forces
Hiroyuki Torita; Kazuhiko Masaka; Norio Tanaka; Kenta Iwasaki; Satosi Hasui; Masato Hayamizu; Yasutaka Nakata
Journal of Environmental Management, Volume：284, First page：111969, Last page：111969, Apr. 2021, [Reviewed]
Elsevier BV, English, Scientific journal
DOI：https://doi.org/10.1016/j.jenvman.2021.111969
DOI ID：10.1016/j.jenvman.2021.111969, ISSN：0301-4797 - ANALYSIS AND COMPARISON AMONG CATCHMENT AREAS OF RAINFALL AND BASIN CHARACTERISTICS DOMINATING CONCENTRATION OF WATER LEVEL AND DISCHARGE PEAK TIME AT RIVER CONFLUENCE POINTS - FOCUSING ON THE IRUMA RIVER BASIN OF ARAKAWA WATER SYSTEM -
Hiroshi SUENAGA; Yuta Mizoguchi; Norio TANAKA; Kazuhiko IHARA; Kenta MATAYOSHI
Advances in River Engineering, Volume：25, First page：121, Last page：126, 2019
Scientific journal
DOI：https://doi.org/10.11532/river.25.0_121
DOI ID：10.11532/river.25.0_121 - OBSERVING RESPONSE OF Phragmites japonica TO FLOOD DISTURBANCES AND EXAMINING REPRODUCIBILITY OF ITS RESULT BY A VEGETATION DYNAMICS MODEL
Yuta MIZOGUCHI; Norio TANAKA
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), Volume：75, Number：2, First page：I_349, Last page：I_354, 2019
Japan Society of Civil Engineers, Scientific journal
DOI：https://doi.org/10.2208/jscejhe.75.2_i_349
DOI ID：10.2208/jscejhe.75.2_i_349, eISSN：2185-467X - Critical resistance affecting sub- to super-critical transition flow by vegetation
Pasha G.A; Tanaka N
J Earthquake and tsunami, Volume：13, Number：1, First page：1950004-1, Last page：1950004-17, 2019, [Reviewed]
English, Scientific journal - Simplified formulae for designing coastal forest against tsunami run-up: one-dimensional approach
Nguyen Ba Thuy; N. A.K. Nandasena; Vu Hai Dang; Norio Tanaka
Natural Hazards, Volume：92, Number：1, First page：327, Last page：346, May 2018, [Reviewed]
Springer Netherlands, English, Scientific journal
DOI：https://doi.org/10.1007/s11069-018-3197-z
DOI ID：10.1007/s11069-018-3197-z, ISSN：1573-0840, SCOPUS ID：85041542411 - Flume experiments on a flood guard moat, Kamaebori, around a protective mound and structure, Mizuka, in frequent flood occurrence area
Hasemi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：4, First page：1285, Last page：1290, 2018, [Reviewed]
Japanese, Scientific journal - Effects of existing second embankments constructed in Edo era on sensible flooding risk in the middle reach of the Arakawa River
Tanaka, N; Igarashi, Y; Fushimi K
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：4, First page：1393, Last page：1398, 2018, [Reviewed]
Japanese, Scientific journal - Experiments on the effectiveness of tsunami mitigation measure by multiple defense behind coastal vegetation
Zaha, T; Tanaka, N; Kimiwada, Y
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：4, First page：433, Last page：438, 2018, [Reviewed]
Japanese, Scientific journal - The effect of vegetation and moat along the river on the tsunami run-up along a river
Igarashi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：4, First page：445, Last page：450, 2018, [Reviewed]
Japanese, Scientific journal - Effects of sediment replenishment to grain-size refining and macroinvertebrates in the river bed downstream of a dam
Mizoguchi, Y; Tanaka, N; Takahashi, T
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：4, First page：595, Last page：600, 2018, [Reviewed]
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejhe.74.i_595
DOI ID：10.2208/jscejhe.74.i_595, eISSN：2185-467X - Effectiveness of a compound defense system of sea embankment and coastal forest against a tsunami
Igarashi, Y; Tanaka, N
Ocean Engineering, Number：151, First page：246, Last page：256, 2018, [Reviewed]
English, Scientific journal - Tsunami mitigation by combination of coastal vegetation and a backward-facing step
Pasha, G.A; Tanaka; N. Yagisawa, J; Achmad, F.N
Coastal Engineering Journal, 2018, [Reviewed]
English, Scientific journal - Experimental study on the energy reduction of a solitary wave using a sand dune-coastal lagoon system
Vinodh, T.L.C; Tanaka, N
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：5, First page：1231, Last page：1236, 2018, [Reviewed]
Japanese, Scientific journal - The change in the sensible flooding risk and escape timing in the Kawajima Town in middle reach of the Arakawa River Basin in relation to the rainfall patterns and breaching conditions
Fushimi K; Tanaka, N; Igarashi, Y
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：5, First page：1291, Last page：1296, 2018, [Reviewed]
Japanese, Scientific journal - Research on the hybrid method for tsunami-mitigation by adding an embankment and moat in front of the existing coastal forest
Kimiwada, Y; Tanaka, N; Sato, H; Zaha, T; Igarashi, Y
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：5, First page：1243, Last page：1248, 2018, [Reviewed]
Japanese, Scientific journal - Experimental study on the effect of anisotropy of porosity in a calculation grid on a flood inundation pattern
Onai A; Tanaka, N; Fushimi, K; Ikai S
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：5, First page：1537, Last page：1542, 2018, [Reviewed]
Japanese, Scientific journal - Influence of long-term sediment replenishment to algal biomass and community structure downstream of a dam
Mizoguchi, Y; Tanaka, N; Takahashi, T
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：5, First page：391, Last page：396, 2018, [Reviewed]
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejhe.74.5_i_391
DOI ID：10.2208/jscejhe.74.5_i_391, eISSN：2185-467X - A theoretical analysis of occurrence of hydraulic jump by double embankment system
Igarashi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers, Ser. B1(Hydraulic Engineering), Volume：74, Number：5, First page：1237, Last page：1242, 2018, [Reviewed]
Japanese, Scientific journal - The changes of tsunami mitigation and breaking rate of black-pine coastal forest At different growth stages under thinning management of trees
Igarashi, Y; Zaha, T; Tanaka, N; Sato, H; Torita, H
Journal of Japan Society of Civil Engineers, Volume：74, Number：2, First page：229, Last page：234, 2018, [Reviewed]
Japanese, Scientific journal - Evaluation of the resistance of coastal Pinus thunbergii Parlat. forests to the tsunami fluid force in Japan
Torita H; Tanaka N
Natural Hazards, Number：Published online, 2018, [Reviewed]
English, Scientific journal - Flume experiments on optimal arrangement of hybrid defense system comprising an embankment
Zaha T; Tanaka N; Kimiwada Y
Ocean Engineering, Volume：173, First page：45, Last page：57, 2018, [Reviewed]
English, Scientific journal - Effects of forest management on resistance against tsunamis in coastal forests
Torita H; Tanaka N; Masaka K; Iwasaki K
Ocean Engineering, Volume：169, First page：379, Last page：387, 2018, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.oceaneng.2018.09.013
DOI ID：10.1016/j.oceaneng.2018.09.013, ISSN：0029-8018, Web of Science ID：WOS:000449242100029 - Changes in flow structures and energy reduction through compound tsunami mitigation system with embankment and lined piles
Igarashi Y; Tanaka N; Zaha T
Volume：164, First page：722, Last page：732, 2018, [Reviewed]
English, Scientific journal - Effective tree distribution and stand structures in a forest for tsunami mitigation considering the different tree-breaking patterns of tree species
Tanaka N; Sato H; Igarashi Y; Kimiwada Y; Torita H
Journal of Environmental Management, Volume：223, First page：925, Last page：935, 2018, [Reviewed]
Elsevier BV, English, Scientific journal
DOI：https://doi.org/10.1016/j.jenvman.2018.07.006
DOI ID：10.1016/j.jenvman.2018.07.006, ISSN：0301-4797 - Coconut-Fibre Biofilm Wastewater Treatment System in Sri Lanka: Microcosm Experiments for Evaluating Wastewater Treatment Efficiencies and Oxygen Consumption
Sato N; Saito T; Satoh H; Tanaka N; Kawamoto K
International Journal of Environmental Science and Development, Volume：8, Number：10, First page：691, Last page：695, Oct. 2017, [Reviewed]
EJournal Publishing, English, Scientific journal
DOI：https://doi.org/10.18178/ijesd.2017.8.10.1040
DOI ID：10.18178/ijesd.2017.8.10.1040, eISSN：2010-0264 - Undular hydraulic jump formation and energy loss in a flow through emergent vegetation of varying thickness and density
Ghufran Ahmed Pasha; Norio Tanaka
OCEAN ENGINEERING, Volume：141, Number：141, First page：308, Last page：325, Sep. 2017, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.oceaneng.2017.06.049
DOI ID：10.1016/j.oceaneng.2017.06.049, ISSN：0029-8018, Web of Science ID：WOS:000407535100027 - Microcosm experiments on a coconut-fibre biofilm treatment system to evaluatewaste water treatment efficiencies
Naofumi Sato; W. N.K. Dharmarathne; Takeshi Saito; Hiroyasu Sato; Norio Tanaka; Ken Kawamoto
International Journal of GEOMATE, Volume：12, Number：33, First page：160, Last page：166, May 2017, [Reviewed]
GEOMATE International Society, English, Scientific journal
DOI：https://doi.org/10.21660/2017.33.2754
Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85018239515&origin=inward
Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85018239515&origin=inward
DOI ID：10.21660/2017.33.2754, ISSN：2186-2982, SCOPUS ID：85018239515 - Effect of periphyton growth on the momentum exchange in between roughness layer and upper layer and bed shear stress on armored bed
Hasemi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：73, Number：4, First page：1189, Last page：1194, Mar. 2017, [Reviewed]
Japanese, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40021164344, CiNii Books ID：AN10426673 - Comparison of reduction of tsunami fluid force and additional force due to impact and accumulating after collision of tsunami-produced driftwood from a coastal forest with houses during the Great East Japan tsunami
Tanaka, N; Ogino, T
Landscape and Ecological Engineering, Mar. 2017, [Reviewed]
English, Scientific journal - Numerical study on optimum route of evacuation assistance bus based on flood inundation model for for Kawajima Town
Yagisawa, J; Okubo, K; Tanaka, N; Akasaki, Y; Nara,Y
Journal of Japan Society of Civil Engineers, Volume：73, Number：4, First page：313, Last page：318, 2017, [Reviewed]
Japanese, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40021162462, CiNii Books ID：AN10426673 - Flume study on the impact of steps located in a steep channel on the driftwood accumulation in front of bridge girder
Miyahara, K; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：73, Number：4, First page：1291, Last page：1296, 2017, [Reviewed]
Japanese, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40021164516, CiNii Books ID：AN10426673 - Evaluation on the bottom shear force in streamwise canyon in an armored bed actually related to the movement of the sand
Sakata, R; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：73, Number：4, First page：787, Last page：792, 2017, [Reviewed]
Japanese, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40021163484, CiNii Books ID：AN10426673 - Evaluation of energy reduction by the double embankment system on the change of flow structure after the overtopping of level 2 tsunami from sea embankment
Igarashi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：73, Number：4, First page：1009, Last page：1014, 2017, [Reviewed]
Japanese, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40021163864, CiNii Books ID：AN10426673 - Mitigation of destructive fluid force on buildings due to trapping of floating debris by coastal forest during the Great East Japan tsunami
Norio Tanaka; Aki Onai
LANDSCAPE AND ECOLOGICAL ENGINEERING, Volume：13, Number：1, First page：131, Last page：144, Jan. 2017, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11355-016-0308-4
DOI ID：10.1007/s11355-016-0308-4, ISSN：1860-1871, eISSN：1860-188X, Web of Science ID：WOS:000391940700012 - Science and engineering of forest: Evaluation of the function, control and utilization
Asaeda, T; Tanaka, N
Advances in River Engineering, Volume：23, First page：555, Last page：560, 2017, [Reviewed]
Japanese, Scientific journal - Role of boundary layer hydraulics on the preservation of instream ecology
Tanaka, N; Utida, T; Sanjo, M
Advances in River Engineering, Volume：23, First page：549, Last page：554, 2017, [Reviewed]
Japanese, Scientific journal - Effectiveness of Finite Length Inland Forest in Trapping Tsunami-Borne Wood Debris
Ghufran Ahmed Pasha; Norio Tanaka
JOURNAL OF EARTHQUAKE AND TSUNAMI, Volume：10, Number：4, Oct. 2016, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1142/S1793431116500081
DOI ID：10.1142/S1793431116500081, ISSN：1793-4311, eISSN：1793-7116, Web of Science ID：WOS:000387688800005 - Three dimensional downstream scour analysis after levee overtopping
Sazia, A; Yagisawa, J; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：72, Number：4, First page：823, Last page：828, 2016, [Reviewed]
English, Scientific journal - Turbulence characteristics in open channel gravel bed with small water depth relative to roughness elements height,
Habib, S; Tanaka, N; Yoshizawa, Y
Journal of Japan Society of Civil Engineers, Volume：72, Number：4, First page：511, Last page：516, 2016, [Reviewed]
English, Scientific journal - Change of overtopping tsunami flow rate from embankment with the arrangement of the embankment and coastal forest
Igarashi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers,, Volume：72, Number：4, First page：397, Last page：402, 2016, [Reviewed]
Japanese, Scientific journal - Suitable structure behind sea embankment for energy dissipation to the overtopping flow of level-2 tsunami
Igarashi, Z; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：71, Number：2, First page：325, Last page：330, 2016, [Reviewed]
The Great East Japan tsunami has revealed the limit of hard solution by only sea embankment. So the tsunami mitigation for level-2 tsunami with which recurrent cycle is around several hundreds to one thousand is discussed, by multiple defense system, not only using a sea embankment but by many hard and soft solutions. So the objective of this study is to clarify the effectiveness of inland embankment together with coastal forest for dissipating tsunami energy by a flume test. Optimal arrangement and height of inland embankment is tested in comparison with one embankment system. New index is proposed to classify the flow structure around the embankment using tsunami momentum and storage capacity in between the embankments. The second embankment height is better to be smaller within when the hydraulic jump occurs, but the oscillation of water depth decreases the energy dissipation effect. For optimal design of the two embankment system, the range of the index has been discussed for escaping the generation of oscillation of water depth at the top of second embankment.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/kaigan.71.I_325
DOI ID：10.2208/kaigan.71.I_325, ISSN：1884-2399, CiNii Articles ID：130005109302 - Mud Crab (Scylla serrata) population changes in Koggala Lagoon, Sri Lanka since construction of the groyne system
G. P. Amarasekara; T. Priyadarshana; J. Manatunge; N. Tanaka; G. L. Gunaratne
AQUATIC ECOSYSTEM HEALTH & MANAGEMENT, Volume：19, Number：1, First page：83, Last page：91, Jan. 2016, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1080/14634988.2016.1139426
DOI ID：10.1080/14634988.2016.1139426, ISSN：1463-4988, eISSN：1539-4077, Web of Science ID：WOS:000373112700009 - Field observation and flume experiment on sand transportation at Namiita Coast
Yagisawa J; Takemura T; Ono S; Itabashi N; Shinojima K; Suzuki K; Tanaka N
Journal of Japan Society of Civil Engineers, Volume：72, Number：2, First page：187, Last page：192, 2016, [Reviewed]
For elucidating the sand movement characteristics at Namiita coast, in situ and flume experiments were conducted. Field experiments which used colored sand were conducted from Dec. 2014 to Feb. 2015 and from July - Oct. 2015. For both seasons, colored sand (d50=0.6 and 1.0mm) has been confirmed to move not only offing direction (within the shallow region from the critical water depth for the sediment movement) but also shore direction from the setting point. If similar material will be used for the beach nourishment, there is a possibility to contribute to the re-formation of sandy beach.
Flume experiments with considering different submarine topography (before and after 2011 Tsunami) and wave conditions were conducted. By using experimental results, change of submarine topography through the year was clarified. Even submarine topography after 2011 Tsunami, a tendency of sedimentation was confirmed to be maintained around beach line. These results suggest that sandy beach in Namiita coast might be reformed by conducting beach nourishment.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejoe.72.I_187
DOI ID：10.2208/jscejoe.72.I_187, CiNii Articles ID：130005263266 - Flume experiments for clarifying the effects of the thickness of seaside coastal forest and tree-overturning event on the overflow rate from embankment
Igarashi, Y; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：72, Number：2, First page：319, Last page：324, 2016, [Reviewed]
After the Great East Japan tsunami, the importance of a multiple defense system is increasing for Level-2 tsunami that combined coastal forest and sea embankment. This study is conducted to clarify the change of flow pattern and overflow volume from embankment with tree overturning and thickness of coastal forest using a flume with sudden opening gate. When the trees are not overturned and the thickness of seaside forest is thin (2 rows), the flow pattern change in front of embankment increases the total reflection and decreases the overflow volume around 10-20%, although the forest itself does not increase the reflection. This case's the ratio of reduction in overflow volume for one row is 3-4 times as large as the case that thickness of seaside forest is thick (40rows). When the trees are overturned and the thickness of seaside forest is thin (2rows), the overflow volume doesn't decrease in some cases. However, if the flow pattern change occurs between seaside forest and embankment, the overflow volume decreases around 20% even when the trees are overturned. If the thin forest model (2rows) was endured for the first attack but overturn before the reflection from embankment arrived, the ratio of reduction in overflow volume increases.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/kaigan.72.I_319
DOI ID：10.2208/kaigan.72.I_319, CiNii Articles ID：130005282389 - 複数津波の来襲により生じた青森県三沢の海岸林破壊現象の検証
Tanaka, N; Sato, H; Akasaki, Y; Torita, H; Odashima, R
Validation for the modeling of destruction phenomena of the coastal forest at Misawa in Aomori Prefecture where multiple inundation of tsunami occurred, Volume：72, Number：2, First page：313, Last page：318, 2016, [Reviewed]
Destruction situation of coastal forest revealed by the post tsunami survey of the 2011 Great East Japan tsunami has been reproduced by two-dimensional depth averaged long-wave model and the estimation method of the tree destruction for the management of coastal forest is validated. The effect of several-time attacks on the destruction was also discussed especially paid attention on the reduction of critical overturning moment. Previous model is underestimated the tree destruction and the accuracy is improved by decreasing the threshold by 70% value. In addition, some trees overturned was hypothesized to increase to fall the neighboring trees down. Considering the small tree of which crown height is standard-deviation smaller from average, the reproduction of the simulated tree destruction has also been improved. For the management of coastal forest, these two effects is important to be included.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/kaigan.72.I_313
DOI ID：10.2208/kaigan.72.I_313, CiNii Articles ID：130005282399 - The characteristics of levee-breach phenomena and scoured Region of the Kinugawa river and some branches of Tonegawa rivers at Kanto & Tohoku heavy rain in September 2015
Tanaka, N; Yagisawa, J; Igarashi, Y; Yamagishi, G
Advances in River Engineering, JSCE, Volume：22, First page：333, Last page：338, 2016, [Reviewed]
Japanese, Scientific journal - Effect of submergence condition and overtopping depth on gully scour dimensions: Observations from the 2011 Great East Japan Tsunami
Afreen, S; Yagisawa, J; Tanaka, N
Journal of Earthquake and Tsunami, Volume：11, Number：2, 2016, [Reviewed]
English, Scientific journal - Scoured depth and length of pools and ditches generated by overtopping flow from embankments during the 2011 Great East Japan Tsunami
Tanaka, N; Sato, M
Ocean Engineering, Number：109, First page：72, Last page：82, Aug. 2015, [Reviewed], [Lead]
English, Scientific journal - Method how to measure the bed material size distribution in relation to the invertebrate dynamics in armored gravel bed downstream of a dam
TANAKA Norio
Journal of Japan Society of Civil Engineers, Volume：71, Number：4, First page：1159, Last page：1164, Mar. 2015, [Reviewed]
Importance of small-size material on invertebrate dynamics has been pointed out in previous studies. For clarifying the reference diameter that greatly affects the dynamics, invertebrate was sampled on the downstream riffle of Futase Dam. The average body length of the 4 invertebrates are around 4-14mm and related small particle size are supposed around 1.4-4.1 mm. Five methods for sampling large and small gravel-sand particles were tested. Image analysis that represents macro roughness has a possibility not to count small size particles. Combined method that uses appropriate methods for macro and micro roughness has been proposed. The method can represent the small size particle which is related to the drift phenomenon of invertebrates.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejhe.71.I_1159
DOI ID：10.2208/jscejhe.71.I_1159, ISSN：2185-467X, CiNii Articles ID：130005123491, CiNii Books ID：AN10426673 - Numerical analysis considering the effect of trapping the floatage by coastal forests and fragility curve by houses
Onai, A; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：71, Number：4, First page：727, Last page：732, Mar. 2015, [Reviewed]
To estimate the fragility of wooden buildings (houses) in relation to the tsunami water depth and hydrodynamic force during the 2011 Great East Japan tsunami, a numerical simulation was conducted in two different regions using a nonlinear long wave equation model that includes the breaking or washout condition of trees and houses, and trapping function of driftwood by coastal forest. Fragility curves as a function of water depth, fluid force and moment by fluid force were analyzed for different level of house damages. Some differences exist especially for the fragility curve of washing out houses, but the curve has been improved by considering the trapping effect by trees, and become similar to that in the region where coastal forest was thin and breaching of embankment was not occurred.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/jscejhe.71.I_727
DOI ID：10.2208/jscejhe.71.I_727, ISSN：2185-467X, CiNii Articles ID：130005123549, CiNii Books ID：AA12199490 - Simulation about effect of forest to reduce Tsunami considering tree damage
Sato Hajime; Tanaka Norio; Noguchi Hironori; Torita Hiroyuki; Masaka Kasuhiko; Abe Tomoyuki; Iwasaki Kenta
The Japanese Forest Society Congress, Volume：126, Number：0, First page：468, Last page：468, 2015, [Reviewed]
[in Japanese]
THE JAPANESE FORESTRY SOCIETY, Japanese
DOI：https://doi.org/10.11519/jfsc.126.0_468
DOI ID：10.11519/jfsc.126.0_468, CiNii Articles ID：130005490903 - Geometrical characteristic of scour holes caused by overtopping flow of embankment covered with different lengths of protection works
Binh, D.V; Yagisawa, J; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：71, Number：4, First page：163, Last page：168, 2015, [Reviewed]
English, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40020430750 - Investigation of scour pattern downstream of levee toe due to overtopping flow
Sazia,A; Yagisawa, J; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：71, Number：4, First page：175, Last page：180, 2015, [Reviewed]
Japanese, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40020430800 - The optimal porosity of stream-wise groins for wave attenuation under different cross slope conditions
Trung, L.V; Yagisawa, J; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：71, Number：4, First page：13, Last page：18, 2015, [Reviewed]
English, Scientific journal
ISSN：1880-8751, CiNii Articles ID：40020429637 - Fragility curve of different damage of wooden building due to tsunami based on tsunami fluid force and its moment
TANAKA Norio
Journal of Japan Society of Civil Engineers, Volume：71, Number：1, First page：1, Last page：11, 2015, [Reviewed]
To estimate the fragility of wooden buildings (houses) in relation to the tsunami water depth and hydrodynamic force during the 2011 Great East Japan tsunami, a numerical simulation was conducted in three different regions using a nonlinear long wave equation model that includes the breaking or washout condition of trees and houses. Fragility curves as a function of water depth, fluid force (FF) and moment by fluid force (MF) were analyzed for different level of house damages. Some differences exist especially for the fragility curve of washing out houses, but the curve where coastal forest was thin and breaching of embankment was not occurred can be utilized because of the high accuracy of the washout situation of houses in numerical simulation. The differences in place were small in case of a collapsed or major/moderate damage level for FF and MF. Although the simulation includes the washout condition defined by the critical moment index, the applicability of FF was better than MF for high Froude numbers near the coast. The efficacy of selecting the smaller curve was proposed within two water depth curves for 50% collapsed or major/moderate damage level based on Froude numbers.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/kaigan.71.1
DOI ID：10.2208/kaigan.71.1, ISSN：1884-2399, CiNii Articles ID：130004956748 - High-precision tsunami simulation method considering the difference in breaking and overtopping phenomenon by stand structure of coastal trees applicable to coastal forest management
Tanaka, N; Niwata, Y; Sato, S; Torita, H; Noguchi, H
Journal of Japan Society of Civil Engineers, Volume：71, Number：2, First page：307, Last page：312, 2015, [Reviewed]
Coastal forest is recently expected to dissipate tsunami energy by combining with an artificial embankment. When a large tsunami attacks coastal forests, almost all forests are broken or overturned. So it's important to reproduce numerically the breaking situation of forests. The objective of this study is to improve two-dimensional nonlinear longwave equation model including the tree break in detail, to demonstrate the energy dissipation effect when forest is broken, and to clarify the breaking phenomena in relation to the stand structure of trees. Numerical simulation demonstrates that a tree of which crown is high from ground tends to be broken at the tree trunk when root anchoring strength is low. In comparison with overturning phenomenon, the tree trunk breaking is occurred in case of relatively small Froude number and in the forest with artificial embankment and pool. In addition, even when the trees with dense crown are broken, they contribute to resist tsunami to some extent. Coastal forest with artificial embankment and pool is evaluated to have large tsunami dissipation effect in the study area.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/kaigan.71.I_307
DOI ID：10.2208/kaigan.71.I_307, ISSN：1884-2399, CiNii Articles ID：130005109299 - Stochastic analysis of forestation on excavated gravel bar by growth dynamic model
Yagisawa, J; Tanaka, N
Advances in River Engineering, Volume：21, Number：17, First page：319, Last page：324, 2015, [Reviewed]
Japanese, Scientific journal - Field study on planted forest structures and their role in protecting communities against tsunamis: experiences along the coast of the Biobío Region
Rodríguez, R; Encina, P; Espinosa, M; Tanaka, N
Chile. Landscape and Ecol. Engineering, Jan. 2015, [Reviewed]
English, Scientific journal - Reprint of "Boulder transport by the 2011 Great East Japan tsunami: Comprehensive field observations and whither model predictions?"
N. A.K. Nandasena; Norio Tanaka; Yasushi Sasaki; Masahiko Osada
Marine Geology, Volume：358, First page：49, Last page：66, Dec. 2014, [Reviewed]
Elsevier, English, Scientific journal
DOI：https://doi.org/10.1016/j.margeo.2014.10.003
DOI ID：10.1016/j.margeo.2014.10.003, ISSN：0025-3227, SCOPUS ID：84914147553 - Combined effects of coastal forest and sea embankment on reducing the washout region of houses in the Great East Japan tsunami
Norio Tanaka; Satoshi Yasuda; Kosuke Iimura; Junji Yagisawa
JOURNAL OF HYDRO-ENVIRONMENT RESEARCH, Volume：8, Number：3, First page：270, Last page：280, Aug. 2014, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.jher.2013.10.001
DOI ID：10.1016/j.jher.2013.10.001, ISSN：1570-6443, eISSN：1876-4444, Web of Science ID：WOS:000345488000010 - Maximum sand sedimentation distance after backwash current of tsunami - Simple inverse model and laboratory experiments
Eiichi Furusato; Norio Tanaka
MARINE GEOLOGY, Volume：353, Number：353, First page：128, Last page：139, Jul. 2014, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.margeo.2014.04.006
DOI ID：10.1016/j.margeo.2014.04.006, ISSN：0025-3227, eISSN：1872-6151, Web of Science ID：WOS:000337857900009 - Annual changes in community dynamics of invertebrate in gravel bed river downstream of a dam and the change in movability of bed material in low flow channel after artificial sand supply
Tanaka, N; Furusato, E
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), Volume：70, Number：4, First page：1327, Last page：1332, Mar. 2014, [Reviewed]
Japanese, Scientific journal
ISSN：2185-467X, J-Global ID：201502242391132510 - Microhabitat characteristics behind large bed material and macroinvertebrate dynamics – Separation and hydraulic jump type habitat-
Furusato, E; Tanaka, N
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), Volume：70, Number：4, First page：1333, Last page：1338, Mar. 2014, [Reviewed]
Japanese, Scientific journal
ISSN：2185-467X, J-Global ID：201502258645438635 - Dynamic growth model of river vegetation considering the change of vegetation succession speed due to deposition of fine sand, Journal of Japan Society of Civil Engineers
Yagisawa, J; Tanaka, N
Journal of Japan Society of Civil Engineers, Volume：70, Number：3, First page：71, Last page：81, 2014, [Reviewed]
Japanese, Scientific journal - Method for evaluating the forestation in river considering the characteristics of flood decline and geomorphology of gravel bars on the deposition of fine sand
Tanaka, N; Yagisawa, J; Otsuka, S
Journal of Japan Society of Civil Engineers, Volume：70, Number：3, First page：60, Last page：70, 2014, [Reviewed]
Japanese, Scientific journal - Flow in Roughness Layer and Dynamics of Invertebrate in Stream
Tanaka, N; Furusato, E
J. Japan Society of Fluid Mechanics, Volume：33, Number：33, First page：337, Last page：342, 2014, [Reviewed]
Japanese, Scientific journal
ISSN：0286-3154, J-Global ID：201402289368602304 - Novel classification system for stream invertebrate related to the response characteristics to physical disturbance
Furusato, E; Tanaka, N; Sakata, R
Advances in River Engineering, Volume：20, First page：151, Last page：156, 2014, [Reviewed]
Japanese, Scientific journal
J-Global ID：201602250337447203 - Current status and problems of eco-hydraulics for river managements –Toward regulation of intermediate disturbance –
Tanaka, N; Furusato, E
Advances in River Engineering, Volume：20, First page：145, Last page：150, 2014, [Reviewed]
Japanese, Scientific journal
J-Global ID：201602231179083122 - Mud crab (Scylla serrata) population changes in Koggala Lagoon, Sri Lanka since construction of the groyne system
G. P. Amarasekara; Tilak Priyadarshana; Jagath Manatunge; Norio Tanaka; Gayan L. Gunaratne
Aquatic Ecosystem Health and Management Society, 2014, [Reviewed]
English, Scientific journal - Field study on planted forests structures and their role in the protection against tsunamis: Experiences on the coastal border of Biobío Region, Chile
Rolando Rodríguez; Pamela Encina; Miguel Espinosa; Norio Tanaka
Landscape and Ecological Engineering, 2014, [Reviewed]
English, Scientific journal - Efficacy of Rhizophora apiculata and Nypa fruticans on attenuation of boat-generated waves under steep slope condition
Trung L.V; Yagisawa J; Tanaka N
International Journal of Ocean and Water Resources, Volume：19, Number：2, First page：1103, Last page：1114, 2014, [Reviewed]
English, Scientific journal - Boulder transport by the 2011 Great East Japan tsunami: Comprehensive field observations and whither model predictions?
N. A. K. Nandasena; Norio Tanaka; Yasushi Sasaki; Masahiko Osada
MARINE GEOLOGY, Volume：346, Number：346, First page：292, Last page：309, Dec. 2013, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.margeo.2013.09.015
DOI ID：10.1016/j.margeo.2013.09.015, ISSN：0025-3227, eISSN：1872-6151, Web of Science ID：WOS:000328869900023 - Effect of a combined position of coastal forest and embankment on the tree breakage and tsunami mitigation
Iimura, K; Tanaka, N; Ikeda, Y
Journal of Japan Society of Civil Engineers, Volume：69, Number：2, First page：401, Last page：405, Nov. 2013, [Reviewed]
Coastal forest in large areas of the Tohoku and Kanto districts of Japan were destroyed by the Great East Japan tsunami on 11 March 2011. However, coastal forest had some ability to reduce the damage by a tsunami even when they were broken. The objective of this study is to estimate the tsunami mitigation when coastal forest was perfectly or partly broken, under the condition at which coastal forest and embankment co-exist. The tsunami mitigation effect becomes most significant, and the tree breakage ratio becomes smallest, when the embankment is on the land side, since tsunami which reduced by the embankment hits coastal forest. On the other hand, if coastal forest is in the sea side of the embankment, the breakage ratio becomes large and the tsunami mitigation effect becomes small, since tsunami hits coastal forest directly.
Japan Society of Civil Engineers, Japanese, Scientific journal
DOI：https://doi.org/10.2208/kaigan.69.I_401
DOI ID：10.2208/kaigan.69.I_401, ISSN：1884-2399, CiNii Articles ID：130004551106 - DANGEROUS ZONE FORMATION BEHIND FINITE-LENGTH COASTAL FOREST FOR TSUNAMI MITIGATION
Kosuke Iimura; Norio Tanaka
JOURNAL OF EARTHQUAKE AND TSUNAMI, Volume：7, Number：4, First page：1350034, Last page：1350051, Nov. 2013, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1142/S1793431113500346
DOI ID：10.1142/S1793431113500346, ISSN：1793-4311, eISSN：1793-7116, Web of Science ID：WOS:000327671000006 - Dynamic growth model of river vegetation considering regeneration and expansion process of trees with changing magnitude of destruction
Yagisawa, J; Tanaka, N; Fukuoka S
Advances in River Engineering, JSCE, Volume：19, First page：393, Last page：398, Jun. 2013, [Reviewed]
Japanese, Scientific journal - Method for evaluating the re-forestation of excavated gravel bar considering deposition and washout of fine sand
Tanaka, N; Yagisawa, J; Otsuka, S; Hirono, F; Takeshima, M
Advances in River Engineering, JSCE, Volume：19, First page：387, Last page：392, Jun. 2013, [Reviewed]
Japanese, Scientific journal - Annual Changes in community dynamics of invertebrate in downstream riffle of Futase-dam and movability of bed material in low flow channel after artificial sand supply
Tanaka, N; Furusato, E; Kimura, K
Advances in River Engineering, JSCE, Volume：19, First page：483, Last page：488, Jun. 2013, [Reviewed]
Japanese, Scientific journal - Breaking pattern and critical breaking condition of Japanese pine trees on coastal sand dunes in huge tsunami caused by Great East Japan Earthquake
Norio Tanaka; Junji Yagisawa; Satoshi Yasuda
NATURAL HAZARDS, Volume：65, Number：1, First page：423, Last page：442, Jan. 2013, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11069-012-0373-4
DOI ID：10.1007/s11069-012-0373-4, ISSN：0921-030X, eISSN：1573-0840, Web of Science ID：WOS:000312087100025 - Effects of local scouring and saturation of soil due to flooding on maximum resistive bending moment for overturning Robinia pseudoacacia
M. B. Samarakoon; Norio Tanaka; Junji Yagisawa
LANDSCAPE AND ECOLOGICAL ENGINEERING, Volume：9, Number：1, First page：11, Last page：25, Jan. 2013, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11355-011-0169-9
DOI ID：10.1007/s11355-011-0169-9, ISSN：1860-1871, Web of Science ID：WOS:000313809900002 - Boulder transport by high energy: Numerical model-fitting experimental observations
N. A. K. Nandasena; Norio Tanaka
OCEAN ENGINEERING, Volume：57, First page：163, Last page：179, Jan. 2013, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.oceaneng.2012.09.012
DOI ID：10.1016/j.oceaneng.2012.09.012, ISSN：0029-8018, Web of Science ID：WOS:000314488200015 - Improvement of effectiveness of existing Casuarina equisetifolia forests in mitigating tsunami damage
M. B. Samarakoon; Norio Tanaka; Kosuke Iimura
JOURNAL OF ENVIRONMENTAL MANAGEMENT, Volume：114, First page：105, Last page：114, Jan. 2013, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.jenvman.2012.10.050
DOI ID：10.1016/j.jenvman.2012.10.050, ISSN：0301-4797, eISSN：1095-8630, Web of Science ID：WOS:000314371700011 - Comparison of the effects of coastal forest and those of sea embankment on reducing the washout region of houses in the tsunami caused by the Great East Japan Earthquake
Tanaka, N; Yasuda, S; Iimura, K; Yagisawa, J
Journal of Hydro-environmental Research, 2013, [Reviewed]
English, Scientific journal - Return period of flood disturbance that increases diversity on gravel bars in middle stream of rivers
Kasun De Silva; Norio Tanaka; Junji Yagisawa
Landscape and Ecological Engineering, Volume：11, Number：1, 2013, [Reviewed]
Springer Tokyo, English, Scientific journal
DOI：https://doi.org/10.1007/s11355-013-0229-4
DOI ID：10.1007/s11355-013-0229-4, ISSN：1860-188X, SCOPUS ID：84883454156 - Numerical simulation estimating effects of tree density distribution in coastal forest on tsunami mitigation
Kosuke Iimura; Norio Tanaka
OCEAN ENGINEERING, Volume：54, First page：223, Last page：232, Nov. 2012, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.oceaneng.2012.07.025
DOI ID：10.1016/j.oceaneng.2012.07.025, ISSN：0029-8018, Web of Science ID：WOS:000309619500021 - Modeling field observations of the 2011 Great East Japan tsunami: Efficacy of artificial and natural structures on tsunami mitigation
N. A. K. Nandasena; Yasushi Sasaki; Norio Tanaka
COASTAL ENGINEERING, Volume：67, First page：1, Last page：13, Sep. 2012, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.coastaleng.2012.03.009
DOI ID：10.1016/j.coastaleng.2012.03.009, ISSN：0378-3839, Web of Science ID：WOS:000306026700001 - Tsunami mitigation by coastal vegetation considering the effect of tree breaking
Nguyen Ba Thuy; Norio Tanaka; Katsutoshi Tanimoto
JOURNAL OF COASTAL CONSERVATION, Volume：16, Number：1, First page：111, Last page：121, Mar. 2012, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11852-011-0179-7
DOI ID：10.1007/s11852-011-0179-7, ISSN：1400-0350, Web of Science ID：WOS:000300888500011 - APPLICABILITY OF QUASI-THREE DIMENSIONAL FLOW ANALYSIS CONSIDERING RIVER BED VARIATION AND WASHOUT AND BREAKING CONDITION DURING A FLOOD
MORINAGA Taiji; YAGISAWA Junji; TANAKA Norio; UCHIDA Tatsuhiko
Advances in River Engineering, Volume：18, First page：77, Last page：82, 2012, [Reviewed]
For the management of river channel, it is very important to estimate correctly the change of river bed topography at a flood event. However, the bed variation is quite difficult to predict for the river where forestation occurs because of the change of vegetation resistance during a flood. The new method is proposed in this study to evaluate the bed variation around a forest on a gravel bar at large flood event. River bed variation analysis was conducted for the middle stream region of Arakawa River using quasi-three dimensional flow model combined with the new method that includes the washout and breaking condition of trees. Observed amount of bed variation was reproduced well by the model considering the washout and breaking condition of trees during a flood. On the other hand, the difference is small on the calculated river bed variation between the quasi-three dimensional and two-dimensional method. This result indicates that the improvement of vegetation resistance change during a flood event is important for the accurate evaluation of river bed variation at a large flood event that can washout or break trees.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.11532/river.18.0_77
DOI ID：10.11532/river.18.0_77, eISSN：2436-6714 - Effect of coastal forest and washout houses on the damage to houses by a tsunami
TANAKA Norio; YAGISAWA Junji; IIMURA Kosuke; KONDO Kota
Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), Volume：68, Number：2, First page：I_301, Last page：I_305, 2012, [Reviewed]
Coastal forests in large areas of the Tohoku and Kanto districts of Japan were destroyed by the tsunami after the Great East Japan Earthquake on 11 March 2011. A non-linear long wave model that includes the breaking and washout condition of trees and houses estimates the capacity of a coastal forest with 590m in width to reduce the moment of fluid force behind forest and the washout region of houses by around 110m. On the other hand, even the washed out sea embankment has been found to contribute for reducing the washout region of houses by 1520m. Washed out houses applied additional drag force on downstream houses, however it also reduces the washout region by 510m because of the resistance to tsunami current even after the houses were broken and floated.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/kaigan.68.i_301
DOI ID：10.2208/kaigan.68.i_301, ISSN：1884-2399, eISSN：1883-8944, CiNii Articles ID：130004550783, CiNii Books ID：AA12508551 - TSUNAMI PROPAGATION IN RIVERS AND OVERTOPPING FROM RIVER EMBANKMENT AFTER THE GREAT EAST JAPAN EARTHQUAKE
TANAKA Norio; YAGISAWA Junji; SATO Masayuki; HOSOGAYA Yoh
Advances in River Engineering, Volume：18, First page：357, Last page：362, 2012, [Reviewed]
The tsunami caused by the Great Japan Earthquake on 11 March 2011, broke most of the sea embankment and coastal vegetation belt and caused catastrophic damage to people and buildings in the Tohoku and Kanto regions of Japan. Field surveys were conducted to elucidate the damage to river embankments and their hinterlands (residential area) by tsunami propagation in river channels and overtopping of embankments. Ten rivers were selected for the field investigation. In the hinterlands where overtopping occurred, the tsunami came from two directions, coast and river. It is necessary to identify locations of river embankments that can be easily overtopped by a tsunami in different tsunami conditions, river morphology and inland embankment of roads or trains. Tsunami inundation patterns were classified by the river capacity and whether a river or sea embankment was breached or not. This will provide useful information for making new hazard maps and planning new cities. Numerical simulation in Abukumagawa River shows the clear relationship between the scoured area and the tsunami overtopping time.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.11532/river.18.0_357
DOI ID：10.11532/river.18.0_357, eISSN：2436-6714 - METHOD FOR EVALUATING THE FORESTATION ON GRAVEL BARS IN RIVERS CONSIDERING SEDIMENT DEPOSITION INDEX
YAGISAWA Junji; TANAKA Norio; FUKUOKA Shoji
Advances in River Engineering, Volume：18, First page：65, Last page：70, 2012, [Reviewed]
For evaluating the possibility of forestation in gravel bed bars, sediment deposition index (SDI) was derived considering the characteristic of flood hydrograph. The applicability of this index was validated in the middle stream reach of the Oppe River and the down stream reach of the Tamagawa River. Before and after typhoon No.12 and 15 on 2011, field investigations were conducted on gravel bars in Tamagawa and Oppe River. For above two floods, river flow was analyzed by two-dimensional depth-averaged Reynolds equations, and SDI and WOI (Washout index proposed by Tanaka et al. (2010)) were calculated. Calculated SDI in numerical simulation and situation of sand deposition on observed gravel bars were compared. When the critical value of SDI was considered to be 0.7, SDI could express well the sand deposition situation on observed gravel bars. By using SDI-WOI plot, vegetated situation of grass type vegetation on gravel bars in Tamagawa River was classified well. Grass type vegetation has been found to grow only on where SDI is larger than 0.7 and WOI is smaller than 1.4. These results indicated SDI-WOI plot proposed in this study has some possibility to evaluate the location that grass type vegetation can grow easily.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.11532/river.18.0_65
DOI ID：10.11532/river.18.0_65, eISSN：2436-6714 - Effects of root architecture, physical tree characteristics, and soil shear strength on maximum resistive bending moment for overturning Salix babylonica and Juglans ailanthifolia
Norio Tanaka; M. B. Samarakoon; Junji Yagisawa
LANDSCAPE AND ECOLOGICAL ENGINEERING, Volume：8, Number：1, First page：69, Last page：79, Jan. 2012, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11355-011-0151-6
DOI ID：10.1007/s11355-011-0151-6, ISSN：1860-1871, Web of Science ID：WOS:000298610300007 - Index of medium-class flood disturbance for increasing diversity of vegetation area at gravel bars or islands in middle of rivers
Norio Tanaka; Junji Yagisawa
INTERNATIONAL JOURNAL OF RIVER BASIN MANAGEMENT, Volume：10, Number：3, First page：255, Last page：267, 2012, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1080/15715124.2012.681661
DOI ID：10.1080/15715124.2012.681661, ISSN：1571-5124, eISSN：1814-2060, Web of Science ID：WOS:000212537000004 - Characteristics of damage due to tsunami propagation in river channels and overflow of their embankments in Great East Japan Earthquake
Norio Tanaka; Junji Yagisawa; Satoshi Yasuda
INTERNATIONAL JOURNAL OF RIVER BASIN MANAGEMENT, Volume：10, Number：3, First page：269, Last page：279, 2012, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1080/15715124.2012.694365
DOI ID：10.1080/15715124.2012.694365, ISSN：1571-5124, eISSN：1814-2060, Web of Science ID：WOS:000212537000005 - Numerical assessment of boulder transport by the 2004 Indian ocean tsunami in Lhok Nga, West Banda Aceh (Sumatra, Indonesia)
N. A. K. Nandasena; Raphael Paris; Norio Tanaka
COMPUTERS & GEOSCIENCES, Volume：37, Number：9, First page：1391, Last page：1399, Sep. 2011, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.cageo.2011.02.001
DOI ID：10.1016/j.cageo.2011.02.001, ISSN：0098-3004, Web of Science ID：WOS:000295201500020 - Reassessment of hydrodynamic equations: Minimum flow velocity to initiate boulder transport by high energy events (storms, tsunamis)
N. A.K. Nandasena; Raphaël Paris; Norio Tanaka
Marine Geology, Volume：281, Number：1-4, First page：70, Last page：84, Mar. 2011, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.margeo.2011.02.005
DOI ID：10.1016/j.margeo.2011.02.005, ISSN：0025-3227, SCOPUS ID：79952817656 - Impact of rubble mound groyne structural interventions in restoration of Koggala lagoon, Sri Lanka; numerical modelling approach
Gayan Lakendra Gunaratne; Norio Tanaka; G. P. Amarasekara; Tilak Priyadarshana; Jagath Manatunge
JOURNAL OF COASTAL CONSERVATION, Volume：15, Number：1, First page：113, Last page：121, Mar. 2011, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11852-010-0125-0
DOI ID：10.1007/s11852-010-0125-0, ISSN：1400-0350, Web of Science ID：WOS:000289363900010 - INDEX FOR EXPRESSIING VEGETATION BREAKAGE AND WASHOUT BY FLOOD DISTURBANCE AND HIGHLY CORRELATED WITH BIODIVERSITY ON GRAVEL-BED BARS
TANAKA Norio; YAGISAWA Junji; KIKUJI Yu; SATO Takanori; FUKUOKA Shouji
Advances in River Engineering, Volume：17, First page：227, Last page：232, 2011, [Reviewed]
For elucidating the relationship between flood disturbance and biodiversity of vegetation in gravel bed bars, Breakage or Overturning Index (BOI) and Wash-Out Index (WOI) were derived considering the difference of vegetation breaking phenomena due to floods, i.e. trunk breakage or overturning, and wash-out of trees or grass, respectively. Coupling the two indices, the method for classifying the river habitat into five, not tree breaking and not washout (Region A), tree breaking and not washout (Region B), not tree breaking and washout (annual grass) (Region C), tree breaking and washout (annual grass) (Region D), and washout of all vegetation (Region E), is proposed. The condition at which WOI is larger than 0.5, and WOI is less than one, is correlated with the Shannon-Wiener index at three gravel-bed bars in the Arakawa River, Japan. Especially, when BOI is larger than one, the biodiversity is increased. For Region A and E, the trend is assumed to be affected by the duration after flood. The proposed index for Region D has possibilities to express middle class disturbance that is closely related to the biodiversity at the habitat.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.11532/river.17.0_227
DOI ID：10.11532/river.17.0_227, eISSN：2436-6714 - Wetland plant dynamics
Norio Tanaka; S. K. Weragoda
Wetlands for Tropical Applications: Wastewater Treatment by Constructed Wetlands, First page：47, Last page：68, Jan. 2011, [Reviewed]
Imperial College Press, English, In book
DOI：https://doi.org/10.1142/9781848162983_0004
DOI ID：10.1142/9781848162983_0004, SCOPUS ID：84986550201 - Coastal vegetation planting projects for tsunami disaster mitigation: effectiveness evaluation of new establishments
Norio Tanaka; K. B. S. N. Jinadasa; M. I. M. Mowjood; M. S. M. Fasly
LANDSCAPE AND ECOLOGICAL ENGINEERING, Volume：7, Number：1, First page：127, Last page：135, Jan. 2011, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1007/s11355-010-0122-3
DOI ID：10.1007/s11355-010-0122-3, ISSN：1860-1871, Web of Science ID：WOS:000286835800014 - Flow structures and sedimentation characteristics around clump-type vegetation
Norio Tanaka; Junji Yagisawa
JOURNAL OF HYDRO-ENVIRONMENT RESEARCH, Volume：4, Number：1, First page：15, Last page：25, Apr. 2010, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/j.jher.2009.11.002
DOI ID：10.1016/j.jher.2009.11.002, ISSN：1570-6443, eISSN：1876-4444, Web of Science ID：WOS:000281648600003 - EFFECTS OF SOIL SHEAR STRENGTH AND ROOT ARCHITECTURE ON MAXIMUM RESISTIVE BENDING MOMENT FOR OVERTURNING
TANAKA Norio; YAGISAWA Junji; SAMARAKOON Methsiri; SASAKI Yasushi; TONEGAWA Makoto
Advances in River Engineering, Volume：16, First page：225, Last page：230, 2010
Tree pulling experiments that simulated flood action were conducted using Salix babylonica and Juglans ailanthifolia, exotic and invasive trees in Japanese rivers.. The resulting damage was examined in order to assess the effects of physical tree characteristics and root architecture on the maximum resistive bending moment (Mmax) for overturning. In situ soil shear strength tests were conducted in order to measure soil strength parameters. Significantly correlated (p<0.05) non-linear relationships were found between Mmax and tree characteristics, and H*D 2 provided the best predictor of the Mwithin them. Non-linear models were fitted between Mmax and Dbh for each species. The more efficient root architecture to withstand overturning is the heart-root system of S. babylonica, and the plate-root system of J. ailanthifolia is less efficient not with the same breast height diameter but with the same root volume. The average Mmax of S. babylonica for overturning each species decreased linearly with increasing soil cohesion within the experimental range because root anchoring depth is restricted with increasing the soil cohesion.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.11532/river.16.0_225
DOI ID：10.11532/river.16.0_225, eISSN：2436-6714 - METHOD FOR EVALUATING THE DYNAMICS OF FOREST IN RIVERS CONSIDERING TWO INDICES REPRESENTING THE BREAKING AND WASH-OUT CONDITIONS OF TREES ON GRAVEL-BED BARS
TANAKA Norio; YAGISAWA Junji; FUKUOKA Shoji
Doboku Gakkai Ronbunshuu B, Volume：66, Number：4, First page：359, Last page：370, 2010
For evaluating the possibility of forestation in gravel bed bars, Breakage or Overturning Index (BOI) and Wash-Out Index (WOI) were derived considering the difference of tree breaking phenomena due to floods, i.e. trunk breakage or overturning, and wash-out of trees, respectively in this study. Coupling the two indices, the method for classifying the river habitat into four, not breaking and not washout (Region A), breaking and not washout (Region B), not breaking and washout (Region C), and breaking and washout (Region D), is proposed. The applicability of the two indices, BOI and WOI, were validated in the middle stream reach of the Arakawa River and the down stream from the upper stream reach of the Tamagawa River. In addition, in seven locations where relative height from ordinary water level is different, the breaking modes of trees were classified in the BOI-WOI plot considering floods with different return periods. There are two patterns for the dynamics of plots with flood return period in the BOI-WOI figure. One is changed from Region A to Region D (Pattern I), and the second is changed from Region A to Region B (Pattern II). In Pattern II, trees are not washed out even though they are damaged. Then, the location has high possibility to be a stable forest. Therefore, the countermeasure for preventing the forestation should be considered to change the habitat from Pattern II to Pattern I.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscejb.66.359
DOI：https://doi.org/10.2208/jscejj.23-00264_references_DOI_ZjZHof5RltazodfDip0JRZp1OiA
DOI ID：10.2208/jscejb.66.359, eISSN：1880-6031, CiNii Articles ID：130004468118 - 地盤強度と根の形状特性が樹木転倒限界に与える影響について
田中 規夫; 八木澤 順治
Volume：第16巻, First page：225, Last page：230, 2010, [Reviewed]
Scientific journal - Flood wash-out conditions of an exotic and invasive plant, Eragrostis curvula, in Arakawa River, Japan
Junji Yagisawa; Norio Tanaka
INTERNATIONAL JOURNAL OF RIVER BASIN MANAGEMENT, Volume：8, Number：1, First page：15, Last page：24, 2010, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1080/15715121003715057
DOI ID：10.1080/15715121003715057, ISSN：1571-5124, eISSN：1814-2060, Web of Science ID：WOS:000212527900003 - Bending Moment on a Tree (Pandanus odoratissimus) due to Tsunami Flow around Edge of Coastal Forest
THUY N. B.; TANIMOTO Katsutoshi; TANAKA Norio; HARADA Kenji; IIMURA Kosuke
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING, Volume：66, Number：1, First page：276, Last page：280, 2010
Pandanus odoratissimus grown on sandy beach is considered as effective tree species providing tsunami mitigation due to its density and complex aerial root structure, but it is not strong enough to preclude the risk of breaking by action of high tsunami. In the present paper, the bending moment acting at a critical position (top of aerial root) of mature P. odoratissimus around edge of coastal forest has been investigated by numerical simulations. The bending moment is greatly influenced by forest condition (forest width and tree density) as well as tsunami conditions (period and height) and was formulated in the non-dimensional form for three representative points including the front corner of forest. The bending moment calculated by the curve-fit formula agrees with the simulated bending moment within 10% error.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/kaigan.66.276
DOI ID：10.2208/kaigan.66.276, ISSN：1884-2399, CiNii Articles ID：130004956564, CiNii Books ID：AA12508551 - Tsunami Mitigation Effects by the Combination of Vegetation with Different Tree Density
IIMURA Kosuke; TANAKA Norio; HARADA Kenji; TANIMOTO Katsutoshi
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING, Volume：66, Number：1, First page：281, Last page：285, 2010
There are many types of coastal vegetation. However, the tsunami mitigation effects in relation to the tree density distribution in a forest have not been investigated yet. The objective of this study is to experimentally investigate the tsunami mitigation effects by the combination of vegetation with different tree density under the same vegetation thickness (dn). Vegetation is modeled by circular cylinders and arranged in a wave channel with slope. In the experiments, water level, velocity, force and run-up height are measured. When tree density is dense, the run-up height and maximum velocity behind vegetation become smaller than the sparse case. This implies that the coastal vegetation for tsunami mitigation should be as dense as possible, even if the vegetation thickness is the same.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/kaigan.66.281
DOI ID：10.2208/kaigan.66.281, ISSN：1884-2399, CiNii Articles ID：130004956565 - Restoration of Koggala lagoon: Modelling approach in evaluating lagoon water budget and flow characteristics
Gayan Lakendra Gunaratne; Norio Tanaka; Prasanna Amarasekara; Tilak Priyadarshana; Jagath Manatunge
JOURNAL OF ENVIRONMENTAL SCIENCES, Volume：22, Number：6, First page：813, Last page：819, 2010, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1016/S1001-0742(09)60182-0
DOI ID：10.1016/S1001-0742(09)60182-0, ISSN：1001-0742, eISSN：1878-7320, Web of Science ID：WOS:000278834400004 - Efficiency of coconut coir-pith as an alternative substrate in the treatment of submerged macrophyte wetland systems in tropical conditions
S. K. Weragoda; N. Tanaka; B. G. N. Sewwandi; M. I. M. Mowjood
CHEMISTRY AND ECOLOGY, Volume：26, Number：6, First page：445, Last page：452, 2010, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.1080/02757540.2010.512008
DOI ID：10.1080/02757540.2010.512008, ISSN：0275-7540, eISSN：1029-0370, Web of Science ID：WOS:000284954000004 - Impacts of Plant (Egeria densa) Density and Nutrient Composition on Nitrogen Transformation Mechanisms in Laboratory Microcosms
S. K. Weragoda; Norio Tanaka; K. B. S. N. Jinadasa; Yasushi Sasaki
JOURNAL OF FRESHWATER ECOLOGY, Volume：24, Number：3, First page：393, Last page：401, Sep. 2009, [Reviewed]
English, Scientific journal
ISSN：0270-5060, Web of Science ID：WOS:000269773700006 - FLOW STRUCTURES AND SEDIMENTATION CHARACTERISTICS AROUND COLONY-TYPE VEGETATION AT FLOOD EVENTS
Norio Tanaka; Shiho Ito; Junji Yagisawa
ADVANCES IN WATER RESOURCES AND HYDRAULIC ENGINEERING, VOLS 1-6, First page：981, Last page：986, 2009, [Reviewed]
English, International conference proceedings
Web of Science ID：WOS:000268750700172 - TSUNAMI FLOW VELOCITY BEHIND THE COASTAL FOREST WITH AN OPEN GAP-EFFECTS OF TSUNAMI CONDITION AND TREE DENSITY
Nguyen Ba Thuy; Norio Tanaka; Katsutoshi Tanimoto
PROCEEDINGS OF COASTAL DYNAMICS 2009, 2009, [Reviewed]
English, International conference proceedings
Web of Science ID：WOS:000273387500050 - EFFECTS OF FLOOD DISTURBANCE ON THE MORPHOLOGY, PRODUCTIVITY AND RUNNER-EXPANSION OF Phragmites japonica
AOKI Shinya; TANAKA Norio; YAGISAWA Junji
PROCEEDINGS OF HYDRAULIC ENGINEERING, Volume：51, First page：1255, Last page：1260, 2007
he effect of flood disturbance on the morphology of runners, plant productivity and runner-expansion characteristics of Pharagmites japonica was investigated at midstream of the Arakawa River. The dynamic growth model of P. japonica was developed considering the effect of disturbance, i. e., the difference of runner morphology and shoot productivity in the parent colony. The aboveground biomass distribution along the distance from the parent colony was well represented by the model. For analyzing the effect of flood disturbance interval, maximum water levels at three flood events were calculated and evaluated whether the habitat of P. japonica were inundated or not. In addition, the threshold friction velocity of the average grain diameter was compared with the friction velocity at the flood event. Although the gravel movement possibility has a little different tendency with the damaged situation of P. japonica, the clear relationship between the flood interval and the productivity in each habitat is found. The analysis indicates the possibility to calculate the plant productivity under the effect of flood disturbance.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.51.1255
DOI：https://doi.org/10.1002/esp.5469_references_DOI_Rmvdp1XP6A2cQYzxHRYJGNzQQ0t
DOI ID：10.2208/prohe.51.1255, ISSN：0916-7374, eISSN：1884-9172, CiNii Articles ID：10021137809, CiNii Books ID：AA1045915X - HYDRAULIC APPROACH ON THE GAS CONVECTIONAL RESISTANCE OF THE CULM IN PHRAGMITES AUSTRALIS
YUTANI KENTARO; TANAKA NORIO
土木学会論文集 B, Volume：63, Number：4, First page：351, Last page：356, 2007, [Reviewed]
Japanese
DOI：https://doi.org/10.2208/jscejb.63.351
DOI ID：10.2208/jscejb.63.351, ISSN：1880-6031, CiNii Articles ID：80018045556 - BELOWGROUND DYNAMICS AND STRATEGIES OF EMERGENT MACROPHYTES, Typha angustifolia AND Zizania latifolia, AFTER CUTTING THEIR AERIAL SHOOTS
WATANABE Tetsuhiro; TANAKA Norio; TAKEMURA Takeshi; YAGISAWA Junji; ASAEDA Takashi
PROCEEDINGS OF HYDRAULIC ENGINEERING, Volume：48, First page：1603, Last page：1608, 2004
Typha angustifolia were cut in June, July and August in 2002, and in May and July in 2003 for i nvestigating their strategy to survive from cutting at different timing. Zizania latifolia was also cut in July in 2003. The cutting effects were evaluated quantitatively by regrowth characteristics of aboveground leaves just after cutting. The belowground production of T. angustifolia was decreased by summer cutting. This was due to the decrement of transportation from original shoot to belowground and from regrowth shoot to belowground organ. July to August is the best season for controlling expansion of the species, because the transportation can be decreased by the cutting. The amount of transportation from belowground to aboveground organ was a little compared with the decrement of belowground biomass and was almost the same with the two species, but heterotrophic season just after cutting were found 15 days, 40days in case of T. angustifolia and Z. latifolia, respectively. The season was longer and secondary shoot was formed in case of Z. latifolia. This implies the different strategy of Z. latifolia with T. angustifolia.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.48.1603
DOI ID：10.2208/prohe.48.1603, ISSN：0916-7374, eISSN：1884-9172, CiNii Articles ID：130004043578 - Effects of latitude, nutrients in soil and preemption on the long-term competition process of emergent macrophytes. Ecol. Civil Eng. 6(2), 157-164, 2004
Norio Tanaka; Takashi Asaeda
Ecology and Civil Engineering, Volume：6, Number：2, First page：157, Last page：164, 2004, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.3825/ece.6.157
DOI ID：10.3825/ece.6.157, ISSN：1882-5974, SCOPUS ID：85024713252 - Evaluation of the recovering process of Phragmites australis after cutting by the dynamic regrowth model and the validation by the observation. Ecol. Civil Eng. 6(2), 177-190, 2004
Kentaro Yutani; Takashi Asaeda; Norio Tanaka; Shiromi Karunaratne
Ecology and Civil Engineering, Volume：6, Number：2, First page：177, Last page：190, 2004, [Reviewed]
English, Scientific journal
DOI：https://doi.org/10.3825/ece.6.177
DOI ID：10.3825/ece.6.177, ISSN：1882-5974, SCOPUS ID：33846935897 - Evaluation of moderate transplanting distance of Carex kobomugi Ohwi by growth dynamic analysis
SIRONO Yusuke; TANAKA Norio; WATANABE Hajime
Journal of the Japanese Society of Revegetation Technology, Volume：29, Number：1, First page：27, Last page：32, Aug. 2003
Long term dynamics of beachside vegetation, Carex kobomugi Ohwi , was evaluated by their growth model. The model was formulated by rhizome formation characteristics and long-term senescence with panicle formation obtained at Ryuyo beach. The model agrees well for the seasonal variation of their aboveground and belowground biomass. This model describes the future horizontal enlargement and distribution of their biomass. For horizontal distribution, we analyzed with 0.2, 0.4, 0.6, 0.8, 1.0 and 1.6 m transplanting distances. With 0.2-0.4 m distances, we couldn't expect to control brown sand in wide area within a few years. Moreover, with 1.0-1.6m distances, it took much time until controlling brown sand within expectable. The optimized transplant distances were found within 0.6-0.8 m by considering their enlargement and belowground biomass.
The Japanese Society of Revegetation Technology, Japanese
DOI：https://doi.org/10.7211/jjsrt.29.27
DOI ID：10.7211/jjsrt.29.27, ISSN：0916-7439, CiNii Articles ID：110002912166, CiNii Books ID：AN10130633 - The effects of cutting time on the regrowth of Typha angustifolia
YUTANI Kentaro; TANAKA Norio; TAKEMURA Takeshi; ASAEDA Takashi
Journal of the Japanese Society of Revegetation Technology, Volume：29, Number：1, First page：21, Last page：26, Aug. 2003
A experimental study was carried out to investigate the effects of shoots cutting time on the regrowth characteristics of Typha angustifolia. Field observation was conducted in the pond. Four 1 m × 1 m quadrats were demarcated in the T.angustifolia community, and surrounding area was kept undisturbed to use as a control area. In each quadrat, shoots were cut at about 20 cm above water surface in June, July, August and September 2002 and allowed to re-grow from cutting stubbles at all quadrats. The results of this study shows that June and July cut shoots were re-elongated up to the same height as the control. While delay of the cutting time showed decreased re-growth shoots biomass. Rhizome of August cut quadrat showed smallest biomass in December. Moreover, shoot cutting in August is found to be more suitable to suppress T.angustifolia expansion.
The Japanese Society of Revegetation Technology, Japanese
DOI：https://doi.org/10.7211/jjsrt.29.21
DOI ID：10.7211/jjsrt.29.21, ISSN：0916-7439, CiNii Articles ID：110002912165, CiNii Books ID：AN10130633 - Belowground dynamics and growth strategy of three Typha spp. in Japan
TANAKA Norio; ASAEDA Takashi; SEKI Wataru
ECE, Volume：6, Number：1, First page：25, Last page：34, Aug. 2003
Belowground dynamics and strategies were analyzed with respect to three species of Typha spp. in Japan. Root and shoot ratio (R/S) and root and rhizome ratio of them were closely related to the order of their maximum penetrating water depth. More rhizome were developed with deeper water depth, accordingly, biomass allocation for roots became smaller. Bioenergetic model of T. orientalis was formulated for analyzing their belowground strategy and indicated that nutrient flux from below to aboveground organs in heterotrophic season were smaller than T. angustifolia. T. latifolia, T. angustifolia and T. orientalis has each different strategy, enlargement, deep water penetration and preemption, respectively. Typha orientalis increases their density before flowering and the flowering season was the last among three species. Preemption of belowground space was the important strategy for T. orientalis.
Ecology and Civil Engineering Society, Japanese
DOI：https://doi.org/10.3825/ece.6.25
DOI ID：10.3825/ece.6.25, ISSN：1344-3755, CiNii Articles ID：10013954616, CiNii Books ID：AA11528360 - BOOK REVIEW
TANAKA Norio
ECE, Volume：5, Number：1, First page：128, Last page：128, 2002
Ecology and Civil Engineering Society
DOI：https://doi.org/10.3825/ece.5.128
DOI ID：10.3825/ece.5.128, ISSN：1344-3755, CiNii Articles ID：130003642676 - 海浜植生コウボウムギの生長および平面拡大解析
田中 規夫; 渡辺 肇; 谷本 勝利; 小松 原肇
Volume：49, First page：506, Last page：510, 2002
砂浜海岸の砂草による飛砂補足効果は定性的に確認され, 砂草の移植などによる飛砂抑制などの工学的試みが行われている.しかし, 長期的な砂草と地形変動についての定量的な知見を得るに至ってはいない. そこで, 本研究では日本における代表的な海浜植生であるコウボウムギについて現地観測を行い, その地上部・地下部の季節動態を解析する生長予測モデルを構築し, またコウボウムギ移植後の海浜安定効果の指標となる地下部の平面的な拡大力を, 横走地下茎の展開力を組み込むことにより定量評価を行った.
Japanese
DOI：https://doi.org/10.2208/proce1989.49.506
DOI ID：10.2208/proce1989.49.506, ISSN：0916-7897, CiNii Articles ID：130003807514 - ガマ·ヒメガマの競合優位性の変化に与える土中栄養塩量の解析
田中 規夫; 浅枝 隆; 渡辺 哲広
Volume：68, First page：183, Last page：183, 2002
Japanese
DOI：https://doi.org/10.14903/jslim.68.0.183.0
DOI ID：10.14903/jslim.68.0.183.0, CiNii Articles ID：130004629094 - 生長期の刈り取りが翌年のオギMiscanthus sacchariflorusの従属栄養生長量に与える影響について
北上 裕規; 田中 規夫; 浅枝 隆; 武村 武
Volume：68, First page：186, Last page：186, 2002
Japanese
DOI：https://doi.org/10.14903/jslim.68.0.186.0
DOI ID：10.14903/jslim.68.0.186.0, CiNii Articles ID：130004629097 - The effect of stratification on the flow around a hemispheric obstacle on a flat plate.
TANAKA Norio; TAMAI Nobuyuki; HIROSAWA Yuusuke
Journal of the Visualization Society of Japan, Volume：8, Number：30, First page：133, Last page：136, 1988
The stratified flow around a hemispheric obstacle on a flat plate has heen studied. The flows were produced by towing an inverted body through saline-water solutions with stable density gradients and were visualized by dye-injection method. The study demonstrated that three types of the flow structures were formed depending on the stratification. Two types of them are similar to the neutral cases but are strogly affected by the three-dimensional lee wave. In case of strongly stratified flow, most of the fluid cannot surpasses the hemisphere but passes around it and forms Karman vortex street behind the hemisphere. The change of the flow structure is closely related to the K-H instability in front of and behind a hemisphere.
THE VISUALIZATION SOCIETY OF JAPAN, Japanese
DOI：https://doi.org/10.3154/jvs1981.8.133
DOI ID：10.3154/jvs1981.8.133, ISSN：0287-3605, CiNii Articles ID：130003647690 - Evaluation of supplied-sediment dynamics on the armored bed in the downstream of Futase-dam reservoir
Takezawa, S; Tanaka, N; Yagisawa, J; Hondo, T
Advances in River Engineering, Volume：21, Number：117, First page：115, Last page：120, [Reviewed]
Japanese, Scientific journal
- Patterns of treefall damages in Quercus dentata and Larix gmelinii by level 2 Tsunami : By numerical simulation
佐藤 創; 田中 規夫; 鳥田 宏行; 真坂 一彦; 阿部 友幸; 岩﨑 健太; 佐藤 弘和
Number：65, First page：75, Last page：78, Feb. 2017
Japanese
ISSN：2186-7526, CiNii Articles ID：40021128196, CiNii Books ID：AA12597416 - 実河川に設置した簡易水路での掃流力増加実験における水生昆虫と細砂分の移動現象
古里栄一; 古里栄一; 坂田良介; 田中規夫; 田中規夫
Volume：18th, 2014
J-Global ID：201402240594749890 - 早瀬と平瀬における付着藻類の平面分布と流れ場との関係に関する現地調査
坂田良介; 古里栄一; 古里栄一; 田中規夫; 田中規夫
Volume：18th, 2014
J-Global ID：201402270885096866 - 氾濫流解析結果を活用した大河川氾濫時の避難関連情報の提案
田中規夫; 古里栄一
Volume：69th, 2014
J-Global ID：201402277725855307 - DRAG FORCE ACTING ON A QUADRATIC PRISM AND BED SHEAR STRESS AROUND IT IN SUPERCRITICAL FLOW
八木澤 順治; 田中 規夫
Volume：57, First page：1_685, Last page：690, 2013
Japanese
ISSN：1880-8751, CiNii Articles ID：40019818417 - 物理的撹乱と水生昆虫群集の関係-津田仮説に基づく新しい群集指標の提案と二瀬ダム土砂還元の影響評価への適用の試み-
古里栄一; 田中規夫; 田中規夫
Volume：17th, 2013
J-Global ID：201402220631685155 - 礫後流域の水理学的特性と水生昆虫群集との関係評価に関する礫床河川での現地実験
古里栄一; 坂田良介; 田中規夫; 田中規夫
Volume：17th, 2013
J-Global ID：201402268489331939 - 二瀬ダム下流河川における土砂還元の効果:非出水期における小規模河床材料の移動性に着目して
田中規夫; 田中規夫; 古里栄一
Volume：17th, 2013
J-Global ID：201402287396194227 - FIELD INVESTIGATIONS ON SALINITY STRATIFICATION OF COASTAL LAGOON WITH PERMANETLY OPENED MOUTH IN SRI LANKA
古里栄一; 田中規夫; 田中規夫; PRIYADARSHANA Tilak; AMARASEKARA Prasanna
土木学会論文集 B1(水工学)(Web), Volume：69, Number：4, 2013
ISSN：2185-467X, J-Global ID：201402226002486237 - Report on Damage Situations by Tsunami Propagation in River Channels and its Overtopping from Embankment in Great East Japan Earthquake
田中 規夫; 八木澤 順治; 安田 智史
Volume：44, First page：21, Last page：24, 2010
The tsunami caused by the Great Japan Earthquake at 14:46 JST on 11 March 2011, with a magnitude of 9.0 and epicenter 129 km east of Sendai, broke most of the sea embankment and coastal vegetation belt and caused catastrophic damage to people and buildings in the Tohoku and Kanto districts of Japan. A field survey was conducted to elucidate the damage situation of residential region by tsunami propagation in river channels and its overtopping from embankment. Abukumagawa River, Nanakita River and Old Kitakamigawa River located on Miyagi prefecture were selected for field investigation. In Abukumagawa River and Old Kitakamigawa River, overtopping flow from embankment occurred mainly at the outer-bank side of meandering section. Severe erosion was occurred on levee slope and neighboring houses were washed out by the scouring due to the overtopping flow. The hinterlands of coast and river had tsunami from two directions, coast and river, and the damage situation including the evacuation action for people became complex. Therefore, it is necessary to elucidate the location where tsunami is easy to be overtopped for different tsunami conditions.
Japanese
ISSN：1880-4446, CiNii Articles ID：120005386080 - Effect of open gap in coastal forest on tsunami run-up-investigations by experiment and numerical simulation
Nguyen Ba Thuy; Katsutoshi Tanimoto; Norio Tanaka; Kenji Harada; Kosuke Iimura
OCEAN ENGINEERING, Volume：36, Number：15-16, First page：1258, Last page：1269, Nov. 2009
English
DOI：https://doi.org/10.1016/j.oceaneng.2009.07.006
DOI ID：10.1016/j.oceaneng.2009.07.006, ISSN：0029-8018, Web of Science ID：WOS:000271250800013 - Tsunami flow around edge of coastal forest: experiments and numerical simulations
谷本 勝利; 田中 規夫; Thuy N. B.
Journal of coastal engineering, JSCE, Volume：56, First page：361, Last page：365, Oct. 2009
Japanese
ISSN：0916-7897, CiNii Articles ID：40018987563, CiNii Books ID：AN10369955 - Analysis and evaluation of tsunami mitigation effects by coastal vegetation
飯村 耕介; 田中 規夫; 谷本 勝利
Journal of coastal engineering, JSCE, Volume：56, First page：366, Last page：370, Oct. 2009
Japanese
ISSN：0916-7897, CiNii Articles ID：40018987564, CiNii Books ID：AN10369955 - DISTRIBUTED WATER BALANCE WITH RIVER DYNAMIC-DIFFUSIVE FLOW ROUTING MODEL
Ahmed Hassan; Tanaka Norio; Tamai Nobuyuki
JOURNAL OF HYDRODYNAMICS, Volume：21, Number：4, First page：564, Last page：572, Aug. 2009
English
DOI：https://doi.org/10.1016/S1001-6058(08)60185-7
DOI ID：10.1016/S1001-6058(08)60185-7, ISSN：1001-6058, Web of Science ID：WOS:000270869100017 - Effects of water level fluctuation on radial oxygen loss, root porosity, and nitrogen removal in subsurface vertical flow wetland mesocosms
S. Sasikala; Norio Tanaka; H. S. Y. Wah Wah; K. B. S. N. Jinadasa
ECOLOGICAL ENGINEERING, Volume：35, Number：3, First page：410, Last page：417, Mar. 2009
English
DOI：https://doi.org/10.1016/j.ecoleng.2008.10.003
DOI ID：10.1016/j.ecoleng.2008.10.003, ISSN：0925-8574, Web of Science ID：WOS:000264972200008 - Vegetation bioshields for tsunami mitigation: Review of effectiveness, limitations, construction, and sustainable management
Norio Tanaka
Landscape and Ecological Engineering, Volume：5, Number：1, First page：71, Last page：79, Feb. 2009
English, Book review
DOI：https://doi.org/10.1007/s11355-008-0058-z
DOI ID：10.1007/s11355-008-0058-z, ISSN：1860-1871, SCOPUS ID：59149097811 - Vegetation bioshields for tsunami mitigation: review of effectiveness, limitations, construction, and sustainable management
Norio Tanaka
LANDSCAPE AND ECOLOGICAL ENGINEERING, Volume：5, Number：1, First page：71, Last page：79, Feb. 2009
English, Book review
DOI：https://doi.org/10.1007/s11355-008-0058-z
DOI ID：10.1007/s11355-008-0058-z, ISSN：1860-1871, Web of Science ID：WOS:000263118100007 - Effects of tree characteristics and substrate condition on critical breaking moment of trees due to heavy flooding
Norio Tanaka; Junji Yagisawa
Landscape and Ecological Engineering, Volume：5, Number：1, First page：59, Last page：70, Feb. 2009
English
DOI：https://doi.org/10.1007/s11355-008-0060-5
DOI ID：10.1007/s11355-008-0060-5, ISSN：1860-1871, SCOPUS ID：59149097545 - 海岸地域における防風フェンスと砂草の飛砂防止効果に関する研究
田中規夫; 干川真; 荒井三七雄; Mulati Yusaiyin
2009 - 砂礫州上樹木の洪水時破壊限界に関与する抗力モーメントと底面せん断力の評価
田中 規夫; 八木澤順治
2009 - 海岸堤防と樹林帯の組み合わせによる津波減衰効果および樹林帯切れ間による津波流れの影響
田中規夫; 原田賢治; 谷本勝利; 飯村耕介; B. N. Thuy
2009 - Analysis and Evaluation of Tsunami Mitigation Effects by Coastal Vegetation
IIMURA Kosuke; TANAKA Norio; TANIMOTO Katsutoshi; TANAKA Shigenobu
Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), Volume：56, Number：1, First page：366, Last page：370, 2009
There are many types of coastal vegetation. However, the systematical method for evaluating the tsunami mitigation effect by coastal vegetation has not been established yet. Therefore, this study systematically analyzes the equations for tsunami through coastal vegetation and evaluates the vegetation effect on the tsunami run-up height and fluid force. The tsunami mitigation effects are investigated by numerical simulation based on non-linear long wave equations. When using dNall , cumulative vegetation length in streamwise direction that includes the effect of different vegetation stand structures, the evaluation of the tsunami mitigation effect has been enabled. The tsunami mitigation effect and dNall show high correlation, and evaluation equations for tsunami mitigation effect by coastal vegetation are given by exponential functions.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/kaigan.65.366
DOI ID：10.2208/kaigan.65.366, ISSN：1884-2399, CiNii Articles ID：130004956306 - Tsunami Flow around Edge of Coastal Forest-Experiments and Numerical Simulations-
TANIMOTO Katsutoshi; TANAKA Norio; THUY N. B.; IIMURA Kosuke; HARADA Kenji
Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), Volume：56, Number：1, First page：361, Last page：365, 2009
In the present study, laboratory experiments have been carried out to confirm the applicability of numerical method based on two-dimensional non-linear long wave equations incorporated with drag resistance of trees and eddy viscosity forces to tsunami flow around the edge of coastal forest. Then the method has been applied to a prototype scale condition to investigate tsunami flow around edge of coastal forest of Pandanus odoratissimus. The flow velocity outside and around the edge of coastal forest is increased, consequently the potential tsunami force is considerably increased there. On the other hand, the moment due to drag force at the top of aerial root of P. odoratissimus near the edge of the forest is decreased significantly to reduce the risk of breaking as the forest width increases.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/kaigan.65.361
DOI ID：10.2208/kaigan.65.361, ISSN：1884-2399, CiNii Articles ID：130004956305 - 海岸堤防と海岸樹林の組み合わせによる津波減災効果に関する数値計算
飯村耕介; 田中規夫; 原田賢治; 谷本勝利
Volume：25, First page：69, Last page：74, 2009 - 砂礫州上樹木の破壊形態の相違を考慮した樹林化判定手法に関する研究
八木澤順治; 田中規夫; 福岡捷二
Volume：15, First page：153, Last page：158, 2009 - Impacts of plant (Egeria densa) density and influent composition on nitrogen transformation mechanisms in submerged plant wetland systems
Weragoda, S.K; Tanaka, N; Sasaki, Y; Jinadasa; K.B.S.N
Volume：24, Number：3, First page：393, Last page：401, 2009 - Investigations on Tsunami Inundation and Coastal Vegetation Characteristics
Nandasena N. A. K; Tanaka N; Tanimoto K; Bandara R; P. S. S; Ratnasooriya A. H. R; Samarawickkrama S. P; Hettiarachchi S. S. L
First page：1118, Last page：1128, 2009 - 砂礫州上樹木の破壊・流失条件と樹林化判定指標について
2009 - 津波に対する樹木の影響評価、In:岡田穣(2008)海岸林の津波被害軽減効果に関する研究成果報告会-文部科学省科学研究費補助金（基盤研究(A)海外）「インド洋大津波に対する海岸林の効果の検証と今後の海岸息保全のあり方」
田中規夫
Volume：(3), First page：39, Last page：46, 2009 - 砂礫州上における繁茂場所の相違が樹木の洪水時流失限界に及ぼす影響
田中規夫; 八木澤順治; 福岡捷二
Volume：53, First page：631, Last page：636, 2009 - 河道内植生の洪水による破壊・再生を考慮した植生動態モデルの開発
八木澤順治; 田中規夫
Volume：53, First page：1171, Last page：1176, 2009 - 護床ブロックの洪水に対する安定条件に関する研究
井上浩一; 田中規夫; 八木澤順治
Volume：53, First page：961, Last page：966, 2009 - 海岸地域における防風フェンスと砂草の飛砂防止効果に関する研究
田中規夫; 干川真; 荒井三七雄; Mulati Yusaiyin
埼玉大学工学部紀要, Volume：42, First page：44, Last page：45, 2009
This paper reports the research project in Chigasaki city related to wind protection fence and grasses on beach sand for preventing the wind blown sand. In situ experiments were conducted on the beach with fence. Wind velocity and wind-blown sand flux were measured and quantitative data were obtained. The experiments will be continued and the optimal fence structure and growth condition of the vegetation will be discussed in 2009. Optimal fence structure for preventing salt spray and effective width of coastal forest in dependent of the optical porosity are being discussed in numerical simulation and the papers are introduced in this manuscript.
Japanese
CiNii Articles ID：120005386064 - 砂礫州上樹木の洪水時破壊限界に関与する抗力モーメントと底面せん断力の評価
田中 規夫; 八木澤順治
埼玉大学工学部紀要, 2009 - 海岸堤防と樹林帯の組み合わせによる津波減衰効果および樹林帯切れ間による津波流れの影響
田中規夫; 原田賢治; 谷本勝利; 飯村耕介; B. N. Thuy
埼玉大学工学部紀要, Volume：42, First page：46, Last page：47, 2009
This paper reports the research project on estimating effects of the combination of coastal forest and embankment on tsunami reduction, and effects of open gap of coastal forest on tsunami current. The tsunami reduction becomes largest when the embankment is arranged at back of coastal forest. For the open gap, the wave peak and the run-up height increase monotonously when the gap is increased. However, the velocity at gap has a peak value with changing open-gap and forest ratio. At the forest edge, the potential tsunami force is increased by the increase of flow velocity. The papers of these results are introduced in this manuscript.
Japanese
CiNii Articles ID：120005386065 - 海岸樹林による津波減災効果の評価式の構築
飯村耕介; 田中規夫; 谷本勝利; 田中茂信
海岸工学論文集, Volume：56, Number：1, First page：366, Last page：370, 2009
There are many types of coastal vegetation. However, the systematical method for evaluating the tsunami mitigation effect by coastal vegetation has not been established yet. Therefore, this study systematically analyzes the equations for tsunami through coastal vegetation and evaluates the vegetation effect on the tsunami run-up height and fluid force. The tsunami mitigation effects are investigated by numerical simulation based on non-linear long wave equations. When using dNall , cumulative vegetation length in streamwise direction that includes the effect of different vegetation stand structures, the evaluation of the tsunami mitigation effect has been enabled. The tsunami mitigation effect and dNall show high correlation, and evaluation equations for tsunami mitigation effect by coastal vegetation are given by exponential functions.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/kaigan.65.366
DOI ID：10.2208/kaigan.65.366, ISSN：1884-2399, CiNii Articles ID：130004956306 - 海岸樹林端部付近における津波の流れ－実験と数値計算－
谷本勝利; 田中規夫; Nguyen Ba Thuy; 飯村耕介; 原田賢治
海岸工学論文集, Volume：56, Number：1, First page：361, Last page：365, 2009
In the present study, laboratory experiments have been carried out to confirm the applicability of numerical method based on two-dimensional non-linear long wave equations incorporated with drag resistance of trees and eddy viscosity forces to tsunami flow around the edge of coastal forest. Then the method has been applied to a prototype scale condition to investigate tsunami flow around edge of coastal forest of Pandanus odoratissimus. The flow velocity outside and around the edge of coastal forest is increased, consequently the potential tsunami force is considerably increased there. On the other hand, the moment due to drag force at the top of aerial root of P. odoratissimus near the edge of the forest is decreased significantly to reduce the risk of breaking as the forest width increases.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/kaigan.65.361
DOI ID：10.2208/kaigan.65.361, ISSN：1884-2399, CiNii Articles ID：130004956305 - 海岸堤防と海岸樹林の組み合わせによる津波減災効果に関する数値計算
飯村耕介; 田中規夫; 原田賢治; 谷本勝利
海洋開発論文集, Volume：25, First page：69, Last page：74, 2009 - 砂礫州上樹木の破壊形態の相違を考慮した樹林化判定手法に関する研究
八木澤順治; 田中規夫; 福岡捷二
河川技術論文集, Volume：15, First page：153, Last page：158, 2009 - Adsorption Mechanism of Cr(VI) onto Coir Pith
Madhubhashini Makehelwala; K. B. S. N. Jinadasa; Norio Tanaka; Rohan Weerasoriya; Athula Bandara
BIOREMEDIATION JOURNAL, Volume：13, Number：4, First page：188, Last page：197, 2009
English
DOI：https://doi.org/10.1080/10889860903347302
DOI ID：10.1080/10889860903347302, ISSN：1088-9868, Web of Science ID：WOS:000272198900004 - Effects of windbreak width in wind direction on wind velocity reduction
Mulati Yusaiyin; Norio Tanaka
Journal of Forestry Research, Volume：20, Number：3, First page：199, Last page：204, 2009
English
DOI：https://doi.org/10.1007/s11676-009-0039-6
DOI ID：10.1007/s11676-009-0039-6, ISSN：1007-662X, SCOPUS ID：70350055071 - Impacts of plant (Egeria densa) density and influent composition on nitrogen transformation mechanisms in submerged plant wetland systems
Weragoda, S.K; Tanaka, N; Sasaki, Y; Jinadasa; K.B.S.N
J. Freshwater Ecology, OIKOS, Volume：24, Number：3, First page：393, Last page：401, 2009 - Impact of influent inorganic nitrogen on nitrate removal efficiency of submerged plant microcosms
S. K. Weragoda; Norio Tanaka; K. B. S. N. Jinadasa; Yasushi Sasaki
CHEMISTRY AND ECOLOGY, Volume：25, Number：3, First page：179, Last page：188, 2009
English
DOI：https://doi.org/10.1080/02757540902922703
DOI ID：10.1080/02757540902922703, ISSN：0275-7540, Web of Science ID：WOS:000274352200003 - Developing effective vegetation bioshield for tsunami protection
N. Tanaka; N. A. K. Nandasena; K. B. S. N. Jinadasa; Y. Sasaki; K. Tanimoto; M. I. M. Mowjood
CIVIL ENGINEERING AND ENVIRONMENTAL SYSTEMS, Volume：26, Number：2, First page：163, Last page：180, 2009
English
DOI：https://doi.org/10.1080/10286600802435850
DOI ID：10.1080/10286600802435850, ISSN：1028-6608, CiNii Articles ID：10025895626, Web of Science ID：WOS:000265452400006 - Investigations on Tsunami Inundation and Coastal Vegetation Characteristics
Nandasena N. A. K; Tanaka N; Tanimoto K; Bandara R; P. S. S; Ratnasooriya A. H. R; Samarawickkrama S. P; Hettiarachchi S. S. L
Proceedings of Third International Conference in Ocean Engineering (ICOE 2009), First page：1118, Last page：1128, 2009 - 砂礫州上樹木の破壊・流失条件と樹林化判定指標について
平成２０年度 技術講習会「エコロジーと自然再生」, 2009 - 津波に対する樹木の影響評価、In:岡田穣(2008)海岸林の津波被害軽減効果に関する研究成果報告会-文部科学省科学研究費補助金（基盤研究(A)海外）「インド洋大津波に対する海岸林の効果の検証と今後の海岸息保全のあり方」
田中規夫
日本海岸林学会誌, Volume：(3), Number：3, First page：39, Last page：46, 2009
Japanese
ISSN：1347-6289, CiNii Articles ID：40016584330 - 砂礫州上における繁茂場所の相違が樹木の洪水時流失限界に及ぼす影響
田中規夫; 八木澤順治; 福岡捷二
水工学論文集, Volume：53, First page：631, Last page：636, 2009 - 河道内植生の洪水による破壊・再生を考慮した植生動態モデルの開発
八木澤順治; 田中規夫
水工学論文集, Volume：53, First page：1171, Last page：1176, 2009 - 護床ブロックの洪水に対する安定条件に関する研究
井上浩一; 田中規夫; 八木澤順治
水工学論文集, Volume：53, First page：961, Last page：966, 2009 - TSUNAMI CURRENT INUNDATION OF GROUND WITH COASTAL VEGETATION EFFECTS; AN INITIAL STEP TOWARDS A NATURAL SOLUTION FOR TSUNAMI AMELIORATION
N. A. K. Nandasena; Norio Tanaka; Katsutoshi Tanimoto
JOURNAL OF EARTHQUAKE AND TSUNAMI, Volume：2, Number：2, First page：157, Last page：171, Jun. 2008
English
DOI：https://doi.org/10.1142/S179343110800030X
DOI ID：10.1142/S179343110800030X, ISSN：1793-4311, Web of Science ID：WOS:000262137900004 - Effect of water level fluctuations on nitrogen removal and plant growth performance in vertical subsurface-flow wetland mesocosms
S. Sasikala; Norio Tanaka; K. B. S. N. Jinadasa
JOURNAL OF FRESHWATER ECOLOGY, Volume：23, Number：1, First page：101, Last page：112, Mar. 2008
English
ISSN：0270-5060, Web of Science ID：WOS:000253388900010 - スリランカ南部海岸線における海岸林機能再生に向けた国際共同研究
田中規夫
First page：102, Last page：104, 2008 - 津波に対する樹木の影響評価
田中 規夫
2008 - LEE (Landscape and Ecological Engineering) 3巻2号の紹介、「根茎植物であるヨシ(Phragmites australis)とオギ(Miscanthus sacchariflorus)の2種が群落において刈り取りや屈曲によって受ける影響
Shamal Chandra Das; 田中規夫
Volume：33, Number：4, First page：623, 2008 - LEE (Landscape and Ecological Engineering) 3巻2号の紹介、「異なる成長期に刈り取った後に再生したシュートの生産力と窒素含有量により評価したヒメガマ(Typha angustifolia)の窒素収支
Shamal Chandra Das; 田中規夫
Volume：33, Number：4, First page：621, 2008 - Investigation Team of Japan Society of Civil Engineering
First page：79, 2008 - Modeling Approach on Studying the Effect of Water Level Fluctuation on Belowground Oxygen Dynamics in Wetland Mesocosms
Weragoda, S.K; Tran Huyen Trang; Sasikala S; Jinadasa; K.B.S.N; Tanaka, N; Sasaki, Y
Volume：13, First page：1, Last page：10, 2008 - Effect of Coastal and River Forests on Tsunami Run-up in River
TANIMOTO Katsutoshi; TANAKA Norio; THUY N. B.; IIMURA Kosuke
Doboku Gakkai Ronbunshuu B, Volume：55, First page：226, Last page：230, 2008
The effect of coastal and river forests on tsunami run-up in a river has been investigated by numerical simulations basedon two-dimensional non-linear long wave equations. A simple coastal and river topography is considered where theriver course is straight and perpendicular to the shore line. The coastal forest zone consists of Rhizophora apiculata woods of 200m wide in the offshore side from the shore line at high tide and Pandanus odoratissimus woods of 100mwide on the backshore. In the river, Rhizophora apiculata woods of 1000m long are placed on the high water channelnear the river mouth. The results of numerical simulations with and without forests suggest the possibility that the coastaland river forests can reduce the run-up not only on the coast but also in the river.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/proce1989.55.226
DOI ID：10.2208/proce1989.55.226, ISSN：0916-7897, CiNii Articles ID：130003992236, CiNii Books ID：AN10369955 - :INVESTIGATION BY 2-DIMENSIONAL NUMERICAL SIMULATIONS
TANIMOTO Katsutoshi; TANAKA Norio; THUY N.B.; NANDASENA N.A.K.; IIMURA Kosuke
Doboku Gakkai Ronbunshuu B, Volume：24, First page：87, Last page：92, 2008
Numerical simulations of tsunami run-up have been carried out to investigate the effect of open gap in a coastal forest zone parallel to the shoreline. First, a straight open gap perpendicular to the shoreline is considered and the gap width is changed. As the gap width increases, the current velocity at the end of the open gap increases first, reaches to the maximum and then decreases, while the run-up height increases monotonously. The maximum velocity is 1.8 times comparing with the velocity without the coastal forest at the opening ratio of 0.075. This is mainly due to the effect of in-flow from the both sides of the open gap. Next, for the condition of the opening ratio with 0.075 the effects of an open gap parallel to the shoreline in the forest and a zigzag arrangement of the open gap are investigated. It is concluded that the effect of those difference in the arrangement is not large on the run-up height.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/prooe.24.87
DOI ID：10.2208/prooe.24.87, ISSN：0912-7348, CiNii Articles ID：80019685325 - 砂礫州上に繁茂する植生の洪水時流失限界評価
八木澤順治; 田中規夫; 福岡捷二
Volume：14, First page：139, Last page：144, 2008 - EFFECT OF SEDIMENT TRANSPORTATION INTO ARTIFICIAL EMBAYMENT BY TIDAL AND FLOOD FLOW ON EVIRONMENT OF EMBAYMENT
YUTANI Kentaro; UCHIDA Tetsuo; SASAKI Yasushi; TANAKA Norio
PROCEEDINGS OF HYDRAULIC ENGINEERING, Volume：52, First page：697, Last page：702, 2008
The effect of sediment transportation into the artificial embayment by tidal and flood flow on the environment of embayment is considered. Changing of flow velocity and water depth by tidal event, and depth of accumulated sediment by flood event were investigated. It is thought that accumulated sediments in the embayment are transported by tidal flow, and accumulation of silt leads sediment of embayment to the anaerobic condition. Direct inflow of sediment in flood can be prevented with good devised configuration of the embayment and appropriate arrangement of vegetation.
On the embayment in tidal area, there is some possibility that effect of daily tidal flow on ecoenvironment is larger than that of irregular flood event.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.52.697
DOI ID：10.2208/prohe.52.697, ISSN：0916-7374, eISSN：1884-9172, CiNii Articles ID：130004044096 - 旧川の持つ治水機能について(講演)
田中規夫
First page：15, 2008 - 河道内樹木の洪水破壊形態と破壊限界値の基盤土壌条件による相違
田中規夫; 八木澤順治; 佐々木寧; 福岡捷二
Volume：52, First page：649, Last page：654, 2008
DOI：https://doi.org/10.2208/prohe.52.649
DOI ID：10.2208/prohe.52.649 - Perspective of coastal Vegetation patches with topography variations for tsunami protection in 2D numerical modeling
Nandasena; N. A. K; Tanaka, N; Tanimoto, K
Volume：JSCE, Number：52, First page：133, Last page：138, 2008
DOI：https://doi.org/10.2208/prohe.52.133
DOI ID：10.2208/prohe.52.133 - Evaluation of tsunami defense effects by coastal tree species on tsunami run-up height and current velocity reduction
Iimura, K; Tanaka, N
First page：9, Last page：14, 2008 - Effect of coconut coir-pith supplement on nitrogen and phosphate removal in subsurface flow wetland microcosms
Norio Tanaka; A. K. Karunarathna; K. B. S. N. Jindasa
CHEMISTRY AND ECOLOGY, Volume：24, Number：1, First page：15, Last page：22, 2008
English
DOI：https://doi.org/10.1080/02757540701822401
DOI ID：10.1080/02757540701822401, ISSN：0275-7540, Web of Science ID：WOS:000253335500002 - Differences of tree-breaking pattern and its moment at river floods and two tsunamis under different substrate condition, Development of sustainable infrastructures in Asia
Tanaka, N; Yagisawa, J
First page：1, Last page：8, 2008 - 2007年バングラデシュ・サイクロンSIDR高潮水害調査報告書
土木学会バングラデシュ水害調査に対する災害緊急調査団
First page：86, 2008 - スリランカ南部海岸線における海岸林機能再生に向けた国際共同研究
田中規夫
国際学術研究助成研究成果報告書（平成17-19年度）, First page：102, Last page：104, 2008 - 津波に対する樹木の影響評価
田中 規夫
海岸林の津波被害軽減効果に関する科研費成果報告会「インド洋大津波に対する海岸林の効果の検証と今後の海岸域の保全のあり方」 : 講演資料, 2008 - LEE (Landscape and Ecological Engineering) 3巻2号の紹介、「根茎植物であるヨシ(Phragmites australis)とオギ(Miscanthus sacchariflorus)の2種が群落において刈り取りや屈曲によって受ける影響
Shamal Chandra Das; 田中規夫
日本緑化工学会誌, Volume：33, Number：4, First page：623, 2008 - LEE (Landscape and Ecological Engineering) 3巻2号の紹介、「異なる成長期に刈り取った後に再生したシュートの生産力と窒素含有量により評価したヒメガマ(Typha angustifolia)の窒素収支
Shamal Chandra Das; 田中規夫
日本緑化工学会誌, Volume：33, Number：4, First page：621, 2008 - Investigation Team of Japan Society of Civil Engineering
Investigation Report on the Storm Surge Disaster by Cyclone SIDR in 2007, Bangladesh, First page：79, 2008 - Modeling Approach on Studying the Effect of Water Level Fluctuation on Belowground Oxygen Dynamics in Wetland Mesocosms
Weragoda, S.K; Tran Huyen Trang; Sasikala S; Jinadasa; K.B.S.N; Tanaka, N; Sasaki, Y
KKU Journal, Volume：13, First page：1, Last page：10, 2008 - 津波の河川遡上へ及ぼす海岸および河道内樹林の影響
谷本勝利; 田中規夫; N. B. THUY; 飯村耕介
海岸工学論文集, Volume：55, First page：226, Last page：230, 2008
The effect of coastal and river forests on tsunami run-up in a river has been investigated by numerical simulations basedon two-dimensional non-linear long wave equations. A simple coastal and river topography is considered where theriver course is straight and perpendicular to the shore line. The coastal forest zone consists of Rhizophora apiculata woods of 200m wide in the offshore side from the shore line at high tide and Pandanus odoratissimus woods of 100mwide on the backshore. In the river, Rhizophora apiculata woods of 1000m long are placed on the high water channelnear the river mouth. The results of numerical simulations with and without forests suggest the possibility that the coastaland river forests can reduce the run-up not only on the coast but also in the river.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/proce1989.55.226
DOI ID：10.2208/proce1989.55.226, ISSN：0916-7897, CiNii Articles ID：130003992236, CiNii Books ID：AN10369955 - 津波遡上に対する海岸樹林内通路の影響 ２次元数値計算による検討
谷本勝利; 田中規夫; N. B. Thuy; N. A. K. Nandasena; 飯村耕介
海洋開発論文集, Volume：24, First page：87, Last page：92, 2008
Numerical simulations of tsunami run-up have been carried out to investigate the effect of open gap in a coastal forest zone parallel to the shoreline. First, a straight open gap perpendicular to the shoreline is considered and the gap width is changed. As the gap width increases, the current velocity at the end of the open gap increases first, reaches to the maximum and then decreases, while the run-up height increases monotonously. The maximum velocity is 1.8 times comparing with the velocity without the coastal forest at the opening ratio of 0.075. This is mainly due to the effect of in-flow from the both sides of the open gap. Next, for the condition of the opening ratio with 0.075 the effects of an open gap parallel to the shoreline in the forest and a zigzag arrangement of the open gap are investigated. It is concluded that the effect of those difference in the arrangement is not large on the run-up height.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/prooe.24.87
DOI ID：10.2208/prooe.24.87, ISSN：0912-7348, CiNii Articles ID：80019685325 - 砂礫州上に繁茂する植生の洪水時流失限界評価
八木澤順治; 田中規夫; 福岡捷二
河川技術論文集, Volume：14, First page：139, Last page：144, 2008 - Impact of harvesting on constructed wetlands performance - a comparison between Scirpus grossus and Typha angustifolia
K. B. S. N. Jinadasa; N. Tanaka; S. Sasikala; D. R. I. B. Werellagama; M. I. M. Mowjood; W. J. Ng
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, Volume：43, Number：6, First page：664, Last page：671, 2008
English
DOI：https://doi.org/10.1080/10934520801893808
DOI ID：10.1080/10934520801893808, ISSN：1093-4529, CiNii Articles ID：80019548585, PubMed ID：18393076, Web of Science ID：WOS:000254869600013 - 潮汐流および洪水流による人工ワンドへの土砂流入と環境への影響
湯谷賢太郎; 内田哲夫; 佐々木寧; 田中規夫
水工学論文集, Volume：52, First page：697, Last page：702, 2008
The effect of sediment transportation into the artificial embayment by tidal and flood flow on the environment of embayment is considered. Changing of flow velocity and water depth by tidal event, and depth of accumulated sediment by flood event were investigated. It is thought that accumulated sediments in the embayment are transported by tidal flow, and accumulation of silt leads sediment of embayment to the anaerobic condition. Direct inflow of sediment in flood can be prevented with good devised configuration of the embayment and appropriate arrangement of vegetation.
On the embayment in tidal area, there is some possibility that effect of daily tidal flow on ecoenvironment is larger than that of irregular flood event.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.52.697
DOI ID：10.2208/prohe.52.697, ISSN：0916-7374, eISSN：1884-9172, CiNii Articles ID：130004044096 - 旧川の持つ治水機能について(講演)
田中規夫
東久留米市立中央図書館, First page：15, 2008 - 河道内樹木の洪水破壊形態と破壊限界値の基盤土壌条件による相違
田中規夫; 八木澤順治; 佐々木寧; 福岡捷二
水工学論文集, Volume：52, First page：649, Last page：654, 2008
DOI：https://doi.org/10.2208/prohe.52.649
DOI ID：10.2208/prohe.52.649 - Perspective of coastal Vegetation patches with topography variations for tsunami protection in 2D numerical modeling
Nandasena; N. A. K; Tanaka, N; Tanimoto, K
Annual Journal of Hydraulic Engineering, Volume：JSCE, Number：52, First page：133, Last page：138, 2008
DOI：https://doi.org/10.2208/prohe.52.133
DOI ID：10.2208/prohe.52.133 - Evaluation of tsunami defense effects by coastal tree species on tsunami run-up height and current velocity reduction
Iimura, K; Tanaka, N
Development of sustainable infrastructures in Asia, First page：9, Last page：14, 2008 - Effect of coconut coir-pith supplement on nitrogen and phosphate removal in subsurface flow wetland microcosms
Norio Tanaka; A. K. Karunarathna; K. B. S. N. Jindasa
CHEMISTRY AND ECOLOGY, Volume：24, Number：1, First page：15, Last page：22, 2008
English
DOI：https://doi.org/10.1080/02757540701822401
DOI ID：10.1080/02757540701822401, ISSN：0275-7540, Web of Science ID：WOS:000253335500002 - Differences of tree-breaking pattern and its moment at river floods and two tsunamis under different substrate condition, Development of sustainable infrastructures in Asia
Tanaka, N; Yagisawa, J
Proceedings of International collaborative graduate symposium between Saitama University, Japan and University of Moratuwa, Sri Lanka, First page：1, Last page：8, 2008 - 2007年バングラデシュ・サイクロンSIDR高潮水害調査報告書
土木学会バングラデシュ水害調査に対する災害緊急調査団
土木学会海岸工学委員会・水工学委員会・社会支援部門調査支援対策本部, First page：86, 2008 - The effects of breaking or bending the stems of two rhizomatous plants, Phragmites australis and Miscanthus sacchariflorus, on their communities
Shamal Chandra Das; Norio Tanaka
Landscape and Ecological Engineering, Volume：3, Number：2, First page：131, Last page：141, Nov. 2007
English
DOI：https://doi.org/10.1007/s11355-007-0028-x
DOI ID：10.1007/s11355-007-0028-x, ISSN：1860-1871, SCOPUS ID：35548954712 - The effects of breaking or bending the stems of two rhizomatous plants, Phragmites australis and Miscanthus sacchariflorus, on their communities
Shamal Chandra Das; Norio Tanaka
Landscape and Ecological Engineering, Volume：3, Number：2, First page：131, Last page：141, Nov. 2007
English
DOI：https://doi.org/10.1007/s11355-007-0028-x
DOI ID：10.1007/s11355-007-0028-x, ISSN：1860-1871, SCOPUS ID：35548954712 - Estimating nitrogen budgets of Typha angustifolia by considering the regrowth shoot productivity and nitrogen content after harvesting aerial organs in different growing seasons
Shamal Chandra Das; Norio Tanaka
Landscape and Ecological Engineering, Volume：3, Number：2, First page：99, Last page：108, Nov. 2007
English
DOI：https://doi.org/10.1007/s11355-007-0024-1
DOI ID：10.1007/s11355-007-0024-1, ISSN：1860-1871, SCOPUS ID：35548943624 - Flow structures and drag characteristics of a colony-type emergent roughness model mounted on a flat plate in uniform flow
Takeshi Takemura; Norio Tanaka
Fluid Dynamics Research, Volume：39, Number：9-10, First page：694, Last page：710, 10 Oct. 2007
English
DOI：https://doi.org/10.1016/j.fluiddyn.2007.06.001
DOI ID：10.1016/j.fluiddyn.2007.06.001, ISSN：0169-5983, CiNii Articles ID：120001370589, SCOPUS ID：34548321753 - Flow structures and drag characteristics of a colony-type emergent roughness model mounted on a flat plate in uniform flow
Takeshi Takemura; Norio Tanaka
Fluid Dynamics Research, Volume：39, Number：9-10, First page：694, Last page：710, 10 Oct. 2007
English
DOI：https://doi.org/10.1016/j.fluiddyn.2007.06.001
DOI ID：10.1016/j.fluiddyn.2007.06.001, ISSN：0169-5983, CiNii Articles ID：10021167623, SCOPUS ID：34548321753 - Flow structures and drag characteristics of a colony-type emergent roughness model mounted on a flat plate in uniform flow
Takeshi Takemura; Norio Tanaka
FLUID DYNAMICS RESEARCH, Volume：39, Number：9-10, First page：694, Last page：710, Sep. 2007
English
DOI：https://doi.org/10.1016/j.fluiddyn.2007.06.001
DOI ID：10.1016/j.fluiddyn.2007.06.001, ISSN：0169-5983, eISSN：1873-7005, CiNii Articles ID：120001370589, Web of Science ID：WOS:000249941200003 - Flow structures and drag characteristics of a colony-type emergent roughness model mounted on a flat plate in uniform flow
Takeshi Takemura; Norio Tanaka
FLUID DYNAMICS RESEARCH, Volume：39, Number：9-10, First page：694, Last page：710, Sep. 2007
English
DOI：https://doi.org/10.1016/j.fluiddyn.2007.06.001
DOI ID：10.1016/j.fluiddyn.2007.06.001, ISSN：0169-5983, eISSN：1873-7005, CiNii Articles ID：10021167623, Web of Science ID：WOS:000249941200003 - Effect of broken dead culms of Phragmites australis on radial oxygen loss in relation to radiation and temperature
Norio Tanaka; Kentaro Yutani; Thidar Aye; K. B. S. N. Jinadasa
HYDROBIOLOGIA, Volume：583, First page：165, Last page：172, Jun. 2007
English
DOI：https://doi.org/10.1007/s10750-006-0483-7
DOI ID：10.1007/s10750-006-0483-7, ISSN：0018-8158, Web of Science ID：WOS:000245358700012 - Coastal vegetation structures and their functions in tsunami protection: Experience of the recent Indian Ocean tsunami
Norio Tanaka; Yasushi Sasaki; M. I.M. Mowjood; K. B.S.N. Jinadasa; Samang Homchuen
Landscape and Ecological Engineering, Volume：3, Number：1, First page：33, Last page：45, May 2007
English
DOI：https://doi.org/10.1007/s11355-006-0013-9
DOI ID：10.1007/s11355-006-0013-9, ISSN：1860-1871, SCOPUS ID：34247203693 - 海岸林を再生・活用するランドスケープ研究
田中 規夫
2007 - Experimental study on flow structures and drag characteristics of colony-type roughness models considering roughness density and relative height to water depth
Shiho ITO; Norio TANAKA
Volume：New technologies for infrastructure development and protection, First page：166, Last page：173, 2007 - CHANGE OF THRESHOLD VELOCITY FOR GRAVEL MOVEMENT BY RUNNER EXPANSION AND GROWTH OF Phragmites japonica ON A GRAVEL BAR : MODELING APPROACH
TANAKA Norio; YAGISAWA Junji; OGAWA Tomohiro
Doboku Gakkai Ronbunshuu B, Volume：51, Number：1, First page：1255, Last page：1260, 2007
he effect of flood disturbance on the morphology of runners, plant productivity and runner-expansion characteristics of Pharagmites japonica was investigated at midstream of the Arakawa River. The dynamic growth model of P. japonica was developed considering the effect of disturbance, i. e., the difference of runner morphology and shoot productivity in the parent colony. The aboveground biomass distribution along the distance from the parent colony was well represented by the model. For analyzing the effect of flood disturbance interval, maximum water levels at three flood events were calculated and evaluated whether the habitat of P. japonica were inundated or not. In addition, the threshold friction velocity of the average grain diameter was compared with the friction velocity at the flood event. Although the gravel movement possibility has a little different tendency with the damaged situation of P. japonica, the clear relationship between the flood interval and the productivity in each habitat is found. The analysis indicates the possibility to calculate the plant productivity under the effect of flood disturbance.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/prohe.51.1255
DOI ID：10.2208/prohe.51.1255, ISSN：0912-2508, CiNii Articles ID：10021137809, CiNii Books ID：AA1045915X - 2006年ジャワ津波災害において海岸林が果たした役割とその破断・なぎ倒し限界
田中規夫; 佐々木寧
Volume：51, First page：1445, Last page：1450, 2007
DOI：https://doi.org/10.2208/prohe.51.1445
DOI ID：10.2208/prohe.51.1445 - シナダレスズメガヤの繁茂量の違いを考慮した土砂移動限界の変化および洪水時流失条件の評価
八木澤順治; 田中規夫
Volume：51, First page：1249, Last page：1254, 2007
DOI：https://doi.org/10.2208/prohe.51.1249
DOI ID：10.2208/prohe.51.1249 - A NEW DERIVATION OF HORIZONTAL TWO DIMENSIONAL DEPTH AVERAGED MOMENTUM EQUATION AND CONTINUITY EQUATION, WHICH INCLUDE TOTAL EFFECT OF POROSITY INSIDE THE VEGETATION
NANDASENA N. A. K.; TANAKA Norio; TAKAGI Toshimitsu
Doboku Gakkai Ronbunshuu B, Volume：51, First page：163, Last page：168, 2007
Porosity effects on the hydrodynamic equations are minimal in comparison with other resistance forces like drag and inertia that generated by water flow through vegetation in case of sparsely grown forests. However, in case of densely grown vegetation that have lowest porosity (high blockage) can impose considerable effects on final outcomes. Horizontal two-dimensional depth averaged momentum and continuity equations were derived in first principles with porosity enhancement and it was noticed that new derivations showed considerable contrast with early practiced equations. Two-dimensional numerical simulations were employed to show difference between the results of new and previous equations. It was found that, newly derived equations predicted maximum current velocity was higher than previous equations, maximum water depth was less than previous equations at mid and front of the forest, but maximum water depth was higher than previous equations at behind the forest.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/prohe.51.163
DOI ID：10.2208/prohe.51.163, ISSN：0916-7374, CiNii Articles ID：130003842437 - 防災バイオシールドとしての海岸林の構築、維持管理、運用：スリランカを事例として(招待講演)
田中 規夫
Volume：第4回エネルギー環境科学公開シンポジウム, First page：19, Last page：22, 2007 - Numerical Simulation of Tsunami Prevention by Coastal Forest with Several Species of Tropical Tree
TANIMOTO Katsutoshi; TANAKA Norio; Nandasena N. A. K.; IIMURA Kosuke; SHIMIZU Takashi
Doboku Gakkai Ronbunshuu B, Volume：54, First page：1381, Last page：1385, 2007
Tsunami prevention effects of coastal forest with several species of tropical tree have been investigated by one dimensional numerical simulation based on the non-linear long wave equations. The effects vary greatly with the species, the wood size and their combination. It is found that a coastal forest system consisting of 100m wide Rhizaphora apiculata woods in the water from the shoreline on the bottom of 1/200 slope, 50m wide mixed woods of Pandanus odoratissimum and Casuarina equisentifolia, and 50m wide Pandanus odoratissimum woods on the land of 1/100 slope can reduce the run-up height from 6.3m to 4.7m and the tsunami force at the end of forest from 14kN/m to 3.3 kN/m for a tsunami of 15 minutes in the period. The tsunami height at the shore line in case of no forest is about 5m.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/proce1989.54.1381
DOI ID：10.2208/proce1989.54.1381, ISSN：0916-7897, CiNii Articles ID：130003808005 - 洪水撹乱影響を受ける砂礫州における多年生草本の動態評価手法の開発と適正な草本管理方針の作成(平成19年度前田工学賞授賞式)
田中規夫
First page：66, Last page：69, 2007 - 河道内樹木の洪水撹乱規模と樹齢による破壊限界変化
田中規夫; 八木澤順治; 青木信哉; 福岡捷二
Volume：13, First page：177, Last page：182, 2007 - 河口付近の海岸・河岸における樹林帯の津波遡上防止機能を評価する高精度な河川内津波遡上モデルの開発
谷本勝利; 田中規夫; 佐々木寧; 湯谷賢太郎
2007 - インド洋大津波とジャワ津波に見る海岸林の津波減災効果
田中 規夫
Volume：講演概要集, First page：「津波減災にむけて」, 2007 - インドネシアジャワ島の南西沖地震津波災害調査(速報)
佐々木 寧; 田中 規夫
Volume：40, First page：42, Last page：50, 2007 - The role of coastal vegetation in case of the Indian Ocean tsunami-Coastal area of Thailand and Sri Lanka-
SASAKI Y.
Mangrove Science, Volume：4/5, Number：5, First page：49, Last page：55, 2007
CiNii Articles ID：10025895627 - Sustainable coastal vegetation-based landscaping: Its role for tsunami protection in Sri Lanka
Tanaka, N; Mowjood; M.I.M; Werellagama; D.R.I.B; Jinadasa; K.B.S.N; Y. Sasaki
Volume：CDROM, 2007 - Numerical simulation of wind flow around single and double arranged windbreaks
Mulati Yusaiyin; Tanaka, N; Takagi, T
Volume：Proc. 9th Int., First page：107, Last page：110, 2007 - Limitations of coastal vegetation in the 2004 Indian Ocean tsunami and 2006 Java tsunami
Norio Tanaka; Yasushi Sasaki
Volume：32nd, First page：Congress, 2007 - Establishment of sustainable coastal vegetation Experiences from Sri Lanka
K.B.S.N.Jinadasa; Tanaka, N; Sasaki, Y; Mowjood; M.I.M; Werellagama; D.R.I
Volume：Proc. 9th Int., First page：303, Last page：306, 2007 - Effect of water level fluctuations on nitrogen removal and plant growth in a vertical subsurface flow wetland mesocosms
Sasikala, S; Tanaka,N; Yutani,K; Jinadasa KBSN
Volume：Proc. 9th Int., First page：291, Last page：294, 2007 - Effect of Water Level Fluctuation on Radial Oxygen Loss(ROL) of Typha orientalis in a vertical flow wetland mesocosms
Wah Wah; Han Su Yin; Tanaka, N; Yutani, K; S Sasikala
Volume：Proc. 9th Int., First page：295, Last page：298, 2007 - Change of threshold velocity for gravel movement by runner expansion and growth of Phragmites japonica on a gravel bar: Modeling approach
Tanaka, N; Yagisawa, J; Ogawa, T
Volume：25, Number：1, First page：1, Last page：10, 2007 - Capability of coastal vegetation species dominant in Asian region to retardate the tsunami impact.
Nandasena; N. A. K; Tanaka, N; Tanimoto, K
Volume：Proc. 9th Int., First page：115, Last page：118, 2007 - Calculating Nitrogen Removal Efficiency with One Dimensional Nitrogen Budget Model on the Reed-Wetland Soil System
Yutani, K; N. Tanaka
Volume：55, Number：1/2, First page：129 138, 2007
DOI：https://doi.org/10.2166/wst.2007.031
DOI ID：10.2166/wst.2007.031 - Bio-shield in Coastal and Aquatic Environment, Environmentally Sustainable Infrastructure Development in Asia
Tanaka, N
2007 - Ammonium adsorption capacity of sand in constructed wetland mesocosms
T.H. Trang; Tanaka, N; Yutani, K; Sasikala S
Volume：Proc. 9th Int., First page：299, Last page：302, 2007 - 海岸林を再生・活用するランドスケープ研究
田中 規夫
総合研究機構研究プロジェクト成果発表会 : ポスター展示, 2007 - Experimental study on flow structures and drag characteristics of colony-type roughness models considering roughness density and relative height to water depth
Shiho ITO; Norio TANAKA
Proceedings of the joint seminar organized by School of Civil Engineering & Technology, Sirindhorn International Institute of Technology, Thammasat University, Thailand and Department of Civil & Environmental Engineering, Saitama University, Japan, Volume：New technologies for infrastructure development and protection, First page：166, Last page：173, 2007 - 洪水攪乱影響の違いがツルヨシの形態的特徴と繁茂量・拡大幅に与える影響
青木信哉; 田中規夫; 八木澤順治
水工学論文集, Volume：51, Number：1, First page：1255, Last page：1260, 2007
he effect of flood disturbance on the morphology of runners, plant productivity and runner-expansion characteristics of Pharagmites japonica was investigated at midstream of the Arakawa River. The dynamic growth model of P. japonica was developed considering the effect of disturbance, i. e., the difference of runner morphology and shoot productivity in the parent colony. The aboveground biomass distribution along the distance from the parent colony was well represented by the model. For analyzing the effect of flood disturbance interval, maximum water levels at three flood events were calculated and evaluated whether the habitat of P. japonica were inundated or not. In addition, the threshold friction velocity of the average grain diameter was compared with the friction velocity at the flood event. Although the gravel movement possibility has a little different tendency with the damaged situation of P. japonica, the clear relationship between the flood interval and the productivity in each habitat is found. The analysis indicates the possibility to calculate the plant productivity under the effect of flood disturbance.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/prohe.51.1255
DOI ID：10.2208/prohe.51.1255, ISSN：0912-2508, CiNii Articles ID：10021137809, CiNii Books ID：AA1045915X - 2006年ジャワ津波災害において海岸林が果たした役割とその破断・なぎ倒し限界
田中規夫; 佐々木寧
水工学論文集, Volume：51, First page：1445, Last page：1450, 2007
DOI：https://doi.org/10.2208/prohe.51.1445
DOI ID：10.2208/prohe.51.1445, CiNii Articles ID：80017872136 - シナダレスズメガヤの繁茂量の違いを考慮した土砂移動限界の変化および洪水時流失条件の評価
八木澤順治; 田中規夫
水工学論文集, Volume：51, First page：1249, Last page：1254, 2007
Field observation was conducted to elucidate the effect of Eragrostis curvula on the threshold of gravel movement at midstream of the Arakawa River. Under various hydraulic conditions (particle diameter, bed slope and water depth) and growth conditions (colony diameter and density of the plant), Shields parameter of the gravel in the plant-vegetated area was estimated using the drag characteristics of the plant and calculated friction velocity affected by the plant. Threshold of gravel movement of median grain size (d50) and d84 (84% of the grain weight) around the plants was evaluated by comparing friction velocity of the flow condition with the critical friction velocity of the diameter. The removal threshold of Eragrostis curvula was defined at which the friction velocity affected by the plant's drag is equal to the critical friction velocity of d84. The threshold condition related to HI (H: water depth, I: bed slope) and the drag by plant was validated for a flood in the Arakawa River and for two floods in the Yoshino River.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.51.1249
DOI ID：10.2208/prohe.51.1249, ISSN：0916-7374, CiNii Articles ID：130003842392 - A new derivation of two dimensional depth averaged momentum equation and continuity equation, which include total effect of porosity inside the vegetation,
Nandasena; N. A. K; Tanaka, N; Takagi, T
Annual Journal of Hydraulic Engineering, JSCE, Volume：51, First page：163, Last page：168, 2007
Porosity effects on the hydrodynamic equations are minimal in comparison with other resistance forces like drag and inertia that generated by water flow through vegetation in case of sparsely grown forests. However, in case of densely grown vegetation that have lowest porosity (high blockage) can impose considerable effects on final outcomes. Horizontal two-dimensional depth averaged momentum and continuity equations were derived in first principles with porosity enhancement and it was noticed that new derivations showed considerable contrast with early practiced equations. Two-dimensional numerical simulations were employed to show difference between the results of new and previous equations. It was found that, newly derived equations predicted maximum current velocity was higher than previous equations, maximum water depth was less than previous equations at mid and front of the forest, but maximum water depth was higher than previous equations at behind the forest.
Japan Society of Civil Engineers, English
DOI：https://doi.org/10.2208/prohe.51.163
DOI ID：10.2208/prohe.51.163, ISSN：0916-7374, CiNii Articles ID：130003842437 - 防災バイオシールドとしての海岸林の構築、維持管理、運用：スリランカを事例として(招待講演)
田中 規夫
宇都宮大学, Volume：第4回エネルギー環境科学公開シンポジウム, First page：19, Last page：22, 2007 - 種々の熱帯性海岸樹の組合せによる津波防御効果に関する数値計算
谷本勝利; 田中規夫; N. A. Kithsiri Nandasena; 飯村耕介; 清水隆
海岸工学論文集, Volume：54, First page：1381, Last page：1385, 2007
Tsunami prevention effects of coastal forest with several species of tropical tree have been investigated by one dimensional numerical simulation based on the non-linear long wave equations. The effects vary greatly with the species, the wood size and their combination. It is found that a coastal forest system consisting of 100m wide Rhizaphora apiculata woods in the water from the shoreline on the bottom of 1/200 slope, 50m wide mixed woods of Pandanus odoratissimum and Casuarina equisentifolia, and 50m wide Pandanus odoratissimum woods on the land of 1/100 slope can reduce the run-up height from 6.3m to 4.7m and the tsunami force at the end of forest from 14kN/m to 3.3 kN/m for a tsunami of 15 minutes in the period. The tsunami height at the shore line in case of no forest is about 5m.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/proce1989.54.1381
DOI ID：10.2208/proce1989.54.1381, ISSN：0916-7897, CiNii Articles ID：130003808005 - 洪水撹乱影響を受ける砂礫州における多年生草本の動態評価手法の開発と適正な草本管理方針の作成(平成19年度前田工学賞授賞式)
田中規夫
研究報告平成17年度土木分野, First page：66, Last page：69, 2007 - 河道内樹木の洪水撹乱規模と樹齢による破壊限界変化
田中規夫; 八木澤順治; 青木信哉; 福岡捷二
河川技術論文集, Volume：13, First page：177, Last page：182, 2007 - 河口付近の海岸・河岸における樹林帯の津波遡上防止機能を評価する高精度な河川内津波遡上モデルの開発
谷本勝利; 田中規夫; 佐々木寧; 湯谷賢太郎
河川整備基金助成事業報告書, 2007 - インド洋大津波とジャワ津波に見る海岸林の津波減災効果
田中 規夫
谷本勝利先生退職記念シンポジウム, Volume：講演概要集, First page：「津波減災にむけて」, 2007 - インドネシアジャワ島の南西沖地震津波災害調査(速報)
佐々木 寧; 田中 規夫
埼玉大学紀要, 工学部, 第1部論文集, Volume：40, First page：42, Last page：50, 2007
CiNii Articles ID：80019980375 - The role of coastal vegetation in case of the Indian Ocean tsunami - Coastal area of Thailand and Sri Lanka-
Sasaki, Y; Samang Homchuen; Tanaka, N
Mangrove Science, Volume：4/5, First page：49, Last page：55, 2007 - Sustainable coastal vegetation-based landscaping: Its role for tsunami protection in Sri Lanka
Tanaka, N; Mowjood; M.I.M; Werellagama; D.R.I.B; Jinadasa; K.B.S.N; Y. Sasaki
Proceeding and abstracts of International Conference on Mitigation of the Risk of Natural Hazards, Volume：CDROM, 2007 - Numerical simulation of wind flow around single and double arranged windbreaks
Mulati Yusaiyin; Tanaka, N; Takagi, T
Summer Sym., Volume：Proc. 9th Int., First page：107, Last page：110, 2007 - Limitations of coastal vegetation in the 2004 Indian Ocean tsunami and 2006 Java tsunami
Norio Tanaka; Yasushi Sasaki
IAHR, Volume：32nd, First page：Congress, 2007 - Establishment of sustainable coastal vegetation Experiences from Sri Lanka
K.B.S.N.Jinadasa; Tanaka, N; Sasaki, Y; Mowjood; M.I.M; Werellagama; D.R.I
Summer Sym., Volume：Proc. 9th Int., First page：303, Last page：306, 2007 - Effect of water level fluctuations on nitrogen removal and plant growth in a vertical subsurface flow wetland mesocosms
Sasikala, S; Tanaka,N; Yutani,K; Jinadasa KBSN
Summer Sym.,, Volume：Proc. 9th Int., First page：291, Last page：294, 2007 - Effect of Water Level Fluctuation on Radial Oxygen Loss(ROL) of Typha orientalis in a vertical flow wetland mesocosms
Wah Wah; Han Su Yin; Tanaka, N; Yutani, K; S Sasikala
Summer Sym., Volume：Proc. 9th Int., First page：295, Last page：298, 2007 - Effect of external organic matter on nutrient removal and growth of Phragmites australis in a laboratory-scale subsurface-flow treatment wetland
A. K. Karunarathna; N. Tanaka; K. B. S. N. Jinadasa
WATER SCIENCE AND TECHNOLOGY, Volume：55, Number：1-2, First page：121, Last page：128, 2007
English
DOI：https://doi.org/10.2166/wst.2007.030
DOI ID：10.2166/wst.2007.030, ISSN：0273-1223, Web of Science ID：WOS:000245786000016 - Change of threshold velocity for gravel movement by runner expansion and growth of Phragmites japonica on a gravel bar: Modeling approach
Tanaka, N; Yagisawa, J; Ogawa, T
J. of Hydroscience and Hydraulic Eng., Volume：25, Number：1, First page：1, Last page：10, 2007 - Capability of coastal vegetation species dominant in Asian region to retardate the tsunami impact.
Nandasena; N. A. K; Tanaka, N; Tanimoto, K
Summer Sym., Volume：Proc. 9th Int., First page：115, Last page：118, 2007 - Calculating nitrogen-removal efficiency with a one-dimensional nitrogen budget model of a reed-wetland soil system
K. Yutani; N. Tanaka
WATER SCIENCE AND TECHNOLOGY, Volume：55, Number：1-2, First page：129, Last page：138, 2007
English
DOI：https://doi.org/10.2166/wst.2007.031
DOI ID：10.2166/wst.2007.031, ISSN：0273-1223, Web of Science ID：WOS:000245786000017 - Bio-shield in Coastal and Aquatic Environment, Environmentally Sustainable Infrastructure Development in Asia
Tanaka, N
Proceedings of International Exchange Seminar between Saitama University, Japan & Thammasat University, Thailand, 2007 - Ammonium adsorption capacity of sand in constructed wetland mesocosms
T.H. Trang; Tanaka, N; Yutani, K; Sasikala S
Summer Sym., Volume：Proc. 9th Int., First page：299, Last page：302, 2007 - Effects of sand dune and vegetation in the coastal area of Sri Lanka at the Indian Ocean Tsunami
Norio Tanaka; Yasushi Sasaki; M. I.M. Mowjood
Advances in Geosciences: Volume 6: Hydrological Science (HS), Volume：6, First page：149, Last page：159, 01 Jan. 2007
World Scientific Publishing Co., English
DOI：https://doi.org/10.1142/9789812708915_0015
DOI ID：10.1142/9789812708915_0015, SCOPUS ID：84967495957 - Harvesting aerial shoots of Zizania latifolia at different growth stages: Effects on belowground biomass, regrowth, and rhizome morphology
Das Sharnal Chandra; Norio Tanaka
JOURNAL OF FRESHWATER ECOLOGY, Volume：21, Number：4, First page：583, Last page：591, Dec. 2006
English
ISSN：0270-5060, Web of Science ID：WOS:000242201300005 - Effectiveness of Scirpus grossus in treatment of domestic wastes in a constructed wetland
K. B. S. N. Jinadasa; Norio Tanaka; M. I. M. Mowjood; D. R. I. B. Werellagama
JOURNAL OF FRESHWATER ECOLOGY, Volume：21, Number：4, First page：603, Last page：612, Dec. 2006
English
ISSN：0270-5060, Web of Science ID：WOS:000242201300007 - Constructed tropical wetlands with integrated submergent-emergent plants for sustainable water quality management
Norio Tanaka; K. B. S. N. Jinadasa; D. R. I. B. Werellagama; M. I. M. Mowjood; W. J. Ng
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, Volume：41, Number：10, First page：2221, Last page：2236, Oct. 2006
English
DOI：https://doi.org/10.1080/10934520600867581
DOI ID：10.1080/10934520600867581, ISSN：1093-4529, CiNii Articles ID：80018908268, PubMed ID：17018409, Web of Science ID：WOS:000240965800008 - Free water surface constructed wetlands for domestic wastewater treatment: A tropical case study
K. B. S. N. Jinadasa; N. Tanaka; M. I. M. Mowjood; D. R. I. B. Werellagama
CHEMISTRY AND ECOLOGY, Volume：22, Number：3, First page：181, Last page：191, Jun. 2006
English
DOI：https://doi.org/10.1080/02757540600658849
DOI ID：10.1080/02757540600658849, ISSN：0275-7540, Web of Science ID：WOS:000240437400001 - Tsunami mitigation effects by the combination of vegetation with different tree density
Mowjood M. I. M.
Doboku Gakkai Ronbunshuu B, Volume：53, First page：281, Last page：285, 2006
スリランカ海岸林の破断モーメントを樹種, 胸高直径ごとに算定した. オオバヒルギやアダンは単位面積あたりの抗力は大きいが樹木高さの6-7割強程度で破断すること, 破断時水深が高いモクマオウは, 密度高い樹林帯の維持が重要であることがわかった. 樹木特性 (合成抵抗係数, 密度, 直径) を樹種ごとに与え数値解析を行い, 樹林帯幅と津波到達遅延時間の関係を調べた. 汀線より岸側の勾配1/100-1/1000において, アダン, モクマオウ (密) の樹林帯幅50-200mで, 到達時間はそれぞれ5-66秒, 1-22秒程度遅らせることが可能であるが, ココヤシ樹林帯は200m幅であっても3秒程度の差しか生じさせなかった.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/proce1989.53.281
DOI ID：10.2208/proce1989.53.281, ISSN：0916-7897, CiNii Articles ID：130003991951, CiNii Books ID：AA12508551 - Wind tunnel experiments on optimal wind protection fence that minimizes the spray transport to the downstream
田中 規夫; 高木 利光; 山崎 典和; 児玉 敏雄; 八木澤 順治
Volume：39, First page：66, Last page：73, 2006
For decreasing the spray flux by wave-breaking at the shoreline to the landward area, the optimal wind protection fence structure was discussed. For minimizing the salt-spray flux through the fence, the structure with two low circular or L-shaped cylinders in staggered grid arrangement was selected and wind tunnel experiments were conducted with different spacing for cross-stream and stream-wise direction. The salt spray amount settling at the fence and passing through the fence were measured. The spray volume getting through or blowing up the fence was quantified by colored water with dye. The water was sprayed with a sprayer and collected by gauzes setting at downstream points. For the subsidence volume at the bottom in downstream, a tray was put and the mass of the subsiding water was measured. Considering the loss by blowing upward of the fence, the appropriate arrangement was found as `the two rows of circular cylinders with staggered, 1D cross-stream spacing and 1D-2D stream-wise length, where D is the diameter of a circular cylinder'. This amount of the subsidence is about 90% and more than the value of previous-existed fence structure, 70%.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370426 - Investigation on the damage by Indian Ocean Tsunami at the southern coast in SriLanka in relation to the breaking moment of the tree trunk in coastal vegetation
MOWJOOD M.I.M.; JINADASA K.B.S.N.
Volume：39, First page：58, Last page：65, 2006
This study explored the effects of coastal vegetation and sand dune on tsunami protection based on field observations carried out in two periods after the Indian Ocean tsunami. First one was conducted for elucidating the relationship between the representative species and the damage, from 1 to 6 April 2005 in Sri Lanka. The second survey was conducted for investigating the breaking condition of the representative trees, from 5 to 9 January, 2006 at Kalutra, Medilla, Rekawa and Hambantota where the combination of the sand dune followed by vegetation towards landside played an important role. The breaking moment of trees were investigated for the representative trees by pulling test. The threshold value for breaking condition was derived as a function of trunk diameter. The breaking moment equation represents well in the limitation of the representative species with the tsunami height at the tsunami event considering the aerial root height. These findings have to be considered in future coastal landscape planning and tsunami hazard mapping.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370425 - 砂礫河原に繁茂する株状草本シナダレスズメガヤの土砂捕捉特性と洪水攪乱による除去条件
田中規夫; 八木澤順治; 青木信哉
Volume：12, First page：455, Last page：460, 2006 - 荒川上流域および河道平面形の変化が河床変動に与える影響
八木澤順治; 田中規夫; 竹内博輝; 玉井信行
Volume：12, First page：67, Last page：72, 2006 - 飛沫通過量を最小にする最適防風フェンス構造に関する風洞実験
田中 規夫; 高木利光; 山崎典和; 児玉 敏雄; 八木澤順治
Volume：39, First page：70, Last page：77, 2006 - スリランカ南部海岸線におけるインド洋大津波被害実態調査(その２) 海岸林の破壊限界モーメントに注目して
田中 規夫; 佐々木 寧; M.I.M. Mowjood; K.B.S.N. Jinadasa; 八木澤順治
Volume：39, First page：62, Last page：69, 2006 - Situations of the Indian Ocean Tsunami at Dec.2004 in Thailand, Sri Lanka and Maldives
Sasaki, Y; Tanaka, N
Volume：34, First page：39, Last page：52, 2006 - Effects and Limitations of the Coastal Vegetation in Sri Lanka and Thailand at the Indian Ocean Tsunami
Tanaka, N; Sasaki, Y
Volume：34, First page：7, Last page：16, 2006 - 河道内に繁茂するヒメガマTypha angustifoliaの拡大可能性分析
武村武; 田中規夫
Volume：50, First page：1189, Last page：1194, 2006 - ツルヨシのランナーによる群落拡大が土砂の移動限界に与える影響
八木澤順治; 田中規夫; 青木信哉
Volume：50, First page：1177, Last page：1182, 2006
DOI：https://doi.org/10.2208/prohe.50.1177
DOI ID：10.2208/prohe.50.1177 - リランカ海岸林の樹種による破壊条件と津波到達遅延時間の相違
田中規夫; 武村武; 佐々木寧; M.I.M. Mowjood
海岸工学論文集, Volume：53, First page：281, Last page：285, 2006
スリランカ海岸林の破断モーメントを樹種, 胸高直径ごとに算定した. オオバヒルギやアダンは単位面積あたりの抗力は大きいが樹木高さの6-7割強程度で破断すること, 破断時水深が高いモクマオウは, 密度高い樹林帯の維持が重要であることがわかった. 樹木特性 (合成抵抗係数, 密度, 直径) を樹種ごとに与え数値解析を行い, 樹林帯幅と津波到達遅延時間の関係を調べた. 汀線より岸側の勾配1/100-1/1000において, アダン, モクマオウ (密) の樹林帯幅50-200mで, 到達時間はそれぞれ5-66秒, 1-22秒程度遅らせることが可能であるが, ココヤシ樹林帯は200m幅であっても3秒程度の差しか生じさせなかった.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/proce1989.53.281
DOI ID：10.2208/proce1989.53.281, ISSN：0916-7897, CiNii Articles ID：130003991951, CiNii Books ID：AA12508551 - 飛沫通過量を最小にする最適防風フェンス構造に関する風洞実験<論文>
田中 規夫; 高木 利光; 山崎 典和; 児玉 敏雄; 八木澤 順治
埼玉大学紀要, 工学部, 第1部論文集, Volume：39, First page：66, Last page：73, 2006
For decreasing the spray flux by wave-breaking at the shoreline to the landward area, the optimal wind protection fence structure was discussed. For minimizing the salt-spray flux through the fence, the structure with two low circular or L-shaped cylinders in staggered grid arrangement was selected and wind tunnel experiments were conducted with different spacing for cross-stream and stream-wise direction. The salt spray amount settling at the fence and passing through the fence were measured. The spray volume getting through or blowing up the fence was quantified by colored water with dye. The water was sprayed with a sprayer and collected by gauzes setting at downstream points. For the subsidence volume at the bottom in downstream, a tray was put and the mass of the subsiding water was measured. Considering the loss by blowing upward of the fence, the appropriate arrangement was found as `the two rows of circular cylinders with staggered, 1D cross-stream spacing and 1D-2D stream-wise length, where D is the diameter of a circular cylinder'. This amount of the subsidence is about 90% and more than the value of previous-existed fence structure, 70%.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370426 - スリランカ南部海岸線におけるインド洋大津波被害実態調査(その２) : 海岸林の破壊限界モーメントに注目して<論文>
田中 規夫; 佐々木 寧; M.I.M; MOWJOOD; K.B.S.N; JINADASA; 八木澤 順治
埼玉大学紀要, 工学部, 第1部論文集, Volume：39, First page：58, Last page：65, 2006
This study explored the effects of coastal vegetation and sand dune on tsunami protection based on field observations carried out in two periods after the Indian Ocean tsunami. First one was conducted for elucidating the relationship between the representative species and the damage, from 1 to 6 April 2005 in Sri Lanka. The second survey was conducted for investigating the breaking condition of the representative trees, from 5 to 9 January, 2006 at Kalutra, Medilla, Rekawa and Hambantota where the combination of the sand dune followed by vegetation towards landside played an important role. The breaking moment of trees were investigated for the representative trees by pulling test. The threshold value for breaking condition was derived as a function of trunk diameter. The breaking moment equation represents well in the limitation of the representative species with the tsunami height at the tsunami event considering the aerial root height. These findings have to be considered in future coastal landscape planning and tsunami hazard mapping.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370425 - 砂礫河原に繁茂する株状草本シナダレスズメガヤの土砂捕捉特性と洪水攪乱による除去条件
田中規夫; 八木澤順治; 青木信哉
河川技術論文集, Volume：12, First page：455, Last page：460, 2006 - 荒川上流域および河道平面形の変化が河床変動に与える影響
八木澤順治; 田中規夫; 竹内博輝; 玉井信行
河川技術論文集, Volume：12, First page：67, Last page：72, 2006 - 飛沫通過量を最小にする最適防風フェンス構造に関する風洞実験
田中 規夫; 高木利光; 山崎典和; 児玉 敏雄; 八木澤順治
埼玉大学紀要工学部, Volume：39, First page：70, Last page：77, 2006 - スリランカ南部海岸線におけるインド洋大津波被害実態調査(その２) 海岸林の破壊限界モーメントに注目して
田中 規夫; 佐々木 寧; M.I.M. Mowjood; K.B.S.N. Jinadasa; 八木澤順治
埼玉大学紀要工学部, Volume：39, First page：62, Last page：69, 2006 - Situations of the Indian Ocean Tsunami at Dec.2004 in Thailand, Sri Lanka and Maldives
Sasaki, Y; Tanaka, N
Res. Pep. of Dept. of Civil & Environ. Eng., Saitama Univ., Volume：34, First page：39, Last page：52, 2006 - Effects and Limitations of the Coastal Vegetation in Sri Lanka and Thailand at the Indian Ocean Tsunami
Tanaka, N; Sasaki, Y
Res. Pep. of Dept. of Civil & Environ. Eng., Saitama Univ., Volume：34, First page：7, Last page：16, 2006 - 河道内に繁茂するヒメガマTypha angustifoliaの拡大可能性分析
武村武; 田中規夫
水工学論文集, Volume：50, First page：1189, Last page：1194, 2006 - ツルヨシのランナーによる群落拡大が土砂の移動限界に与える影響
八木澤順治; 田中規夫; 青木信哉
水工学論文集, Volume：50, First page：1177, Last page：1182, 2006
DOI：https://doi.org/10.2208/prohe.50.1177
DOI ID：10.2208/prohe.50.1177 - Effects of vegetation on pollutant removal in a constructed wetland in tropic region, Sri Lanka
Mowjood M.I.M.; Werellagama D.R.I.B.
Volume：1, Number：38, First page：141, Last page：142, 2005
This paper reports the joint project between Saitama University and University of Peradeniya for investigating the performance of constructed wetland. The facilities have three units of a sub-surface flow system and three units of surface flow system for treating domestic wastewater from students' hostels at the Faculty of Engineering, University of Peradeniya, Sri Lanka. Three emergent macrophytes, Scirpus grossus, Arundo donax and Typha angustifolia were selected and the joint experiments were started from May 2004.The analyzed water quality parameters were biological oxygen demand (BOD), chemical oxygen demand (COD), nitrate (NO3-N), ammonium (NH4-N), total phosphorus (TP), dissolved oxygen (DO), suspended solids (SS) and total dissolved solids (TDS). Plant growth was observed in marked quadrants inside the units and the aboveground biomass was examined by harvesting along the longitudinal direction of the unit. The study was carried out at an average hydraulic retention time of 18 hrs. Cutting experiment was conducted January 2005 for elucidating the appropriate management method. The experiments will continue and the difference of their regrowth with temperate region will be discussed in 2005.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370899 - 東北タイメコン河流域における環境共生型都市を目的とした物質循環とリスク評価<研究成果報告>
佐々木 寧; 小松 登志子; 王 青躍; 田中 規夫; 湯谷 賢太郎
Volume：1, Number：38, First page：134, Last page：140, 2005 - Appropriate flood intensity to the wetland in old meandering river trace considering the regrowth process of emergent macrophytes
Das S.C.
Volume：1, Number：38, First page：58, Last page：65, 2005
Field experiment was conducted for elucidating the damage effect on the productivity of wetland species, Phragmites australis, and upland species, Miscanthus sacchariflorus, in a river-floodplain. River flow was analyzed by two-dimensional depth-averaged Reynolds equation to solve the moment acting on the stems. Regrowth dynamic model considering their stem-breaking was formulated and their growth was analyzed in relation to flood discharge, flood interval and their stem-breaking moment. If their stem breaking is occurred every year, survival of the two species is difficult. However, they can survive with 2-5 years' interval and the superiority of M. sacchariflorus is decreased with stem-breaking condition. However, the breaking moment of M. sacchariflorus was larger than that of P. australis and the decrement in belowground biomass was smaller under bending damage. This indicates that the weak flood does not change their competitive superiority.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370748 - スリランカ南部海岸線におけるインド洋大津波被害実態調査(ラグーン、海岸砂丘、樹林帯に注目して)<論文>
田中 規夫; 佐々木 寧; M.I.M. Mowjood
Volume：1, Number：38, First page：66, Last page：73, 2005 - スマトラ沖大地震における樹林の津波防御効果について（タイ南部地区）<論文>
佐々木 寧; 田中 規夫; 湯谷; 賢太郎; サマン; ホモチュエン
Volume：1, Number：38, First page：49, Last page：57, 2005 - EVALUATION OF FLUID FORCE ON COLONY-MODEL BASED ON THE FUNDAMENTAL EXPERIMENT
TAKEMURA Takeshi; TANAKA Norio
Doboku Gakkai Ronbunshuu B, Volume：49, First page：871, Last page：876, 2005
Flow structures around colony-model on a flat plate, one of the vegetation type in river, were investigated by water flume experiment. Considering the characteristics of the colony of Phragmites australis, Typha angustifolia and Phragmites japonica, three parameters, distance between cylinders (L/D), aspect ratio and inclination, were decided. The two types of vortex street were visualized behind the colony-model, large eddy street and Kármán vortex street. The Strouhal number was not change with changing mean velocity. The value of drag coefficient, Cd, was changed based on L/D. When the aspect ratio was low, the Cd increased gradually with increasing L/D. But, it become almost constant value when the ratio was larger than 4. Moreover, the Cd decreased significantly with increasing the inclination of the colony-model. The Cd of the colony-modelc an be arranged by using L/D, aspect ratio and inclination of it.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.49.871
DOI ID：10.2208/prohe.49.871, ISSN：0916-7374, CiNii Articles ID：130003842238 - EVALUATION OF RUNNER EXPANSION LENGTH AND PRODUCTIVITY BY Phragmites japonica ON THE RIVER BAR
小川友浩; 田中規夫; 城野裕介
Doboku Gakkai Ronbunshuu B, Volume：49, First page：1441, Last page：1446, 2005
For elucidating the fundamental characteristics of Phragmites japonica that grow on a gravel-bed river bar in middle stream of Ara river, artificial sedimentation experiment on the plants' colony was conducted and the strength of runner was measured by push-pull gauge. Quadrates were set and runner expansion was measured seasonally. Sedimentation experiment with 0.1m thickness on May had no effect on the growth of P. japonica. The length of runner is closely related to the cumulative shoot height of parent colony of the runner. Even the newly formed colony has enough strength to stand against the high velocity. The velocity is higher than that for the initiation of the gravel movement. Then the lateral distribution and their seasonal development of the colony is very important to evaluate their effect on the flow resistance. Dynamic growth model of P. japonica formulated by using the lateral enlargement characteristics of the runner has a potential to express the seasonal variation of shoot biomass and lateral biomass distribution.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.49.1441
DOI ID：10.2208/prohe.49.1441, ISSN：0916-7374, CiNii Articles ID：130003842076 - A TRIAL TO CALCULATE THE NITROGEN REMOVAL EFFICIENCY WITH THE ONE DIMENSIONAL NITOGEN BUDGET MODEL ON THE REED-WETLAND SOIL SYSTEMS
YUTANI Kentaro; TANAKA Norio; YAMAUCHI Kota; ASAEDA Takashi
Doboku Gakkai Ronbunshuu B, Volume：49, First page：1255, Last page：1260, 2005
A simple one-dimensional model which can evaluate the fate and transport of nitrogen in wetland soil-vegetation systems was developed to calculate the nitrogen removal efficiencies of reed bed wetlands. Seasonal variations of temperature, seasonal variations of nitrogen uptake by vegetation, vertical biomass distribution in root, and oxygen transport by vegetation were considered in the model. Field observations were conducted to determine some model parameters, although almost of all parameters were adopted from published literature data in Europe and North America. The model calculation results for the concentrations of NH4-N and NO3-N in the soils were about ten and two times larger than that of observations results. However, the calculation results for nitrogen removal efficiencies indicated the same trends compared with previous studies.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.49.1255
DOI ID：10.2208/prohe.49.1255, ISSN：0916-7374, CiNii Articles ID：130003842042 - 津波防御に対する樹林幅と樹種影響について インド洋大津波におけるタイでの痕跡調査結果
田中規夫; 佐々木寧; 湯谷賢太郎; Samang Homchuen
Volume：52, First page：1346, Last page：1350, 2005
インド洋大津波に対し沿岸植生が果たした役割を, 樹種・樹形影響に特に注目し調査を行なった.樹形を考慮した植生厚みを定義し, 太い枝で枝分かれする低木林によい適用性を確認した. 密集し, かつ複雑な気根形態を持つMangrove樹フタバナヒルギは, 5m以下の津波に対し大きな効果を発揮した. 植栽林のうち, ココヤシは樹形が単純で, 樹間が大きく効果は少ないが, 10cm以上の太い枝で枝分かれをするカシューナッツ等の低木林は5m以下の津波防御・避灘に貢献すると判断した. また, 樹種や樹齢の異なる樹木で形成される階層構造や平面構造 (林内ギャップやクリーク) の有効性を確認した.
Japanese
DOI：https://doi.org/10.2208/proce1989.52.1346
DOI ID：10.2208/proce1989.52.1346, ISSN：0916-7897, CiNii Articles ID：130003991611 - 大型湿地植生の洪水によるダメージと回復過程を考慮した適正洪水導入規模に関する研究
田中 規夫
Volume：16年度, 2005 - Study of colony-type grass for wind-blown sand control: width and spacing considerations
Tanaka, N; Shirono, Y; Takagi, T
First page：1884, Last page：1893, 2005 - Management of below-ground biomass of Typha angustifolia by harvesting shoots above the water surface on different summer days
Tanaka, N; Watanabe, T; Asaeda, T; Takemura, T
Volume：1, First page：113, Last page：126, 2005 - Flow structures and sand deposition behind a colony-type grass on a gravel bar
Tanaka, N; Takemura, T; Shirono, Y
First page：2094, Last page：2103, 2005 - 熱帯地域スリランカにおける植生浄化実験<研究成果報告>
田中 規夫; 湯谷 賢太郎; M.I.M; Mowjood; D.R.I.B; Werellagama
埼玉大学紀要, 工学部, 第1部論文集, Volume：1, Number：38, First page：141, Last page：142, 2005
This paper reports the joint project between Saitama University and University of Peradeniya for investigating the performance of constructed wetland. The facilities have three units of a sub-surface flow system and three units of surface flow system for treating domestic wastewater from students' hostels at the Faculty of Engineering, University of Peradeniya, Sri Lanka. Three emergent macrophytes, Scirpus grossus, Arundo donax and Typha angustifolia were selected and the joint experiments were started from May 2004.The analyzed water quality parameters were biological oxygen demand (BOD), chemical oxygen demand (COD), nitrate (NO3-N), ammonium (NH4-N), total phosphorus (TP), dissolved oxygen (DO), suspended solids (SS) and total dissolved solids (TDS). Plant growth was observed in marked quadrants inside the units and the aboveground biomass was examined by harvesting along the longitudinal direction of the unit. The study was carried out at an average hydraulic retention time of 18 hrs. Cutting experiment was conducted January 2005 for elucidating the appropriate management method. The experiments will continue and the difference of their regrowth with temperate region will be discussed in 2005.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370899 - 東北タイメコン河流域における環境共生型都市を目的とした物質循環とリスク評価<研究成果報告>
佐々木 寧; 小松 登志子; 王 青躍; 田中 規夫; 湯谷 賢太郎
埼玉大学紀要, 工学部, 第1部論文集, Volume：1, Number：38, First page：134, Last page：140, 2005
The purpose of this research is to investigate the transport and risk assessment of Environmental Impact Chemicals (EICs) in the Mekong (Mae Nam Khong) basin of northeast Thailand. The two collaborating partners in Thailand are Ubon Ratchathani University and Khon Kaen University. Scientists of Saitama University visited these two universities and their research facilities. As the first step of the project, water quality parameters of 13 stations in Mekong and Moon River (branch of Mekong River) were measured. Hydraulic data of the basin were obtained from Water Resource Office of Hydrology (Khong Chiam Office and Ubon Ratchathani Office). Three wastewater treatment plants were visited and some water quality data of influent and effluent were collected. A meeting with professors and administrators (including Dean of faculty of Science) from both the universities in Thailand and Saitama University was held to discuss the research plans and further research collaborations. Following the discussion, some heavy metals and pesticides were selected as the specified EICs to be investigated in the project.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370564 - 大型湿地植生の洪水によるダメージと回復過程を考慮した適正洪水導入規模に関する研究<論文>
田中 規夫; Das S.C; 武村 武; 八木澤 順治
埼玉大学紀要, 工学部, 第1部論文集, Volume：1, Number：38, First page：58, Last page：65, 2005
Field experiment was conducted for elucidating the damage effect on the productivity of wetland species, Phragmites australis, and upland species, Miscanthus sacchariflorus, in a river-floodplain. River flow was analyzed by two-dimensional depth-averaged Reynolds equation to solve the moment acting on the stems. Regrowth dynamic model considering their stem-breaking was formulated and their growth was analyzed in relation to flood discharge, flood interval and their stem-breaking moment. If their stem breaking is occurred every year, survival of the two species is difficult. However, they can survive with 2-5 years' interval and the superiority of M. sacchariflorus is decreased with stem-breaking condition. However, the breaking moment of M. sacchariflorus was larger than that of P. australis and the decrement in belowground biomass was smaller under bending damage. This indicates that the weak flood does not change their competitive superiority.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370748 - スリランカ南部海岸線におけるインド洋大津波被害実態調査(ラグーン、海岸砂丘、樹林帯に注目して)<論文>
田中 規夫; 佐々木 寧; M.I.M. Mowjood
埼玉大学紀要, 工学部, 第1部論文集, Volume：1, Number：38, First page：66, Last page：73, 2005
For elucidating the effect of seaside forest on Tsunami protection, this study investigated the damage at the southern coast in Sri Lanka by Indian Ocean Tsunami occurred at Dec.26.2004. The investigated area covered about 250 km at the coast line. The representative vegetation was classified into five according to the stand structure of the tree and their stem diameter (d), tree height, branch structure, density of the trees and the forest-width to the Tsunami-direction were investigated. From the survey, mangrove, especially Rhizophora apiculata forest, and Pandanus odoratissimum was effective to protect Tsunami damage with its complex root structure. Two layer's forest in vertical direction with Pandanus odoratissimum and Casuarina equisetifolia were assumed effective to decrease the damage behind the forest Mixed forest structure with small and large diameter trees in plan view was also assumed important because the densely populated small diameter trees (d > 0.1) can reduce the velocity of the tsunami current and large diameter trees (d >0.3) can trap the broken branches, houses, etc. The survey indicates the importance of the horizontal and vertical forest structures.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370628 - スマトラ沖大地震における樹林の津波防御効果について（タイ南部地区）<論文>
佐々木 寧; 田中 規夫; 湯谷; 賢太郎; サマン; ホモチュエン
埼玉大学紀要, 工学部, 第1部論文集, Volume：1, Number：38, First page：49, Last page：57, 2005
This study reports the damage at the coastal area in south Thailand by Indian Ocean Tsunami occurred at Dec.26.2004. The investigated area covered about 250 km at Andaman seaside from Phuket to Ranong. For elucidating the effect of vegetation on tsunami protection, the representative vegetation was classified according to the stand structure of the tree. The representative trees were classified into five and their stem diameter (d), tree height, branch structure, density of the trees and the forest-width to the Tsunami-direction were investigated. From the survey, mangrove, especially Rhizophora apiculata forest, was effective to protect Tsunami damage with its complex root structure. Anacardium occidentale was also effective with its large diameter branches at low height from the ground level. On contrary, Casuarina equisetifolia has assumed little effect to reduce the velocity when their diameter grow large (d>0.5m) with large stem-spacing (7-30m).
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370612 - 株状粗度モデルに作用する流体力の評価に関する基礎実験
武村武; 田中規夫
水工学論文集, Volume：49, First page：871, Last page：876, 2005
Flow structures around colony-model on a flat plate, one of the vegetation type in river, were investigated by water flume experiment. Considering the characteristics of the colony of Phragmites australis, Typha angustifolia and Phragmites japonica, three parameters, distance between cylinders (L/D), aspect ratio and inclination, were decided. The two types of vortex street were visualized behind the colony-model, large eddy street and Kármán vortex street. The Strouhal number was not change with changing mean velocity. The value of drag coefficient, Cd, was changed based on L/D. When the aspect ratio was low, the Cd increased gradually with increasing L/D. But, it become almost constant value when the ratio was larger than 4. Moreover, the Cd decreased significantly with increasing the inclination of the colony-model. The Cd of the colony-modelc an be arranged by using L/D, aspect ratio and inclination of it.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.49.871
DOI ID：10.2208/prohe.49.871, ISSN：0916-7374, CiNii Articles ID：130003842238 - 河川中州上に繁茂するツルヨシのランナーによる拡大長と生産量の評価
小川友浩; 田中規夫; 城野裕介
水工学論文集, Volume：49, First page：1441, Last page：1446, 2005
For elucidating the fundamental characteristics of Phragmites japonica that grow on a gravel-bed river bar in middle stream of Ara river, artificial sedimentation experiment on the plants' colony was conducted and the strength of runner was measured by push-pull gauge. Quadrates were set and runner expansion was measured seasonally. Sedimentation experiment with 0.1m thickness on May had no effect on the growth of P. japonica. The length of runner is closely related to the cumulative shoot height of parent colony of the runner. Even the newly formed colony has enough strength to stand against the high velocity. The velocity is higher than that for the initiation of the gravel movement. Then the lateral distribution and their seasonal development of the colony is very important to evaluate their effect on the flow resistance. Dynamic growth model of P. japonica formulated by using the lateral enlargement characteristics of the runner has a potential to express the seasonal variation of shoot biomass and lateral biomass distribution.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.49.1441
DOI ID：10.2208/prohe.49.1441, ISSN：0916-7374, CiNii Articles ID：130003842076 - 一次元ヨシ-湿地土壌系窒素循環モデルによる湿地の窒素除去能力予測の試み
湯谷賢太郎; 田中規夫; 山内孝太; 浅枝隆
水工学論文集, Volume：49, First page：1255, Last page：1260, 2005
A simple one-dimensional model which can evaluate the fate and transport of nitrogen in wetland soil-vegetation systems was developed to calculate the nitrogen removal efficiencies of reed bed wetlands. Seasonal variations of temperature, seasonal variations of nitrogen uptake by vegetation, vertical biomass distribution in root, and oxygen transport by vegetation were considered in the model. Field observations were conducted to determine some model parameters, although almost of all parameters were adopted from published literature data in Europe and North America. The model calculation results for the concentrations of NH4-N and NO3-N in the soils were about ten and two times larger than that of observations results. However, the calculation results for nitrogen removal efficiencies indicated the same trends compared with previous studies.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.49.1255
DOI ID：10.2208/prohe.49.1255, ISSN：0916-7374, CiNii Articles ID：130003842042 - 津波防御に対する樹林幅と樹種影響について インド洋大津波におけるタイでの痕跡調査結果
田中規夫; 佐々木寧; 湯谷賢太郎; Samang Homchuen
海岸工学論文集, Volume：52, First page：1346, Last page：1350, 2005
インド洋大津波に対し沿岸植生が果たした役割を, 樹種・樹形影響に特に注目し調査を行なった.樹形を考慮した植生厚みを定義し, 太い枝で枝分かれする低木林によい適用性を確認した. 密集し, かつ複雑な気根形態を持つMangrove樹フタバナヒルギは, 5m以下の津波に対し大きな効果を発揮した. 植栽林のうち, ココヤシは樹形が単純で, 樹間が大きく効果は少ないが, 10cm以上の太い枝で枝分かれをするカシューナッツ等の低木林は5m以下の津波防御・避灘に貢献すると判断した. また, 樹種や樹齢の異なる樹木で形成される階層構造や平面構造 (林内ギャップやクリーク) の有効性を確認した.
Japanese
DOI：https://doi.org/10.2208/proce1989.52.1346
DOI ID：10.2208/proce1989.52.1346, ISSN：0916-7897, CiNii Articles ID：130003991611 - 大型湿地植生の洪水によるダメージと回復過程を考慮した適正洪水導入規模に関する研究
田中 規夫
総合研究機構研究プロジェクト研究成果報告書, Volume：16年度, First page：58, Last page：65, 2005
Field experiment was conducted for elucidating the damage effect on the productivity of wetland species, Phragmites australis, and upland species, Miscanthus sacchariflorus, in a river-floodplain. River flow was analyzed by two-dimensional depth-averaged Reynolds equation to solve the moment acting on the stems. Regrowth dynamic model considering their stem-breaking was formulated and their growth was analyzed in relation to flood discharge, flood interval and their stem-breaking moment. If their stem breaking is occurred every year, survival of the two species is difficult. However, they can survive with 2-5 years' interval and the superiority of M. sacchariflorus is decreased with stem-breaking condition. However, the breaking moment of M. sacchariflorus was larger than that of P. australis and the decrement in belowground biomass was smaller under bending damage. This indicates that the weak flood does not change their competitive superiority.
Japanese
ISSN：1880-4446, CiNii Articles ID：120001370748 - Study of colony-type grass for wind-blown sand control: width and spacing considerations
Tanaka, N; Shirono, Y; Takagi, T
Proc. XXXI IAHR Congress, First page：1884, Last page：1893, 2005 - Management of below-ground biomass of Typha angustifolia by harvesting shoots above the water surface on different summer days
Tanaka, N; Watanabe, T; Asaeda, T; Takemura, T
Landscape and Ecological Engineering, Volume：1, First page：113, Last page：126, 2005 - Flow structures and sand deposition behind a colony-type grass on a gravel bar
Tanaka, N; Takemura, T; Shirono, Y
Proc.XXXI IAHR Congress, First page：2094, Last page：2103, 2005 - Modelling of the long-term competition between Typha angustifolia and Typha latifolia in shallow water - effects of eutrophication, latitude and initial advantage of belowground organs
N Tanaka; T Asaeda; A Hasegawa; K Tanimoto
AQUATIC BOTANY, Volume：79, Number：4, First page：295, Last page：310, Aug. 2004
English
DOI：https://doi.org/10.1016/j.aquabot.2004.03.001
DOI ID：10.1016/j.aquabot.2004.03.001, ISSN：0304-3770, Web of Science ID：WOS:000223121900002 - THE INFLUENCE OF CUTTING WITH DIFFERENT SEASON ON BELOWGROUND DYNAMICS OF Typha angustifolia
TAKEMURA Takeshi; TANAKA Norio; ASAEDA Takashi
Number：754, First page：91, Last page：100, 21 Feb. 2004
Japanese
ISSN：0289-7806, CiNii Articles ID：10012500678, CiNii Books ID：AN10014020 - 透過傾斜型株模型周辺における風場と飛砂発生特性に関する風洞実験
田中規夫
Volume：51, First page：556, Last page：560, 2004
海浜安定化に寄与するコウボウムギ群落周辺の飛砂の特性を明らかにするため, コウボウムギ群落をモデル化した透過型傾斜粗度模型を用いて風洞実験を行い, 群落周辺の風場と砂面変化を測定した.コウボウムギ群落周辺の飛砂現象には群落形状の傾きによってもたらされる透過風速と側方風速の変化が大きくかかわっており, 風速分布, 砂の堆積位置から群落形状の傾斜角度が45°の場合に実際のコウボウムギに最も似た傾向にあることを示した.また, まばらな粗度空間で近接した2群落周辺においては, 一様に広がる場合と同じコロニー間隔でも飛砂発生量は多くなる場合があり, その量は群落形状の傾斜角度によって大きく変化することが判明した.
Japanese
DOI：https://doi.org/10.2208/proce1989.51.556
DOI ID：10.2208/proce1989.51.556, ISSN：0916-7897, CiNii Articles ID：130003807821 - APPROPRIATE FLOOD INTERVAL TO THE WETLAND IN OLD MEANDERING RIVER TRACE FOR NATURAL REHABILITATION
TANAKA Norio; KITAKAMI Yuki; OGAWA Tomohiro; ASAEDA Takashi
Doboku Gakkai Ronbunshuu G, Volume：32, First page：197, Last page：203, 2004
Competition between wetland species, Phragmites australis, and upland species, Misranthus sacchanflorus, in a river-wetland rehabilitation site was analyzed in relation to flood discharge, flood interval and their stem-breaking moment. River flow was analyzed by two-dimensional depth-averaged Reynolds equation to solve the moment acting on the stems. Regrowth dynamic model considering their stem-breaking, one of the damage types of the two species, was formulated. The decrease in biomass by flood discharge and interval were analyzed for monospecific stands and competitive stand. If their stem breaking is occurred every year, survival of the two species is difficult. However, if the interval is 2-5 years, they can survive but superiority of M. sacchariflorus is decreased. The analysis indicates that stem-breaking of both two species by flood every 2-5 years can delay the transition from wetland to upland species.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/proer.32.197
DOI ID：10.2208/proer.32.197, ISSN：1345-9597, CiNii Articles ID：80016989481 - Evaluation of sand-deposition volume behind Carex kobomugi Ohwi by analyzing re-growth characteristics of the shoot after typhoon event
SHIRONO Yusuke; TANAKA Norio; WATANABE Hajime; TAKAGI Toshimitsu
Journal of the Japanese Society of Revegetation Technology, Volume：30, Number：1, First page：74, Last page：79, 2004
Shoot-regrowth and belowground dynamics of Carex kobomugi Ohwi after sand accumulation by typhoon events were observed at Ryuyo beach in Shizuoka Prefecture. Dynamic growth model of C.kobomugi considering the re-growth characteristics was formulated. Sand deposition volume by the re-growth shoot was evaluated in relation to the thickness of sand accumulation by the model and by the relation between shoot biomass and deposited sand volume behind the colony. The deposition volume by the re-growth shoot after O.3 m-thickness sand accumulation was observed about 10% of that in no disturbance case. The model agrees well with the observation result. The volume decreases with increasing accumulation thickness and is evaluated only 2 % of no disturbance case by the model when the thickness is 1.0 m.
The Japanese Society of Revegetation Technology, Japanese
DOI：https://doi.org/10.7211/jjsrt.30.74
DOI ID：10.7211/jjsrt.30.74, ISSN：0916-7439, CiNii Articles ID：110002912270, CiNii Books ID：AN10130633 - 自然再生地における洪水導入規模が既存湿地植生に与える影響
田中規夫
Volume：10, First page：315, Last page：320, 2004 - EFFECT OF CUTTING Miscanthus sacchariflorus IN THEIR GROWING SEASON ON THE NEXT-SEASON'S COMPETITION WITH Solidago altissima
TANAKA Norio; YUTANI Kentaro; KITAKAMI Yuki; ASAEDA Takashi
Number：761, First page：95, Last page：100, 2004
Japanese
DOI ID：10.2208/jscej.2004.761_95, ISSN：0289-7806, CiNii Articles ID：10012364885, CiNii Books ID：AN10014020 - 透過傾斜型株模型周辺における風場と飛砂発生特性に関する風洞実験
田中規夫
海岸工学論文集, Volume：51, First page：556, Last page：560, 2004
海浜安定化に寄与するコウボウムギ群落周辺の飛砂の特性を明らかにするため, コウボウムギ群落をモデル化した透過型傾斜粗度模型を用いて風洞実験を行い, 群落周辺の風場と砂面変化を測定した.コウボウムギ群落周辺の飛砂現象には群落形状の傾きによってもたらされる透過風速と側方風速の変化が大きくかかわっており, 風速分布, 砂の堆積位置から群落形状の傾斜角度が45°の場合に実際のコウボウムギに最も似た傾向にあることを示した.また, まばらな粗度空間で近接した2群落周辺においては, 一様に広がる場合と同じコロニー間隔でも飛砂発生量は多くなる場合があり, その量は群落形状の傾斜角度によって大きく変化することが判明した.
Japanese
DOI：https://doi.org/10.2208/proce1989.51.556
DOI ID：10.2208/proce1989.51.556, ISSN：0916-7897, CiNii Articles ID：130003807821 - 旧流路湿地における自然再生を目的とした適正洪水導入間隔の検討
田中規夫
環境システム研究論文集, Volume：32, First page：197, Last page：203, 2004
Competition between wetland species, Phragmites australis, and upland species, Misranthus sacchanflorus, in a river-wetland rehabilitation site was analyzed in relation to flood discharge, flood interval and their stem-breaking moment. River flow was analyzed by two-dimensional depth-averaged Reynolds equation to solve the moment acting on the stems. Regrowth dynamic model considering their stem-breaking, one of the damage types of the two species, was formulated. The decrease in biomass by flood discharge and interval were analyzed for monospecific stands and competitive stand. If their stem breaking is occurred every year, survival of the two species is difficult. However, if the interval is 2-5 years, they can survive but superiority of M. sacchariflorus is decreased. The analysis indicates that stem-breaking of both two species by flood every 2-5 years can delay the transition from wetland to upland species.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/proer.32.197
DOI ID：10.2208/proer.32.197, ISSN：1345-9597, CiNii Articles ID：80016989481 - 台風攪乱後の再成長特性を考慮した海浜植物コウボウムギの堆砂量評価
城野 裕介; 田中 規夫; 渡辺 肇; 高木 利光
日本緑化工学会誌, Volume：30, Number：1, First page：74, Last page：79, 2004
Shoot-regrowth and belowground dynamics of Carex kobomugi Ohwi after sand accumulation by typhoon events were observed at Ryuyo beach in Shizuoka Prefecture. Dynamic growth model of C.kobomugi considering the re-growth characteristics was formulated. Sand deposition volume by the re-growth shoot was evaluated in relation to the thickness of sand accumulation by the model and by the relation between shoot biomass and deposited sand volume behind the colony. The deposition volume by the re-growth shoot after O.3 m-thickness sand accumulation was observed about 10% of that in no disturbance case. The model agrees well with the observation result. The volume decreases with increasing accumulation thickness and is evaluated only 2 % of no disturbance case by the model when the thickness is 1.0 m.
The Japanese Society of Revegetation Technology, Japanese
DOI：https://doi.org/10.7211/jjsrt.30.74
DOI ID：10.7211/jjsrt.30.74, ISSN：0916-7439, CiNii Articles ID：110002912270, CiNii Books ID：AN10130633 - 自然再生地における洪水導入規模が既存湿地植生に与える影響
田中規夫
河川技術論文集, Volume：10, First page：315, Last page：320, 2004 - 生長期における刈り取りがオギの翌年の生長ならびにセイタカアワダチソウとの競合関係に与える影響について
田中規夫
土木学会論文集, Number：761, First page：95, Last page：100, 2004
Japanese
DOI ID：10.2208/jscej.2004.761_95, ISSN：0289-7806, CiNii Articles ID：10012364885, CiNii Books ID：AN10014020 - 汽水域に生育するオオクグ(Carex rugulosa Kuekenth)の保全に対する生長解析の適用
武村武; 田中規夫; 浅枝隆; 国井秀伸; 今田直人; 古里栄一
Volume：47, 2003
ISSN：0916-7374, J-Global ID：200902212505988824 - THE INFLUENCE OF SOIL NUTRIENT CONDITIONS ON THE SUPERIORITY OF COMPETITION BETWEEN Typha angustifolia AND Typha latifolia
TANAKA Norio; HASEGAWA Atsushi; ASAEDA Takashi; WATANABE Tetsuhiro; KISHIDA Akiyoshi
Volume：719, First page：93, Last page：103, 21 Nov. 2002
Japanese
ISSN：0289-7806, CiNii Articles ID：10010350026, CiNii Books ID：AN10014020 - EVALUATION OF MATERIALS BUDGET BY AN APPLICATION OF GROWTH AND DECOMPOSITION MODEL OF Phragmites australis
NAM Le Hung; ASAEDA Takashi; TANAKA Norio; YUTANI Kentaro; TANIMOTO Katsutoshi
Volume：713, First page：9, Last page：20, 22 Aug. 2002
Japanese
ISSN：0289-7806, CiNii Articles ID：10009446712, CiNii Books ID：AN10014020 - Seasonal fluctuations in live and dead biomass of Phragmites australis as described by a growth and decomposition model: implications of duration of aerobic conditions for litter mineralization and sedimentation
T Asaeda; LH Nam; P Hietz; N Tanaka; S Karunaratne
AQUATIC BOTANY, Volume：73, Number：3, First page：223, Last page：239, Jul. 2002
English
DOI：https://doi.org/10.1016/S0304-3770(02)00027-X
DOI ID：10.1016/S0304-3770(02)00027-X, ISSN：0304-3770, Web of Science ID：WOS:000177124800004 - The influence of soil conditions on the growth dynamics of landward Phragmites australis.
TANAKA Norio; ASAEDA Takashi; KARUNARATNE Shiromi; TANIMOTO Katsutoshi
Doboku Gakkai Ronbunshu, Volume：2002, Number：698, First page：57, Last page：68, 2002
A dynamic model associated with shoot density variation along water depth gradient including landward site has been developed to illustrate the growth dynamics of Phragmites australis. The environmental factors affecting the strength of tillering of vertical rhizome has been considered. The validity was confirmed by the below ground and above-ground biomass ratio and shoot height. The tendency that the growth potential of landward reed is changed dynamically by the water defficiency or nutrient condition was well represented by vertical rhizome length and land height. The growth potential curve is shifted to landward or waterward, when water depth become deeper or shallower than the water depth when the rhizome was formed, respectively. The importance of landward reed is depicted as a bufferzone of water-level fluctuation. The difference between potential biomass and observed data indicates nutrient or healthy conditions and the thickness of organic layer is closely related the difference.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2002.698_57
DOI ID：10.2208/jscej.2002.698_57, ISSN：0289-7806, CiNii Articles ID：130003801894 - 初期生長期の特性に基づくガマ・ヒメガマの生長解析, 長谷川，田中，浅枝，谷本
Volume：46, First page：1109, Last page：1114, 2002
DOI：https://doi.org/10.2208/prohe.46.1109
DOI ID：10.2208/prohe.46.1109 - 刈り取りによる栄養塩除去量と再生長による地下茎回復量の関連について, 武村，田中，浅枝，谷本
Volume：46, First page：1115, Last page：1120, 2002
DOI：https://doi.org/10.2208/prohe.46.1115
DOI ID：10.2208/prohe.46.1115 - Rhizome expansion mechanism of Typha angustifolia in river.
TANAKA Norio; TAKEMURA Takeshi; ASAEDA Takashi; HASEGAWA Atsushi; TANIMOTO Katsutoshi
Doboku Gakkai Ronbunshu, Volume：698, Number：Ⅱ-58, First page：81, Last page：91, 2002
Growth models of Typha angustifolia and Typha latifolia were developed by using energy budgets among their each organ. These models were validated by above-ground to below-ground biomass ratio, composition ratio, growth characteristics to water depth, and seasonal variation of above-ground and below-ground biomass in the center of colony. Seasonal change of each organ of Typha angustifolia observed in their senescent season was indicated that fertile and sterile shoots have their each strategy to form their seeds or clone, new rhizome, respectively. The rhizome expansion of Typha latifolia and Typha angustifolia in river is found to change much by the shape of transverse section and by the surrounding external force of their site.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2002.698_81
DOI ID：10.2208/jscej.2002.698_81, CiNii Articles ID：130003801896 - 土壌条件が陸側のヨシPhragmites australisの生長に与える影響について,田中、浅枝、Karunaratne、谷本
Norio TANAKA; Takashi ASAEDA; Shiromi KARUNARATNE; Katsutoshi TANIMOTO
Doboku Gakkai Ronbunshu, Volume：2002, Number：698, First page：57, Last page：68, 2002
A dynamic model associated with shoot density variation along water depth gradient including landward site has been developed to illustrate the growth dynamics of Phragmites australis. The environmental factors affecting the strength of tillering of vertical rhizome has been considered. The validity was confirmed by the below ground and above-ground biomass ratio and shoot height. The tendency that the growth potential of landward reed is changed dynamically by the water defficiency or nutrient condition was well represented by vertical rhizome length and land height. The growth potential curve is shifted to landward or waterward, when water depth become deeper or shallower than the water depth when the rhizome was formed, respectively. The importance of landward reed is depicted as a bufferzone of water-level fluctuation. The difference between potential biomass and observed data indicates nutrient or healthy conditions and the thickness of organic layer is closely related the difference.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2002.698_57
DOI ID：10.2208/jscej.2002.698_57, ISSN：0289-7806, CiNii Articles ID：130003801894 - 初期生長期の特性に基づくガマ・ヒメガマの生長解析, 長谷川，田中，浅枝，谷本
長谷川敦
Volume：46, First page：1109, Last page：1114, 2002
DOI：https://doi.org/10.2208/prohe.46.1109
DOI ID：10.2208/prohe.46.1109, CiNii Articles ID：10010350045 - 刈り取りによる栄養塩除去量と再生長による地下茎回復量の関連について, 武村，田中，浅枝，谷本
Volume：46, First page：1115, Last page：1120, 2002
DOI：https://doi.org/10.2208/prohe.46.1115
DOI ID：10.2208/prohe.46.1115 - 河川空間におけるヒメガマTypha angustifoliaの地下茎拡大機構,田中、武村、浅枝、長谷川、谷本
TANAKA Norio; TAKEMURA Takeshi; ASAEDA Takashi; HASEGAWA Atsushi; TANIMOTO Katsutoshi
Doboku Gakkai Ronbunshu, Volume：698, Number：Ⅱ-58, First page：81, Last page：91, 2002
Growth models of Typha angustifolia and Typha latifolia were developed by using energy budgets among their each organ. These models were validated by above-ground to below-ground biomass ratio, composition ratio, growth characteristics to water depth, and seasonal variation of above-ground and below-ground biomass in the center of colony. Seasonal change of each organ of Typha angustifolia observed in their senescent season was indicated that fertile and sterile shoots have their each strategy to form their seeds or clone, new rhizome, respectively. The rhizome expansion of Typha latifolia and Typha angustifolia in river is found to change much by the shape of transverse section and by the surrounding external force of their site.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2002.698_81
DOI ID：10.2208/jscej.2002.698_81, CiNii Articles ID：130003801896 - 抽水植物の鉛直生産構造の相違を考慮した生長解析, 田中、浅枝、谷本、長谷川
Volume：45, First page：1093, Last page：1098, 2001
DOI：https://doi.org/10.2208/prohe.45.1093
DOI ID：10.2208/prohe.45.1093 - FORAGING BEHAVIOR OF Pseudorasbora parva IN ARTIFICIAL VEGETATION
PRIYADARSHANA Tilak; ASAEDA Takashi; MANATUNGE Jagath; TANAKA Norio; TANIMOTO Katsutoshi
Doboku Gakkai Ronbunshu, Volume：670, Number：Ⅱ-54, First page：73, Last page：82, 2001
As macrophytes have considerable structrual variation for prey communities by hindering predator foraging and affect the predator behavior, the swimming and feeding behavior of planktivore (Pseudorasbora parva) with their prey (Daphnia pulex) were studied in laboratory experiments with varying densities (350, 700, 1400, 2100 and 2800 stems·m-2) of artificial submerged vegetation and with different prey densities (0.5, 1, 2, 5, 10 and 25 prey·1-1). The swimming speed of the fist was found to be negatively related to the prey density; and a significant change in swimming speed was noted as being directly related to the level of satiation The maximum feeding rates was found to depend upon and snow a marked variation with average prey distance. As the stem density gradually increases, the predator's foraging efficiency decreases considerably relative to feeding in open water. Moreover, a good relation in the feeding rate and swimming speed exists with the average stem distance to fish body length ratio (D). Abrupt reduction in feeding and swimming was recorded when D was near 0.7, which is approximately equal to one stride length of a fish.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2001.670_73
DOI ID：10.2208/jscej.2001.670_73, ISSN：0289-7806, CiNii Articles ID：10006537632, CiNii Books ID：AN10014020 - PERIPHYTON POPULATION DYNAMICS CONSIDERING SPECIES COMPETITION
DUONG Hong Son; ASAEDA Takashi; TANAKA Norio; TANIMOTO Katsutoshi
Volume：677, Number：Ⅱ-55, First page：151, Last page：161, 2001
Japanese
DOI ID：10.2208/jscej.2001.677_151, ISSN：0289-7806, CiNii Articles ID：10006539570, CiNii Books ID：AN10014020 - Evaluation of the Quantity of Nutrients Removal Based on the Growth Analysis of Phragmites australis
TANAKA Norio; ASAEDA Takashi; KARUNARATNE Shiromi; TANIMOTO Katsutoshi
Damu Kogaku, Volume：11, Number：1, First page：26, Last page：39, 2001
In order to quantify the water quality improvement method by direct removal of the biomass of Phragmites australis which accumulates nutrient salts, the biomass of Phragmites australis under various temperature curve and daily global radiant flux were analyzed and the nutrient content were calculated. The variation of the biomass was related to the total accumulated temperature of early growing season by stored material of rhizomes and of photosynthetically growing season, and the ratio of the respective accumulated temperature. Analysis of annual flux showed that the respiration of aboveground and belowground plant organs was an unavoidable component and changed the energy budget of utilizing photosysthesized materials, caused the variaiton of the biomass. The removable quantity of nutrients of aboveground biomass was changed drastically with respect to the harvest day
Japan Society of Dam Engineers
DOI：https://doi.org/10.11315/jsde1991.11.26
DOI ID：10.11315/jsde1991.11.26, ISSN：0917-3145, CiNii Articles ID：130004370251 - EFFECT OF WATER DEPTH ON THE GROWTH DYNAMICS OF Phragmites australis
TANAKA Norio; ASAEDA Takashi; KARUNARATNE Shiromi; TANIMOTO Katsuotshi
Doboku Gakkai Ronbunshu, Volume：677, Number：677, First page：141, Last page：150, 2001
A dynamic model associated with water depth has been developed to simulate the growth dynamics of Phragmites australis. The biomass of shoots and rhizomes are analyzed with respect to various water depth. Phragmites australis have to grow over the critical height beyond the water depth while early season growing by stored material of rhizomes. There exists a severely influenced zone that aboveground and underground biomasses are sharply decreased as the water depth increases over the critical height. The severely influenced zone is varied with respect to initial rhizomes biomass. The density ratio per one shoot is decreased as the water depth increases, and the strength is also decreased. Morphological change of rhizomes contributes so as not to decrease the biomass under the critical height
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2001.677_141
DOI ID：10.2208/jscej.2001.677_141, ISSN：0289-7806, CiNii Articles ID：10006539541, CiNii Books ID：AN10014020 - 抽水植物の鉛直生産構造の相違を考慮した生長解析, 田中、浅枝、谷本、長谷川
田中規夫
Volume：45, First page：1093, Last page：1098, 2001
DOI：https://doi.org/10.2208/prohe.45.1093
DOI ID：10.2208/prohe.45.1093, CiNii Articles ID：80012435962 - 人工植生中におけるモツゴの捕食行動特性分析,Priyadarshana、浅枝、Manatunge、田中、谷本
PRIYADARSHANA Tilak; ASAEDA Takashi; MANATUNGE Jagath; TANAKA Norio; TANIMOTO Katsutoshi
Doboku Gakkai Ronbunshu, Volume：670, Number：Ⅱ-54, First page：73, Last page：82, 2001
As macrophytes have considerable structrual variation for prey communities by hindering predator foraging and affect the predator behavior, the swimming and feeding behavior of planktivore (Pseudorasbora parva) with their prey (Daphnia pulex) were studied in laboratory experiments with varying densities (350, 700, 1400, 2100 and 2800 stems·m-2) of artificial submerged vegetation and with different prey densities (0.5, 1, 2, 5, 10 and 25 prey·1-1). The swimming speed of the fist was found to be negatively related to the prey density; and a significant change in swimming speed was noted as being directly related to the level of satiation The maximum feeding rates was found to depend upon and snow a marked variation with average prey distance. As the stem density gradually increases, the predator's foraging efficiency decreases considerably relative to feeding in open water. Moreover, a good relation in the feeding rate and swimming speed exists with the average stem distance to fish body length ratio (D). Abrupt reduction in feeding and swimming was recorded when D was near 0.7, which is approximately equal to one stride length of a fish.
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2001.670_73
DOI ID：10.2208/jscej.2001.670_73, ISSN：0289-7806, CiNii Articles ID：10006537632, CiNii Books ID：AN10014020 - 種間の競争を考慮した付着藻類群集の変動解析,Duong、浅枝、田中、谷本
DUONG Hong Son; ASAEDA Takashi; TANAKA Norio; TANIMOTO Katsutoshi
Volume：677, Number：Ⅱ-55, First page：151, Last page：161, 2001
Japanese
DOI ID：10.2208/jscej.2001.677_151, ISSN：0289-7806, CiNii Articles ID：10006539570, CiNii Books ID：AN10014020 - ヨシの生長解析に基づく栄養塩除去量の評価，田中，浅枝，Karunaratne, 谷本
TANAKA Norio; ASAEDA Takashi; KARUNARATNE Shiromi; TANIMOTO Katsutoshi
Damu Kogaku, Volume：11, Number：1, First page：26, Last page：39, 2001
In order to quantify the water quality improvement method by direct removal of the biomass of Phragmites australis which accumulates nutrient salts, the biomass of Phragmites australis under various temperature curve and daily global radiant flux were analyzed and the nutrient content were calculated. The variation of the biomass was related to the total accumulated temperature of early growing season by stored material of rhizomes and of photosynthetically growing season, and the ratio of the respective accumulated temperature. Analysis of annual flux showed that the respiration of aboveground and belowground plant organs was an unavoidable component and changed the energy budget of utilizing photosysthesized materials, caused the variaiton of the biomass. The removable quantity of nutrients of aboveground biomass was changed drastically with respect to the harvest day
Japan Society of Dam Engineers
DOI：https://doi.org/10.11315/jsde1991.11.26
DOI ID：10.11315/jsde1991.11.26, ISSN：0917-3145, CiNii Articles ID：130004370251 - アシPhragmites australis の生長に対する湛水深の影響解析，田中，浅枝，Karunaratne,谷本
Norio TANAKA; Takashi ASAEDA; Katsutoshi TANIMOTO; Shiromi KARUNARATNE
Doboku Gakkai Ronbunshu, Volume：677, Number：677, First page：141, Last page：150, 2001
A dynamic model associated with water depth has been developed to simulate the growth dynamics of Phragmites australis. The biomass of shoots and rhizomes are analyzed with respect to various water depth. Phragmites australis have to grow over the critical height beyond the water depth while early season growing by stored material of rhizomes. There exists a severely influenced zone that aboveground and underground biomasses are sharply decreased as the water depth increases over the critical height. The severely influenced zone is varied with respect to initial rhizomes biomass. The density ratio per one shoot is decreased as the water depth increases, and the strength is also decreased. Morphological change of rhizomes contributes so as not to decrease the biomass under the critical height
Japan Society of Civil Engineers, Japanese
DOI：https://doi.org/10.2208/jscej.2001.677_141
DOI ID：10.2208/jscej.2001.677_141, ISSN：0289-7806, CiNii Articles ID：10006539541, CiNii Books ID：AN10014020 - GROWTH DYNAMICS OF Phragmites australis COSIDERING THE VARIATION OF AIR TEMPERATURE AND RADIANT FLUX
TANAKA Norio; ASAEDA Takashi; KARUNARATNE Shiromi
Volume：663, Number：663, First page：119, Last page：129, 2000
Japanese
DOI ID：10.2208/jscej.2000.663_119, ISSN：0289-7806, CiNii Articles ID：10004967126, CiNii Books ID：AN10014020 - 日射量・気温変化によるアシPhragmites australis の生長予測解析，田中，浅枝，Karunaratne
TANAKA Norio; ASAEDA Takashi; KARUNARATNE Shiromi
Doboku Gakkai Ronbunshu, Volume：663, Number：663, First page：119, Last page：129, 2000
Japanese
DOI ID：10.2208/jscej.2000.663_119, ISSN：0289-7806, CiNii Articles ID：10004967126, CiNii Books ID：AN10014020 - Influences of Subgrid Heterogeneity of Land Use and Grid Size on Water and Heat Budgets in the Shutoken Area, Jia,Y., Tamai,N. & Tanaka,N.
Volume：43, First page：115, Last page：120, 1999 - Influences of Subgrid Heterogeneity of Land Use and Grid Size on Water and Heat Budgets in the Shutoken Area, Jia,Y., Tamai,N. & Tanaka,N.
Volume：43, First page：115, Last page：120, 1999 - 物体周りの組織渦を利用した浮遊砂の促進について, 田中，金子
Volume：35, First page：365, Last page：370, 1991
DOI：https://doi.org/10.2208/prohe.35.365
DOI ID：10.2208/prohe.35.365 - 底面上の3次元ならびに2次元物体後方の組織的渦構造の変動特性，田中
田中 規夫
Volume：10, Number：2, First page：93, Last page：105, 1991
DOI：https://doi.org/10.11426/nagare1982.10.93
DOI ID：10.11426/nagare1982.10.93, ISSN：0286-3154, CiNii Articles ID：80005990044 - Promotion of Sediment Suspension Utilizing Coherent Eddies around an Obstacle in front of a Weir, Tanaka，N.,Kaneko，T.
First page：A431-A440, 1991 - 物体周りの組織渦を利用した浮遊砂の促進について, 田中，金子
田中則夫
Volume：35, First page：365, Last page：370, 1991
DOI：https://doi.org/10.2208/prohe.35.365
DOI ID：10.2208/prohe.35.365, CiNii Articles ID：10008003178 - 底面上の3次元ならびに2次元物体後方の組織的渦構造の変動特性，田中
Norio TANAKA
Journal of Japan Society of Fluid Mechanics, Volume：10, Number：2, First page：93, Last page：105, 1991
DOI：https://doi.org/10.11426/nagare1982.10.93
DOI ID：10.11426/nagare1982.10.93, ISSN：0286-3154, CiNii Articles ID：80005990044 - Promotion of Sediment Suspension Utilizing Coherent Eddies around an Obstacle in front of a Weir, Tanaka，N.,Kaneko，T.
First page：A431-A440, 1991 - Vortex Motion around Large Roughness Elements in Open Channel Flow
TANAKA Norio; HOSOKAWA Tomonaru; TAMAI Nobuyuki
Doboku Gakkai Ronbunshuu B, Volume：34, First page：487, Last page：492, 1990
Flow around large roughness elements in open channel flow is studied by flow visualization using hemisphere and hemicylinder in a flow. When water depth to roughness height ratio (H/R) equals 3, shed vortices reach the water surface and there occurs 'boiling phenomenon'. The flow around a two-dimensional roughness (hemicylinder) was found similar to that of the hemisphere, and boiling phenomenon appeared in 5 rows. Near the reattachment point, the mean flow is upward in the "vortices head's" section and downward in the "leg's" section. Results show the effect of vortices' motion on the mean velocity profile.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.34.487
DOI ID：10.2208/prohe.34.487, ISSN：0916-7374, CiNii Articles ID：130003841371 - 開水路底面上の大規模粗度付近における渦運動について, 田中，細川，玉井
TANAKA Norio; HOSOKAWA Tomonaru; TAMAI Nobuyuki
Doboku Gakkai Ronbunshuu B, Volume：34, First page：487, Last page：492, 1990
Flow around large roughness elements in open channel flow is studied by flow visualization using hemisphere and hemicylinder in a flow. When water depth to roughness height ratio (H/R) equals 3, shed vortices reach the water surface and there occurs 'boiling phenomenon'. The flow around a two-dimensional roughness (hemicylinder) was found similar to that of the hemisphere, and boiling phenomenon appeared in 5 rows. Near the reattachment point, the mean flow is upward in the "vortices head's" section and downward in the "leg's" section. Results show the effect of vortices' motion on the mean velocity profile.
Japan Society of Civil Engineers
DOI：https://doi.org/10.2208/prohe.34.487
DOI ID：10.2208/prohe.34.487, ISSN：0916-7374, CiNii Articles ID：130003841371 - VORTEX STRUCTURES AROUND A HEMISPHERIC HUMP
N TAMAI; T ASAEDA; N TANAKA
BOUNDARY-LAYER METEOROLOGY, Volume：39, Number：3, First page：301, Last page：314, May 1987
English
DOI：https://doi.org/10.1007/BF00116124
DOI ID：10.1007/BF00116124, ISSN：0006-8314, Web of Science ID：WOS:A1987H680500007 - Vortex strctures around a hemispheric hump, Tamai, N., Asada, T., Tanaka, N.
Boundary-Layer Meteorology, Volume：39, Number：3, First page：301, Last page：314, 1987
DOI：https://doi.org/10.1007/BF00116124
DOI ID：10.1007/BF00116124, ISSN：0006-8314
- 水理公式集例題集（2024年版）
[Joint work]
Dec. 2024 - 高橋裕 他 川の百科事典
2009 - 高橋裕 他 川の百科事典
丸善, 2009 - 有田正光編、池田裕一、栗山昭、田中規夫、中井正則著 生物圏の環境
2007 - 有田正光編、池田裕一、栗山昭、田中規夫、中井正則著 生物圏の環境
東京電機大学出版局, 2007 - 浅枝隆，田中規夫 湖沼およびダム湖の管理手法と整備 水環境ハンドブック
2006 - 浅枝隆，田中規夫 湖沼およびダム湖の管理手法と整備 水環境ハンドブック
日本水環境学会編, 2006
- 洪水時流失条件に基づく流木捕捉が可能な樹林帯の分類評価に関する研究
2009 - Hydrologic budget and Hydrodynamic Modelling approach in Restoring Koggala Lake
2009 - Effect of Submerged Plants on Disslved Oxygen Dynamics and Nitrogen Removal in Constructed Wetlands
2009 - Restoration of Koggala Lagoon; Evaluating Lagoon Hydrologic Budget, Flushing Time and Flow Characteristics
2009 - Effects of tsunami and tree conditions on tsunami reduction –experimental study
2009 - Flow through vegetation: steady flow resistance
2009 - Numerical modeling of steady flow through vegetation
2009 - Pre and post anoxic denitrification on nitrogen removal in wetland systems using submerged and floating macrophytes
2009 - Local adaptation of coastal forest for tsunami reduction, the case study around Sendai airport, Japan
2009 - Drag coefficient of a real tree trunk at high Reynolds numers
2009 - Drag and sheltering characteristics of clump-type vegetation
2009 - Impact of riverbed elevation change on threshold moment and shear stress for washing out trees in a river
2009 - Difference of wash-out condition of plants due to floods with respect to the vegetated location on gravel-bed bars
2009 - Vegetaion engineering for eco-friendrical countermeasure to mitigate disasters in coast or river
2009 - Experiments on solitary waves passing through coastal vegetation under Waterlogged Conditions
2009 - Influence of fluid forces induced by turbulence flow on bed protection block stability
2009 - Effects of substrate removal in root anchoring zone on maximum resistive bending moment for overturning
2009 - The Effectiveness of Vetiver Grass in Controlling Water Borne Erosion in Bangladesh
2009 - Evaluation of the sequential impact of integrated submerged-floating macrophyte wetland systems in wastewater treatment
2009 - Restoration of Koggala Lagoon; Modelling Approach in evaluating Lagoon Water budget and Flow Characteristics
2009 - Tsunami flow velocity behind the coastal forest with an open gap– Effects of tsunami and tree condition
2009 - Indices for evaluating the breaking and wash-out condition of trees on gravel bar at flood events
2009 - Wastewater treatment using constructed wetlands in tropical conditions
2009 - Effect of Coir on Bioremediation of Pollutants in Tropical Constructed Wetlands in Asia
2009 - Effect of Coir on Bioremediation of Pollutants in Tropical Constructed Wetlands
2009 - 河川敷の薮化・樹林化問題を考える これまでの治水対策で大丈夫か
2009 - 洪水時流失条件に基づく流木捕捉が可能な樹林帯の分類評価に関する研究
応用生態工学年会, 2009 - Hydrologic budget and Hydrodynamic Modelling approach in Restoring Koggala Lake
応用生態工学年会, 2009 - Effect of Submerged Plants on Disslved Oxygen Dynamics and Nitrogen Removal in Constructed Wetlands
Tropical Agricultural Research, 2009 - Restoration of Koggala Lagoon; Evaluating Lagoon Hydrologic Budget, Flushing Time and Flow Characteristics
Proceedings of ADB -JSP Forum, 2009 - Effects of tsunami and tree conditions on tsunami reduction –experimental study
Vietnamese and Japanese Students' Scientific Exchange Conference, 2009 - Flow through vegetation: steady flow resistance
Proc. of the International Exchange Symposium, 2009 - Numerical modeling of steady flow through vegetation
Proc. of the International Exchange Symposium, 2009 - Pre and post anoxic denitrification on nitrogen removal in wetland systems using submerged and floating macrophytes
Proc. of the International Exchange Symposium, 2009 - Local adaptation of coastal forest for tsunami reduction, the case study around Sendai airport, Japan
Proc. of the International Exchange Symposium, 2009 - Drag coefficient of a real tree trunk at high Reynolds numers
Proc. of the International Exchange Symposium, 2009 - Drag and sheltering characteristics of clump-type vegetation
Proc. of the International Exchange Symposium, 2009 - Impact of riverbed elevation change on threshold moment and shear stress for washing out trees in a river
Proc. of the International Exchange Symposium, 2009 - Difference of wash-out condition of plants due to floods with respect to the vegetated location on gravel-bed bars
Proc. of the International Exchange Symposium, 2009 - Vegetaion engineering for eco-friendrical countermeasure to mitigate disasters in coast or river
Proc. of the International Exchange Symposium, 2009 - Experiments on solitary waves passing through coastal vegetation under Waterlogged Conditions
South China Sea Tsunami Workshop 3 SCSTW3, 2009 - Influence of fluid forces induced by turbulence flow on bed protection block stability
Proc. 11th Int. Summer Sym., 2009 - Effects of substrate removal in root anchoring zone on maximum resistive bending moment for overturning
Proc. 11th Int. Summer Sym, 2009 - The Effectiveness of Vetiver Grass in Controlling Water Borne Erosion in Bangladesh
Proc. 11th Int. Summer Sym, 2009 - Evaluation of the sequential impact of integrated submerged-floating macrophyte wetland systems in wastewater treatment
Proc. 11th Int. Summer Sym, 2009 - Restoration of Koggala Lagoon; Modelling Approach in evaluating Lagoon Water budget and Flow Characteristics
13th International Conference on Integrated Diffuse Pollution Management (IWA DIPCON 2009), 2009 - Tsunami flow velocity behind the coastal forest with an open gap– Effects of tsunami and tree condition
Coastal Dynamics2009, 2009 - Indices for evaluating the breaking and wash-out condition of trees on gravel bar at flood events
Proc. of 33rd IAHR, 2009 - Wastewater treatment using constructed wetlands in tropical conditions
Abstracts of Regional workshop on Wetland Resources Management: Integrated Approach Towards Sustainability, 2009 - Effect of Coir on Bioremediation of Pollutants in Tropical Constructed Wetlands in Asia
Proceedings of the 18th Symposium on Environmental Chemistry, 2009 - Effect of Coir on Bioremediation of Pollutants in Tropical Constructed Wetlands
Symposium on Effective Synergization of Water Resources and Natural Landscape, 2009 - 河川敷の薮化・樹林化問題を考える これまでの治水対策で大丈夫か
第56回日本生態学会講演要旨集, 2009 - 側岸侵食が樹木の流失限界に及ぼす影響
2008 - 株状粗度群内の底面せん断力特性の評価に関する実験的研究
2008 - Green belt response for tsunami mitigation in Sri Lanka: evidences from Field observations and Numerical simulations 154
2008 - Effect of Open Gap in Coastal Forest on Tsunami Reduction - Investigation by Experiment and Numerical Simulation
2008 - Tsunami defense combining coastal vegetation and the banking of coastal roads
2008 - Performance of Scirpus grossus in mono and mixed cultures in constructed wetlands under tropical conditions treating domestic waste
2008 - Effective coastal vegetative landscaping for the tsunami protection in Sri Lanka
2008 - Mitigation of Tsunami Inundation by Coastal Vegetation
2008 - Impact of coconut coir-pith as an alternative substrate material on water reclamation in submergent plant wetland systems
2008 - ptimal wind protection fence that minimize the spray transport to the downstream
2008 - Flow structures and sedimentation characteristics around colony-type vegetation at flood events
2008 - Distributed water balance model in watershed coupling with river dynamic flow routing method
2008 - Numerical investigation of the effects of opening gap width in forest on tsunami runup on coast
2008 - Conservation significance of wetlands Case study from Sri Lanka
2008 - Effect of harvesting on constructed wetlands performance in tropical conditions
2008 - Effect of ammonium nitrogen concentration on nitrate nitrogen removal in submerged plant wetland microcosms
2008 - Effect of coconut coir-pith supplement on enhanced water reclamation activity in submerged plant wetland systems
2008 - Vegetation bio-shield for tsunami: its effectiveness, limitations, construction, management and future planning
2008 - Coastal vegetation effects on reducing tsunami run-up height and the fluid force
2008 - Collapse condition of river bed protection block installed in the front of weirs by floods
2008 - Loading experiments of standing trees with the modeled local scour in the root anchoring zone
2008 - Tsunami defense effects by the combination of coastal vegetation and banking of coastal road
2008 - Evaluation of the removal condition of invasive plant to gravel bed river, Eragrostis curvula, by the erosion of substrate
2008 - Distributed water balance model in watershed coupling with dynamic and diffusive river flow routing
2008 - Differences of tree-breaking pattern and breaking moment by floods with different tree age and substrate condition under two flood disturbances
2008 - Modeling Approach on Studying the Effect of Water Level Fluctuation on Belowground Oxygen Dynamics in Wetland Mesocosms
2008 - Distributed Water Balance Model in Watershed Coupled With River Flow Routings
2008 - 側岸侵食が樹木の流失限界に及ぼす影響
第63回年次学術講演会, 2008 - 株状粗度群内の底面せん断力特性の評価に関する実験的研究
2008 - Green belt response for tsunami mitigation in Sri Lanka: evidences from Field observations and Numerical simulations 154
International Forestry & Environmental Symposium 2008, Sri Lanka, Kaluthara, Sri Lanka, 2008 - Effect of Open Gap in Coastal Forest on Tsunami Reduction - Investigation by Experiment and Numerical Simulation
Proc. 3rd AIWEST2008, Banda Ache-Indonesia, 2008 - Tsunami defense combining coastal vegetation and the banking of coastal roads
Proc. 3st AIWEST, Banda Ache-Indonesia, 2008 - Performance of Scirpus grossus in mono and mixed cultures in constructed wetlands under tropical conditions treating domestic waste
Proc. 7th Sym., pp.28, Eastern University, Sri Lanka, 2008 - Effective coastal vegetative landscaping for the tsunami protection in Sri Lanka
Annual proceedings of SLAAS (Sri Lanka Assoc. for the Advancement of Science) conference, 2008 - Mitigation of Tsunami Inundation by Coastal Vegetation
IESL, 2008 - Impact of coconut coir-pith as an alternative substrate material on water reclamation in submergent plant wetland systems
Proc. ICWST 2008 India, 2008 - ptimal wind protection fence that minimize the spray transport to the downstream
Proc. of 16th IAHR-APD & 3rd IAHR-ISHS, Nanjin, China, 2008 - Flow structures and sedimentation characteristics around colony-type vegetation at flood events
Proc. of 16th IAHR-APD & 3rd IAHR-ISHS, Nanjin, China, 2008 - Distributed water balance model in watershed coupling with river dynamic flow routing method
Proc. of 16th IAHR-APD & 3rd IAHR-ISHS, Nanjin, China, 2008 - Numerical investigation of the effects of opening gap width in forest on tsunami runup on coast
Proc. 10th Int. Summer Sym., 2008 - Conservation significance of wetlands Case study from Sri Lanka
Proc. 10th Int. Summer Sym., 2008 - Effect of harvesting on constructed wetlands performance in tropical conditions
Proc. 10th Int. Summer Sym., 2008 - Effect of ammonium nitrogen concentration on nitrate nitrogen removal in submerged plant wetland microcosms
Proc. 10th Int. Summer Sym., 2008 - Effect of coconut coir-pith supplement on enhanced water reclamation activity in submerged plant wetland systems
Proc. of Sustainable Infrastructure Development in Asia, International Exchange Symposium on September 15-19 [2008], Saitama University, Japan (SU), University of Peradeniya, Sri Lanka (UoP) & University of Moratuwa, Sri Lanka (UoM) , Sri Lanka, 2008 - Vegetation bio-shield for tsunami: its effectiveness, limitations, construction, management and future planning
Proc. of Sustainable Infrastructure Development in Asia, International Exchange Symposium on September 15-19 [2008], Saitama University, Japan (SU), University of Peradeniya, Sri Lanka (UoP) & University of Moratuwa, Sri Lanka (UoM) , Sri Lanka, 2008 - Coastal vegetation effects on reducing tsunami run-up height and the fluid force
Proc. of Sustainable Infrastructure Development in Asia, International Exchange Symposium on September 15-19 [2008], Saitama University, Japan (SU), University of Peradeniya, Sri Lanka (UoP) & University of Moratuwa, Sri Lanka (UoM) , Sri Lanka, 2008 - Collapse condition of river bed protection block installed in the front of weirs by floods
Proc. of Sustainable Infrastructure Development in Asia, International Exchange Symposium on September 15-19 [2008], Saitama University, Japan (SU), University of Peradeniya, Sri Lanka (UoP) & University of Moratuwa, Sri Lanka (UoM) , Sri Lanka, 2008 - Loading experiments of standing trees with the modeled local scour in the root anchoring zone
Proc. of Sustainable Infrastructure Development in Asia, International Exchange Symposium on September 15-19 [2008], Saitama University, Japan (SU), University of Peradeniya, Sri Lanka (UoP) & University of Moratuwa, Sri Lanka (UoM) , Sri Lanka, 2008 - Tsunami defense effects by the combination of coastal vegetation and banking of coastal road
Proc. of Sustainable Infrastructure Development in Asia, International Exchange Symposium on September 15-19 [2008], Saitama University, Japan (SU), University of Peradeniya, Sri Lanka (UoP) & University of Moratuwa, Sri Lanka (UoM) , Sri Lanka,, 2008 - Evaluation of the removal condition of invasive plant to gravel bed river, Eragrostis curvula, by the erosion of substrate
ICHE, 2008 - Distributed water balance model in watershed coupling with dynamic and diffusive river flow routing
ICHE, 2008 - Differences of tree-breaking pattern and breaking moment by floods with different tree age and substrate condition under two flood disturbances
ICHE, 2008 - Modeling Approach on Studying the Effect of Water Level Fluctuation on Belowground Oxygen Dynamics in Wetland Mesocosms
Proc. 12th International Conference on Integrated Diffuse Pollution Management (IWA DIPCON 2008), 2008 - Distributed Water Balance Model in Watershed Coupled With River Flow Routings
EJISST 2008 booklet, 2008 - 樹木群模型周辺の流れ構造と繁茂状態の異なる実樹木群周辺の土砂堆積特性
2007 - 河道内樹木の鉛直構造の違いを考慮した合成抗力作用高さの変化
2007 - Werellagama, D.R.I.B., Jinadasa, K.B.S.N. and Y. Sasaki, Sustainable coastal vegetation-based landscaping: Its role for tsunami protection in Sri Lanka
2007 - Effects and limitations of coastal vegetation in tsunami protection: Points for mitigation and future reconstruction
2007 - Coastal vegetation and tsunami protection: A case study on field investigation and numerical simulation (Poster)
2007
Poster presentation - ジャワ津波災害において海岸林や樹木が果たした減災と救命効果
2007 - A Trial to Calculate the Nitrogen Removal Efficiency with One Dimensional Nitrogen Budget Model on the Reed-Wetland Soil System
2007 - 樹木群模型周辺の流れ構造と繁茂状態の異なる実樹木群周辺の土砂堆積特性
土木学会, 2007 - 河道内樹木の鉛直構造の違いを考慮した合成抗力作用高さの変化
土木学会, 2007 - Werellagama, D.R.I.B., Jinadasa, K.B.S.N. and Y. Sasaki, Sustainable coastal vegetation-based landscaping: Its role for tsunami protection in Sri Lanka
2007 - Effects and limitations of coastal vegetation in tsunami protection: Points for mitigation and future reconstruction
2007 - Coastal vegetation and tsunami protection: A case study on field investigation and numerical simulation (Poster)
2007
Poster presentation - ジャワ津波災害において海岸林や樹木が果たした減災と救命効果
2007 - A Trial to Calculate the Nitrogen Removal Efficiency with One Dimensional Nitrogen Budget Model on the Reed-Wetland Soil System
ABSTRACTS of WRRS2005 IWA, 2007 - シナダレスズメガヤ周辺の土砂移動限界の変化および同植物の洪水時除去条件
2006
Poster presentation - ガガブタNymphoides indicaの動態と栄養塩吸収特性
2006
Poster presentation - ベンチュリ効果によるヨシ枯死茎通気特性の水工学的考察
2006 - Plant expansion modeling for analyzing the change of the threshold velocity of gravel movement
2006 - Model evaluation of regeneration and reproduction of harvested Phragmites australis stand - Similarity at three Japanese sites -
2006 - Modeling analysis of the competition between Phragmites australis and Miscanthus sacchariflorus under the damage of stem-breaking or , bending
2006
Poster presentation - Effective coastal vegetation species and structures with landform, sand dune and lagoon, for tsunami protection at the Indian Ocean tsunami
2006 - Trial run with intermittent loading to control clogging in subsurface flow constructed wetlands
2006 - Effects of flood interval on the growth of Phragmites japonica and the change of threshold velocity for gravel movement
2006 - Wind tunnel experiments on flow around double arranged windbreaks
2006 - Effective Coastal Vegetation Management for Tsunami Protection
2006 - Effects of sand dune and vegetation in the coastal area of Sri Lanka at the Indian Ocean tsunami
2006 - Effect of dead culm on radial oxygen loss of Phragmites australis under different light intensities and temperature
2006 - The effect of stem breaking/bending of two rhizomatous plants, Phragmites australis and Miscanthus sacchariflorus on the floodplain vegetation
2006 - Effects and limitation of coastal vegetation on and behind the sand dune at the Indian Ocean tsunami and important points for future restoration
2006 - Roughing Filter coupled with Treatment Wetland - A solution for restoring sanitation after natural disasters -
2006 - Improving nitrogen removal by carbon substrate amendment in vegetated tank with vertical flow system
2006 - Effect of cutting on net production and sustainability of emergent macrophytes, Zizania latifolia
2006 - シナダレスズメガヤ周辺の土砂移動限界の変化および同植物の洪水時除去条件
2006
Poster presentation - ガガブタNymphoides indicaの動態と栄養塩吸収特性
2006
Poster presentation - ベンチュリ効果によるヨシ枯死茎通気特性の水工学的考察
2006 - Plant expansion modeling for analyzing the change of the threshold velocity of gravel movement
2006 - Model evaluation of regeneration and reproduction of harvested Phragmites australis stand - Similarity at three Japanese sites -
2006 - Modeling analysis of the competition between Phragmites australis and Miscanthus sacchariflorus under the damage of stem-breaking or , bending
2006
Poster presentation - Effective coastal vegetation species and structures with landform, sand dune and lagoon, for tsunami protection at the Indian Ocean tsunami
APD-IAHR Congress, 2006 - Trial run with intermittent loading to control clogging in subsurface flow constructed wetlands
APD-IAHR Congress, 2006 - Effects of flood interval on the growth of Phragmites japonica and the change of threshold velocity for gravel movement
APD-IAHR Congress, 2006 - Wind tunnel experiments on flow around double arranged windbreaks
2006 - Effective Coastal Vegetation Management for Tsunami Protection
2006 - Effects of sand dune and vegetation in the coastal area of Sri Lanka at the Indian Ocean tsunami
2006 - Effect of dead culm on radial oxygen loss of Phragmites australis under different light intensities and temperature
2006 - The effect of stem breaking/bending of two rhizomatous plants, Phragmites australis and Miscanthus sacchariflorus on the floodplain vegetation
2006 - Effects and limitation of coastal vegetation on and behind the sand dune at the Indian Ocean tsunami and important points for future restoration
2006 - Roughing Filter coupled with Treatment Wetland - A solution for restoring sanitation after natural disasters -
Proc.JSWE, 2006 - Improving nitrogen removal by carbon substrate amendment in vegetated tank with vertical flow system
Proc.JSWE, 2006 - Effect of cutting on net production and sustainability of emergent macrophytes, Zizania latifolia
Proc.JSWE, 2006 - Coastal vegetation for Tsunami protection Case study from the Indian Ocean (Sri Lanka and Thailand)
2005 - 礫河原における多年生草本シナダレスズメガヤ(Eragrostis curvula)の除去条件の評価
2005 - 洪水攪乱により土砂被りを受けたツルヨシの翌年の再生長特性
2005
Poster presentation - Regrowth characteristics of two rhizomatous plants, Phragmites australis and Miscanthus sacchariflorus after damages on their stems
2005 - Effect of external organic matter addition on a lab-scale subsurface flow constructed wetland
2005 - Effect of disturbance on the productivity of emergent macrophytes, Zizania latifolia Turcz.
2005 - Application of the distributed water and sediment balance model including dam construction effect to the Arakawa River basin
2005 - Analysis of required flood disturbance intensity and frequency for maintaining small wetland plants
2005 - 異なる光量下における枯死茎の有無がヨシの根からの酸素漏出量に与える影響
2005 - ベンチュリー効果によるヨシ枯死茎の酸素輸送量の定量化
2005 - インド洋大津波と海岸林が果たした役割 タイ、スリランカ沿岸
2005 - Coastal vegetation for Tsunami protection Case study from the Indian Ocean (Sri Lanka and Thailand)
Proc.International Conference on Coastal and fluvial Disasters (Kyoto), 2005 - 礫河原における多年生草本シナダレスズメガヤ(Eragrostis curvula)の除去条件の評価
応用生態工学研究会第9回大会, 2005 - 洪水攪乱により土砂被りを受けたツルヨシの翌年の再生長特性
応用生態工学研究会第9回大会, 2005
Poster presentation - Regrowth characteristics of two rhizomatous plants, Phragmites australis and Miscanthus sacchariflorus after damages on their stems
Proc. 7th Int. Summer Sym., 2005 - Effect of external organic matter addition on a lab-scale subsurface flow constructed wetland
Proc. 7th Int. Summer Sym., 2005 - Effect of disturbance on the productivity of emergent macrophytes, Zizania latifolia Turcz.
Proc. 7th Int. Summer Sym., 2005 - Application of the distributed water and sediment balance model including dam construction effect to the Arakawa River basin
Proc. 7th Int. Summer Sym., 2005 - Analysis of required flood disturbance intensity and frequency for maintaining small wetland plants
Proc. 7th Int. Summer Sym., 2005 - 異なる光量下における枯死茎の有無がヨシの根からの酸素漏出量に与える影響
年会, 2005 - ベンチュリー効果によるヨシ枯死茎の酸素輸送量の定量化
日本水環境学会年会, 2005 - インド洋大津波と海岸林が果たした役割 タイ、スリランカ沿岸
第11回日本マングローブ学会, 2005 - 株状群落モデルに作用する流体力について
2004 - Effects of vegetation and litter on flow
2004 - Effect of stem-breaking caused by flood on the transition of wetland vegetation in old river trace
2004 - 台風攪乱による砂被りが翌年のコウボウムギの飛砂捕捉量に与える影響
2004 - 刈り取りがヨシ湿地土壌中の窒素動態に与える影響
2004 - ツルヨシ(Phragmites japonica)のランナーによる拡大能力の評価
2004 - Hydrodynamic force on colony-model cylinders with different porosity
2004 - Estimation of mineral nutrient budget and sediment nutrient uptake of Typha angustifolia using a mathematical model
2004 - DRIB Werellagama, MIM mowjood, Junji Yagisawa, Remediation and rehabilitation of constructed wetland
2004 - Wind tunnel experiments on blown-sand phenomena around inclined porous cylinders
2004 - 株状群落モデルに作用する流体力について
流体力の評価とその応用に関する研究論文集, 2004 - Effects of vegetation and litter on flow
4th ISEH/14th IAHR-APD, 2004 - Effect of stem-breaking caused by flood on the transition of wetland vegetation in old river trace
4th ISEH/14th IAHR-APD, 2004 - 台風攪乱による砂被りが翌年のコウボウムギの飛砂捕捉量に与える影響
応用生態工学研究会第8回大会, 2004 - 刈り取りがヨシ湿地土壌中の窒素動態に与える影響
第32回環境システム研究論文発表会講演集, 2004 - ツルヨシ(Phragmites japonica)のランナーによる拡大能力の評価
応用生態工学研究会第8回大会, 2004 - Hydrodynamic force on colony-model cylinders with different porosity
The 6th International Summer Symposium, JSCE, 2004 - Estimation of mineral nutrient budget and sediment nutrient uptake of Typha angustifolia using a mathematical model
The 6th International Summer Symposium, JSCE, 2004 - DRIB Werellagama, MIM mowjood, Junji Yagisawa, Remediation and rehabilitation of constructed wetland
The 6th International Summer Symposium, JSCE, 2004 - Wind tunnel experiments on blown-sand phenomena around inclined porous cylinders
Proc., 10th Asian Congress of Fluid Mechanics, 2004 - Performance comparison of Typha angustifolia and Scirpus grossus in tropical free water surface constructed wetland
Poster presentation - Kinetics of hexavalent chromium adsorption on coconut coir pith in aqueous solutions
- Estimation of nutrient budgets around Typha angustifolia considering the harvesting of aerial organs and their regrowth characteristics in different growing seasons
- Effects of vegetation on pollutant removal in a constructed wetland: Potential applications for tropical developing-world countries
- Effect of external organic matter addition on phosphorus removal process in a lab scale subsurface flow constructed wetland
Poster presentation - Performance comparison of Typha angustifolia and Scirpus grossus in tropical free water surface constructed wetland
Proc.WRRS
Poster presentation - Kinetics of hexavalent chromium adsorption on coconut coir pith in aqueous solutions
Proc.JSWE - Estimation of nutrient budgets around Typha angustifolia considering the harvesting of aerial organs and their regrowth characteristics in different growing seasons
IWA-ASPIRE - Effects of vegetation on pollutant removal in a constructed wetland: Potential applications for tropical developing-world countries
IWA-ASPIRE - Effect of external organic matter addition on phosphorus removal process in a lab scale subsurface flow constructed wetland
Proc.WRRS
Poster presentation
■ Research projects
- 湿地
Competitive research funding - 植生水理学
Competitive research funding - 津波
Competitive research funding - ｗｅｔｌａｎｄ
Competitive research funding - vegetation hydraulics
Competitive research funding - tsunami
Competitive research funding