SEARCH

Search Details

FUJINO　Takeshi
Environmental Science and Civil Engineering DivisionProfessor
Department of Civil and Environmental Engineering

Researcher information

■ Research group
  • Environmental Science, East Asia SD research

Performance information

■ Paper
■ Research projects
  • Livestock manure compost by electrolysis-coagulation process for the stable added value　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 01 Apr. 2022 - 31 Mar. 2025
    Saitama University
    Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
    Grant number：22K12472
  • 照葉樹林帯の生活科学－ミャンマー山岳地域チン州における資源利用特性と植生の関係－　　　　　　　　　　　　　　　
    01 Apr. 2019 - 31 Mar. 2023
    Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
    Grant number：19K02349
  • Study on size-segregated characterization of air pollution particles collected at the model field in Southeast Asia and those transportation into rainwater　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2017 - 31 Mar. 2020
    Sekiguchi Kazuhiko, Saitama University
    Grant amount(Total)：15990000, Direct funding：12300000, Indirect funding：3690000
    Size-segregated concentrations of OC, EC, WSOC, and ionic components were measured for PM samples collected at three locations around Hanoi, Vietnam. On the day when high PM concentration was observed, secondary products increased, suggesting the possibility of transboundary pollution from China. Also, organic marker analysis showed the possibility of mixed combustion of biomass and plastic waste in addition to secondary generation on high-concentration days, and this tendency was remarkable even in ultrafine particles. On the other hand, the analysis of PAHs in atmospheric PM and suspended particles in rainwater revealed that PAHs in the atmosphere are transferred to the hydrosphere via rainwater. When image analysis was performed using a scanning microscope, some particulate matter considered to be derived from the atmosphere was confirmed in the sample of rainwater.
    Grant number：17H04483
  • Radioactive contamination of paddy field in the downstream of a river from highly-contaminated area　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 01 Apr. 2015 - 31 Mar. 2018
    Ueno Daisuke, Saga University
    Grant amount(Total)：4940000, Direct funding：3800000, Indirect funding：1140000
    Major sources of radioactive contamination for paddy field in Fukushima area could be the irrigation water from river water because radioactive concentration in river water seemed to be increasing. This research had conducted to quantify radioactive cesium amount in irrigation water and paddy soil. As a result of quantification, the total amount of radioactive cesium in irrigation water through one season showed less than 1 % of that residue in paddy soil.
    Grant number：15K11954
  • Survey on water quality and benthic taxonomy at headwater of Ayeyarwady river, Myanmar　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2012 - 31 Mar. 2015
    FUJINO Takeshi; NISHIGAKI Koichi, Saitama University
    Grant amount(Total)：10660000, Direct funding：8200000, Indirect funding：2460000
    We present the results of the first investigation of the water and sediment
    properties and macroinvertebrate community at a 2nd order stream in Chin State, Myanmar. The concentrations of inorganic nitrogen and phosphorus measured in the rainy season are very high compared with those measured in the dry season. The first Myanmar Trichoptera list based on the literature and recently collected materials are made. It comprises 227 species in 68 genera and 28 families. Twenty-one species belonging to 15 genera and 10 families were recorded in Myanmar for the first time.
    We examined the knowledge and awareness of 200 respondents in two local townships, Mindat and Kanpetlet, regarding local environment issues and development requirements. Results indicated differences in knowledge and level of awareness between the two townships particularly regarding issues such as the reduction in fallow period, forest dependence, promoting tourism, protecting local identity and family planning requirements.
    Grant number：24404004
  • EVATUATION OF PRIMARY PRODUCTIVITY IN STREAM BY TWO DIMENSIONAL FLUORESCENCE MEASUREMENT METHOD　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2009 - 2011
    FUJINO Takeshi; TAKAHASHI Motoyuki, Saitama University
    Grant amount(Total)：4680000, Direct funding：3600000, Indirect funding：1080000
    Pulse Amplitude Modulation(PAM)method is used to evaluate photosynthesis activities for algae. In this study, estimation of primary productivity of stream bed periphyton was applied. Handy Fluor Cam was used to obtain horizontally two dimensional distributions. As a result, there is correlation between the minimum fluorescence yield Fo and the biomass for green algae and filamentous algae. There is relatively high correlation between the maximum fluorescence yield Fm and diatom. For direct measurement in field, the dark condition and enough amount of algal biomass are necessary.
    Grant number：21560533
  • 車軸藻によるファイトレメディエーションの効果の把握と実用化可能性の研究　　　　　　　　　　　　　　　
    2007 - 2008
    Grant amount(Total)：3200000, Direct funding：3200000
    Grant number：19651029
  • ECOLOGICAL PROCESS OF AQUATIC ECOSYSTEMS DURING IMPOUNDMENT OF A DAM　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 2007 - 2008
    FUJINO Takeshi, Saitama University
    Grant amount(Total)：4550000, Direct funding：3500000, Indirect funding：1050000
    Grant number：19560509
  • Development of ecological model for river channel forestation and application to the real rivers　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 2007 - 2008
    Saitama University
    Grant amount(Total)：18980000, Direct funding：14600000, Indirect funding：4380000
    Grant number：19360219
  • 低次河川中のCPOMおよび物質の動態評価に関する工学的アプローチ　　　　　　　　　　　　　　　
    2005 - 2006
    Grant amount(Total)：3200000, Direct funding：3200000
    Grant number：17760399
  • Field observation of shallow lake covered by Charophytes for purifying water quality　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 2005 - 2006
    SASAEDA Takashi; FUJINO Takeshi, Saitama University
    Grant amount(Total)：11500000, Direct funding：11500000
    Covering the lake bottom, Charophytes have a substantial potential in purifying water in lakes. However, lack of research on water quality in charophyte dominant Japanese lakes as well as the disappearance of charophyte bed in Japan make it difficult to evaluate the efficiency of purifying water by charophytes in shallow lakes. Field observation we conducted at Myall lake is NSW, Australia, where the entire lake was covered with charophytes and the underlying gyttja layer, then chemicals of plant, gyttja, and water samples were analyzed in laboratory to clarify ecology of charophytes and effects on water quality based on their life style. Then, following are clarified.
    1)Charophytes inhibit disturbing the bottom sediment surface, and gyttja originated from charophytes are extremely fine and viscous, stabilizing the bottom surface against wind currents. Thus, the recovery of nutrient in the sediment to the overlying water is hampered.
    2) Gyttja is extremely soft, then is hard to anchor other submerged plants with high buoyancy. Thus the invasion of other plants is inhibited.
    3)Charophytes trap phosphate when they produce calcite using calcium in water. This system seems to be available even in Japanese lakes with relatively small calcium concentration.
    4)Gyttja is composed of extremely fine particles thus its layer is very anoxic. Thus, the interstitial water is rich in ammonium rather than nitrate. As phosphate concentration is low, thus the nitrogen and phosphorus ratio is very high. When charophytes uptake nutrient, they highly fractionate ammonium composed of light nitrogen rather than heavy one. Thus, the nitrogen stable isotope ratio of charophyte tissues becomes extremely low.
    Grant number：17404008
  • 有機物輸送サブモデルの構築に向けた詳細観測による一次河川リターの動態の解明　　　　　　　　　　　　　　　
    2003 - 2004
    Grant amount(Total)：16640000, Direct funding：12800000, Indirect funding：3840000
    Grant number：15686021
  • Data Collection of Aquatic Plant in Different Environment to the Modeling　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 2003 - 2004
    ASAEDA Takashi; J. Manatunge; TANAKA Norio; FUJINO Takeshi, Saitama University
    Grant amount(Total)：13600000, Direct funding：13600000
    In order to predict the growth responses for Aquatic plants in different age, water depths, climate condition, and any other environmental factors, Phragmites australis, Typha angustifolia, Zizania latifolia were studied in a natural stand in lake and pond in Japan. Eleocharis sphacelata, Baumea arthrophora, and Juncus ingens were also investigated in Australia.
    Summary of the main results are as follows.
    1)As for Phragmites australis, there is a clear variation between rhizome age-classes in belowground resources translocation patterns depending on the season.
    2)The growth was severely retarded by cutting combined with salinity, which was many implications for better management of Phragmites stands.
    3)The comparison of the growth performance of Phragmites across the geographic gradient relealed differences in phonological and growth/production traits.
    4)A dynamic growth model was developed for Typha latifolia and Typha angustifolia that took account of their vertical productive structures, life cycle, shoot height, leaf area and aboveground biomass.
    5)In contrast to other species, self-thinning of Zizania latifolia shoots reallocates some of the minerals contained in the dead shoots back to the rhizomes, which can be regarded as a strategy to replenish the reduced resources of the rhizomes. And, some submerged plant, Potamogeton perfoliatus, and two species of Charophytes were also investigated.
    Grant number：15404015
  • 都市域における熱とCO2環境緩和をめざした保水性建材による緑化の試み　　　　　　　　　　　　　　　
    2001 - 2002
    Grant amount(Total)：2200000, Direct funding：2200000
    Grant number：13750483
  • A study on solid waste management in wide area　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 1998 - 2000
    KITAWAKI Hidetoshi; FUJINO Takeshi; OSHITANI Hajime; FUJITA Kenji; MIFUNE Naoto, Toyo University
    Grant amount(Total)：3100000, Direct funding：3100000
    1. Survey on Railway Transportation of Solid Waste
    Field surveys were carried out to investigate current situation of solid waste transportation by railway and technical and institutional problems were discussed.
    2. Study on wide-area transportation of solid waste from economic point of view
    Traditionally, "polluter pay principle" was the basis of solid waste management, which promoted local authorities to magage solid wastes inside municipality boudaries. In this study, problems related with wide-area management were analyzed form economic point of view. Also, selection of long-distance transportation methods and site selection method of treatment facilities were also analized.
    3. Study on environmental impact of large landfill sites
    Large-scale solid waste landfill with conventional pavement will lead to the change on micro-climate and causes temperature raise. However, water retainable blocks and pavements were proved to be able to maintain thermal condition at the same level as the natural soil. The effect of land surface improvement on the urban thermal condition was also investigated. In addition, application of water retainable blocks to roofing material was also investigated.
    4. Study on "Should-be picture" of solid waste transportation in wide area
    The role of railway transportation of solid waste was studies from the standpoint of health and environment. "Should-be picture" of wide-area railway transportation was also investigated.
    Grant number：10650544
  • Study on the effects of aquatic vegetation on foraging behaviour of planktivores in lakes　　　　　　　　　　　　　　　
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 1998 - 1999
    ASAEDA Takashi; FUJINO Takeshi; CA THANH Vu, Saitama University
    Grant amount(Total)：13300000, Direct funding：13300000
    In littoral zones of lakes, macrophytes have considerable structural variation and that provides protection to prey communities by hindering predator foraging. The swimming and feeding behaviour of a planktivore (Pseudorasbora parva) with their prey (Daphnia pulex) were studied in a series of laboratory experiments with varying densities of simulated submerged vegetation. Prey availability was varied from 0.5, 1, 2, 5, 10 and 25 prey.lィイD1-1ィエD1. As the stem density gradually increased, the predator's foraging efficiency decreased considerably relative to feeding in open water. Moreover, a good relation in feeding rate and swimming speed existed with the average stem distance to fish body length ratio. Abrupt reduction in feeding and swimming was recorded when fish body length ratio was near 0.7, which is approximately equal to one stride length of a fish.
    In fish, hunger increases the motivation to feed and also efficiency of feeding. After 36 hours of food deprivation, the feeding and swimming behaviour of Pseudorasbora parva was studied under different prey densities. The initial feeding rates showed marked variations in relation to prey availability. Under high densities the initial feeding rate of fish was higher and subsequently decreased faster, when compared to those feeding under low prey densities. At high prey densities, two factors are involved : that of high prey encounter rates and also the attainment of food satiation at a faster rate. Across all prey densities, the feeding rates of fish reached a plateau after satiation. The swimming speed was noted as being directly related to the level of satiation. After satiation, the fish fed at a steady rate irrespective of prey density. However, the swimming speed of fish varied significantly in relation to prey density. It was found that the maximum feeding rates depend upon and show a marked variation with average prey distance.
    Grant number：10450179
  • 琵琶湖流域の水・熱循環過程解明に向けた総合研究と衛星同期共同観測-琵琶湖プロジェクト　　　　　　　　　　　　　　　
    1995 - 1997
    Grant amount(Total)：12900000, Direct funding：12900000
    Grant number：07305020
TOP