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Study on Characteristics of Flow and Primary Production of Riffles and Gravel Rivers

Research Project

Project/Area Number 11305035
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 水工水理学
Research InstitutionTokyo Institute of Technology

Principal Investigator

IKEDA Syunsuke  Tokyo Institute of Technology, Graduate School of Science and Engineering, Professor, 大学院・理工学研究科, 教授 (60016590)

Co-Investigator(Kenkyū-buntansha) TODA Yuji  Tokyo Institute of Technology, Graduate School of Science and Engineering, Research Associate, 大学院・理工学研究科, 助手 (60301173)
YAGI Hiroshi  Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate Professor, 大学院・理工学研究科, 助教授 (80201820)
ISHIKAWA Tadaharu  Tokyo Institute of Technology, Interdisciplinary Graduate School of Science and Engineering, Professor, 大学院・総合理工学研究科, 教授 (50159696)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥36,520,000 (Direct Cost: ¥35,200,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2001: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2000: ¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 1999: ¥26,700,000 (Direct Cost: ¥26,700,000)
KeywordsRiffles and Pools / Primary Production / Periphyton / Gravel Rivers / Hydraulic Characteristics / Nutrients / 一次生産 / 水理特性 / 藻類増殖モデル
Research Abstract

Field observations on the characteristics of primary production of periphyton were performed at riffles and pools in Tama-river. The imitated gravels made of concrete were settled in the riffles and the pools. Three imitated gravels were picked out at each location every week for 55 days, and the periphyton attached to them was removed by toothbrush. The amount of chlorophyll-a of the algae was measured by using spectrophotometer. It was found that the periphyton growing on the gravels at riffles has larger photosynthetic activity than that at pools.
The laboratory measurements on the growth of periphyton were conducted in 4 tandemly placed laboratory flumes, in which the environmental conditions except for the hydraulic conditions were controlled to be the same among the flumes in order to identify the effects of hydraulic characteristics on the primary production of periphyton. The results of the experiments indicate that the primary production of periphyton takes large value for the case where the near-bottom turbulence is large.
A numerical simulation model was presented to describe the temporal growth of periphyton. The effect of the hydraulic conditions on the growth of periphyton is taken into account in the model via the diffusivity of nutrients and other substrates inside of the biofilm. The computation predicts the temporal variation of the biomass of periphyton in the experiments well.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] 戸田 祐嗣: "水理特性が付着藻類の一次生産特性に与える影響に関する研究"土木学会論文集. (印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 戸田 祐嗣: "平坦河床上の藻類の増殖と剥離に関する研究"水工学論文集. 45. 1111-1116 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Syunsuke Ikeda: "Numerical Study on Turbulent Flow and Honami in and above Flexible Plant Canopy"International Journal of Heat and Fluid Flow. 22・3. 252-258 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 池田 駿介: "複断面河道湾曲部の水平組織渦および2次流に関する研究"水工学論文集. 45. 1051-1056 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yoshihisa Akamatsu: "Field Observation on Tidal Transport of Organic Muterials and Nutrients in a Mangrove Area"Proc.2nd IAHR Squp.on River, Coastal and Estuarine Maphodynamics. 2. 413-422 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 赤松 良久: "マングローブ水域における地下浸透流による有機物・栄養塩輸送"第56回土木学会年次学術講演会講演概要集. (CD-ROM). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yuji Toda, Yoshihisa Akamatsu and Syunsuke Ikeda: "Study on Primary Production of Periphyton in Streams in Relation to Hydraulic Conditions"Journal of Hydraulic, Costal and Environmental Engineering. (Now printing).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yuji Toda, Yoshihisa Akamatsu and Syunsuke Ikeda: "Study on Production and Detachment of Periphyton growing on Flat Channel bed"Annual Journal of Hydraulic Engineering. 45. 1111-1116 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Syunsuke Ikeda, Tomohiro Yamada and Yuji Toda: "Numerical Study on Turbulent Flow and Honami in and above Flexible Plant Canopy"International Journal of Hest and Fluid Flow. 22-3. 252-258 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Syunsuke Ikeda, Masatake Fukumoto, Tadashi Hanamura and Kazuhiro Kawamura: "Study on Secondary Flow in Curved Compound Channel"Annual Journal of Hydraulic Engineering. 45. 1051-1056 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yoshihisa Akamatsu, Syunsuke Ikeda, Yohei Nakashima and Yuji Toda: "Field Observations on Tidal Transport of Organic Materials and Nutrients in a Mangrove Area"Proceeding of 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2. 413-422 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 戸田祐嗣: "水理特性が付着藻類の一次生産特性に与える影響に関する研究"土木学会論文集. (登載決定). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 戸田祐嗣: "平坦河床上の藻類の増殖と剥離に関する研究"水工学論文集. 45. 1111-1116 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Syunsuke Ikeda: "Numerical Study on turbulent flow and honami in and above flexible plant canopy"Int. Jour. of Heat and Fluld Flow. 22・3. 252-258 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 池田駿介: "複断面河道湾曲部の水平組織渦および2次流に関する研究"水工学論文集. 45. 1051-1056 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshihisa Akamatsu: "Field observations on tidal transport of organic materials and nutrients in a Mangrove area"Proc. 2nd IAHR Symp. on River, coastal and Estuarine Morphodynamles. 2. 413-422 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 赤松 良久: "マングローブ水域における地下浸透流による有機物・栄養塩輸送"第56回土木学会年次学術講演会講演概要集. (CD-ROM). (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 池田駿介: "複断面開水路に生じる大規模組織渦と浮遊砂輸送"土木学会論文集. 656. 135-144 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 池田駿介: "不透過水制群を有する流れの水理特性に関する研究"土木学会論文集. 656. 145-155 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Syunsuke IKEDA: "Large Eddy Simulation of Flow and Sediment Transport in Compound Channel."Proc.3rd Int.Symp.on Turbulence, Heat and Mass Transfer. 3. 109-116 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 赤松良久: "河床付着性藻類の増殖と剥離に関する実験的研究"河川技術に関する論文集. 6. 113-118 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 戸田祐嗣: "平坦河床上の付着藻類の増殖と剥離に関する研究"水工学論文集. 45(発表予定). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 戸田祐嗣: "水理特性が付着藻類の増殖と剥離に及ぼす影響に関する実験的研究"第55回土木学会年次学術講演会講演概要集(CD-ROM). 55・II. (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 池田 駿介: "2次元LESを用いた可撓性を有する植生層内外の乱流構造と穂波現象に関する研究"土木学会論文集. 621. 53-64 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 戸田 祐嗣: "礫床河川の物質循環シミュレーション"土木学会論文集. 635. 67-84 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 戸田 祐嗣: "洪水流による礫床河川高水敷土壌および植生の変化に関する現地観測"水工学論文集. (発表予定).

    • Related Report
      1999 Annual Research Report
  • [Publications] Syunsuke IKEDA: "Numerical Study on Turbulence Flow and Honami in and above Flexible Plant Canopy"Proc of 3nd Int. Symp on Turb. Heat and Mass Transfer. (発表予定).

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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