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Study on evaluation of water environment in basin by a composite model of hydrological regime and agricultural water use.

Research Project

Project/Area Number 02660235
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 農業土木
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

WATANABE Tsugihiro  Kyoto University, Faculty of Agriculture, Associate Professor., 農学部, 助教授 (50175105)

Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1992: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsBasin management / Agricultural water management / Water re-use / Regional water balance / Pollutant runoff / Complex Tank Model / 総合モデル / タンクモデル / 河川流出量 / 水文水利総合モデル / 山地流出量 / 水田用水取水量
Research Abstract

Irrigation generally needs much water and has an historically established priority over other uses. It also affects river discharge, and in drought periods their relation influences the basin management. To evaluate the water environment in a basin, which is strongly affected by the relationship, a simulation model was developed, based on the "Complex Tank Model". And it was used to analyze agricultural water demand and supply, a water re-use systems of irrigation, and return flow from farmland in a river basin in Japan. Results of analysis made clear that irrigation systems have built up effective re-use systems and that return flow forms the greater part of the river discharge. It was also noted that, in drought periods, the critical point deciding the water supply from the reservoir should be focused on and maintaining the adequate discharge at the point leads to the utilization of water resources. Pollutant run-off sub-model was set in the model and also used to estimate the nutrient concentration and load of the river water.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] Tsugihiro WATANABE: "Effects of irrigation on reservoir and basin management in drought." Proceeding of the Fourth Scientific Assembly of the International Association of Hydrological Sciences.(1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Tsugihiro Watanabe and Toshisuke Maruyama: "Effects of irrigation on reservoir and basin management." Proceeding of the Fourth Scientific Assembly of the International Association of Hydrological Sciences.(1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Tsugihiro Watanabe: "Effects of irrigation on reservoir and basin management in drought." Proceeding of the Fourth Scientific Assembly of the International Association of Hydrological Sciences.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 渡邉 紹裕: "水田圃場における流出特性" 応用水文. 3. 73-80 (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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