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Changes in properties of watershed and its conservation due to changes in land use in mountainous rural area

Research Project

Project/Area Number 04452295
Research Category

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

Allocation TypeSingle-year Grants
Research Field 農業土木
Research InstitutionEHIME University

Principal Investigator

SATO Koichi  EHIME Univ., Dep.of Agriculture., Professor, 農学部, 教授 (70033149)

Co-Investigator(Kenkyū-buntansha) TAKASE Keiji  EHIME Univ., Dep.of Agr., Associate Prof., 農学部, 助教授 (90133165)
櫻井 雄二  愛媛大学, 農学部, 教授 (00036427)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥6,900,000 (Direct Cost: ¥6,900,000)
Fiscal Year 1994: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1993: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥3,600,000 (Direct Cost: ¥3,600,000)
Keywordsmountanious rural area / farm land devastation / changes in land use / storm runoff / draft discharge / evapotranspiration / rill network / reduction of population due to moving out of young pepole / 傾斜地農業 / 流域保全 / 過疎化・高齢化 / 直接流出 / ピーク流量
Research Abstract

In this project, investigations and researches have been carried out for the management and development of mountainous rural area, where reduction of population and moving out of the young people are serios problems. The results are summarised as follows.
(1)The investigations of disasters on farm lands in such area showed that smaller but more disasters have occurred in comparison to the areas without such problems.
(2)Changes of land use due to devastation of farm lands and forests, or reclamation of farm lands for the developments of the area, have changed the type of vegetation, soil properties and drainage systems, which leads to the changes in the components of hydrologic cycle in watersheds such as storm runoff, low-flow runoff and evapotranspiration.
(3)Peak discharge and direct runoff from reclaimed farm lands were increased in comparison to the forest catchment. In the terraced paddy field catchment, peak discharge was greater, while direct runoff was as same as in the forest catchment.
(4)Comparison of draft discharge for a wet year showed that the amount of discharge in the forest catchment was greater than in the farm land one, but it was decreased for a dry year. It might be caused by the reduction of evapotranspiration which was influenced due to the changes in land use.
(5)The properties of rill network and mechanism of rill initiation have been investigated for land conservation and a routine to decide the optimum length of slope was developed to prevent the soil erosion and rill formation.
Finally, we have proposed the ideas for the management and development of mountanious rural area in Japan.

Report

(4 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] K.TAKASE: "Comparison of evapotranspiration between a reclaimed upland field and a forest catchment" 水文・水資源学会誌. 7(6). 495-502 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 黄 介生: "浸入の逓減と回復に関する実験及びGreen-Ampt式の適用" 水文・水資源学会誌. 7(5). 369-377 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Estimation of Low Flow in a Small Stream for Irrigation of Upland Fields in a Mountainous Area,Japan" Proc.of the Workshop of the Water Management and Crop Production in Semi-Arid and Humid Regions. 1-14 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 高瀬 恵次: "パソコンによる水位データの読み取りと流量表の作成" 農業土木学会誌. 第61巻2号. 95-100 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Role of Paddy Field in Recharging Groundwater in a Basin" Proc.of the International Workshop on Soil and Water Engineerring for Paddy Field Management. 12-20 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Comparison of Evapotranspiration between a Reclaimed Upland Field and a Forest Catchment" Jarnal of Japan Soc.Hydrol.& Water Resources. Vol.7 (6). 495-502 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] J.HUANG: "Experimental Study on the Decreasing and Re-Recovery of Infiltration and the Application of the Green-Ampt Model (in Japanese)" Jarnal of Japan Soc.Hydrol.& Water Resources. Vol.7 (5). 369-502 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Estimation of Low Flow in a Small Stream for Irrigation of Upland Fields in a Mountainous Area, Japan" Proc.of the Workshop of the water Management and Crop Production in Semi-Arid and Humid Regions. 1-14 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Readout of Analog Data of Water Level by a Digitizer and Tabulation of Discharge data by a Personal Computer (in Japanese)" Journal of Japan Soc.Irri., Dranaige and Reclamation. Eng.Vol.61 (2). 95-100 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Role of Paddy Field in Recharging Groundwater in a Basin" Proc.of the International Workshop on Soil and Water Engineering for Paddy Field Management. 12-20 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] K.TAKASE: "Comparison of evapotranspiration between a reclaimed upland field and a forest catchment" 水文・水資源学会誌. 7(6). 495-502 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 黄 介生: "浸入の逓減と回復に関する実験及びGreen-Ampt式の適用" 水文・水資源学会誌. 7(5). 369-377 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.TAKASE: "Estimation of Low Flow in a Small Stream for Irrigation of Upland Fields in a Mountainous Area,Japan" Proc.of the Workshop of the Water Management and Crop Production in Semi-Arid and Humid Regions. 1-14 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] 高瀬恵次: "パソコンによる水位データの読み取りと流量表の作成" 農業土木学会誌. 第61巻2号. 95-100 (1993)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.TAKASE: "Role of Paddy Field in Recharging Groundwater in a Basin" Proc.of the International Workshop on Soil and Water Engineering for Paddy Field Management. 12-20 (1992)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.TAKASE: "Estimation of Low Flow in a Small Stream for Irrigation of Upland Fields in a Mountainous Area,Japan" Proceeding of International Workshop on Irrigation TEL-AVIV,ISRAEL. (印刷中). (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 高瀬 恵次: "造成畑地域と山林地流域の蒸発散特性の比較" 農業土木学会大会講演会講演要旨集. 294-295 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 佐藤 晃一: "雨水保留量曲線による流域特性の考察" 農業土木学会大会講演会講演要旨集. 256-257 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 高瀬 恵次: "棚田流域の流出特性について" 農業土木学会中国四国支部講演会要旨集. 211-213 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 佐藤 晃一: "中国・四国地域の傾斜地農業の展開(1)" 農業および園芸. 第68巻. 34-40 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 高瀬 恵次・佐藤 晃一: "パソコンによる水位データの読み取りと流量表の作成" 農業土木学会誌. 第61巻(2). 1-6 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.TAKASE and K.SATO: "Estimation of Low Flow in a Small Stream for Irrigation of Upland Fields in a Mountainous Area,Japan" Proceeding of International Workshop on Irrigation TEL-AVIV,ISRAEL. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 高瀬 恵次・佐藤 晃一: "土地利用の異なる流域における水循環機構の比較(その1)" 農業土木学会中国四国支部講演会講演要旨集. 172-174 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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