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Estimation method of groundwater origin in a landslide block based on snowmelt effect and regional groundwater flow system

Research Project

Project/Area Number 25892030
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Rural environmental engineering/Planning
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

TSUCHIHARA Takeo  独立行政法人農業・食品産業技術総合研究機構, 農村工学研究所・資源循環工学研究領域, 主任研究員 (30399365)

Project Period (FY) 2013-08-30 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords地すべり / 地下水涵養 / 融雪 / 同位体 / 融雪水
Outline of Final Research Achievements

The stable isotope compositions of deuterium and oxygen-18 of groundwater, and age-dating using an inactive gas and radioisotope indicate the multi-layered groundwater flow system in the landslide block, and the difference of recharged areas including the outside of the landslide brock. The clear and similar altitude effect of the stable isotope ratios of stream water in the regional watershed was observed in 3 seasons except snowmelt season. The stable isotope ratio of spring run-off in the snowmelt season is different from in other seasons, and therefore the altitude effect except in the snowmelt season can be effective for estimating groundwater recharged areas. It is thus deduced that when used together, these environmental tracers applied in this study can help to know the groundwater flow systems and the recharged area in the landslide block in snowy region.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • Research Products

    (4 results)

All 2014 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results)

  • [Journal Article] 六フッ化硫黄を指標とした山形県七五三掛地すべり地における地下水の年代推定2014

    • Author(s)
      土原健雄,奥山武彦,吉本周平,白旗克志,石田 聡
    • Journal Title

      農業農村工学会論文集

      Volume: 294 Pages: 65-74

    • NAID

      220000165023

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 水素・酸素安定同位体比の高度効果からみた地すべり地の地下水涵養源の検討2014

    • Author(s)
      土原健雄,奥山武彦,吉本周平,白旗克志,石田 聡
    • Organizer
      農業農村工学会
    • Place of Presentation
      朱鷺メッセ新潟コンベンションセンター(新潟県新潟市)
    • Year and Date
      2014-08-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] 水素・酸素安定同位体比,六フッ化硫黄,トリチウムを指標とした地すべり地における地下水流動特性の検討2014

    • Author(s)
      土原健雄,奥山武彦,吉本周平,白旗克志,石田 聡
    • Organizer
      日本地下水学会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2014-05-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 降水・河川水・地下水の長期同位体変動からみた地下水浸透特性の検討

    • Author(s)
      土原健雄,吉本周平,石田 聡,白旗克志
    • Organizer
      日本雨水資源化システム学会
    • Place of Presentation
      島根大学(島根県松江市)
    • Related Report
      2013 Annual Research Report

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Published: 2013-09-12   Modified: 2019-07-29  

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