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Inverse estimation of effective hydraulic properties of forest soils

Research Project

Project/Area Number 21580197
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionForestry and Forest Products Research Institute

Principal Investigator

KOBAYASHI Masahiro  独立行政法人森林総合研究所, 立地環境研究領域, 主任研究員 (50353686)

Co-Investigator(Kenkyū-buntansha) SHINOMIYA Yoshiki  独立行政法人森林総合研究所, 立地環境研究領域, 主任研究員 (20353716)
TSURITA Tatsuya  独立行政法人森林総合研究所, 立地環境研究領域, 主任研究員 (30353775)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords森林土壌 / 選択流 / 逆解析 / 有効水理特性 / TDR水分計
Research Abstract

Soil water content and flux were measured in Hinoki plantation forests with different soil types. Using observed data we conducted inverse estimations for "effective" hydraulic properties of the soils under rainfall. The estimated saturated water content of well-structured soil became very small when the soil dried. Preferential flow resulted by water repellency was thought to be the reason for the incomplete saturation. Inverse estimation should be a promising method to obtain effective hydraulic parameters of soils under physical nonequilibrium condition.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (10 results)

All 2012 2011 2010 2009

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (8 results) Book (1 results)

  • [Journal Article] Buckingham-Darcy式を適用した森林土壌下層部の鉛直水フラックス推定2009

    • Author(s)
      釣田竜也、吉永秀一郎、阿部俊夫
    • Journal Title

      日本森林学会誌

      Volume: 91 Pages: 151-158

    • NAID

      110007338866

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Presentation] 降雨時の体積含水率測定値を用いた土壌の水理特性の推定2012

    • Author(s)
      小林政広、清水貴範
    • Organizer
      日本森林学会大会学術講演集
    • Place of Presentation
      宇都宮大学(宇都宮市)
    • Year and Date
      2012-03-27
    • Related Report
      2011 Final Research Report
  • [Presentation] 降雨時の体積含水率測定値を用いた土壌の水理特性の推定2011

    • Author(s)
      小林政広、清水貴範
    • Organizer
      日本森林学会学大会
    • Place of Presentation
      宇都宮大学農学部(栃木県)
    • Year and Date
      2011-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] ポーラスプレートテンションライシメータによる森林土壌中の水・物質移動量の測定2011

    • Author(s)
      小林政広、吉永秀一郎、釣田竜也、伊藤優子
    • Organizer
      日本森林学会大会学術講演集
    • Place of Presentation
      静岡大学
    • Related Report
      2011 Final Research Report
  • [Presentation] 土壌有機物の濡れと森林土壌中の水移動2010

    • Author(s)
      小林政広
    • Organizer
      日本腐植物質学会講演会講演要旨集
    • Place of Presentation
      筑波大学(つくば市)
    • Year and Date
      2010-11-29
    • Related Report
      2011 Final Research Report
  • [Presentation] 逆解析による森林土壌の水分特性の推定2010

    • Author(s)
      小林政広、清水貴範
    • Organizer
      日本森林学会大会
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2010-04-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] 逆解析による森林土壌の水分特性の推定2010

    • Author(s)
      小林政広、清水貴範
    • Organizer
      日本森林学会大会学術講演集
    • Place of Presentation
      筑波大学(つくば市)
    • Year and Date
      2010-04-03
    • Related Report
      2011 Final Research Report
  • [Presentation] 森林土壌中の水収支観測2009

    • Author(s)
      小林政広・吉永秀一郎
    • Organizer
      2009年度土壌物理学会大会
    • Place of Presentation
      明治大学生田中央校舎
    • Year and Date
      2009-10-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] 森林土壌中の水収支2009

    • Author(s)
      小林政広、吉永秀一郎
    • Organizer
      土壌物理学会大会講演要旨集
    • Place of Presentation
      鳥取大学(鳥取市)
    • Year and Date
      2009-10-23
    • Related Report
      2011 Final Research Report
  • [Book] 第12章土壌のでき方と性質、「森のバランス植物と土壌の相互作用」2012

    • Author(s)
      高橋正通、小林政広
    • Publisher
      東海大学出版会
    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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