Inverse estimation of effective hydraulic properties of forest soils
| Project/Area Number |
21580197
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | Forestry and Forest Products Research Institute |
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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)
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| 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)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| 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)
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| Keywords | 森林土壌 / 選択流 / 逆解析 / 有効水理特性 / TDR水分計 |
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| 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.
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Report
(4 results)
Research Products
(10 results)
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[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
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