| Project/Area Number |
22780218
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
SAITO Hirotaka 東京農工大学, 大学院・農学研究院, 准教授 (70447514)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2010: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 土壌物理 / 不飽和水分移動 / 逆解析 / 地中レーダー / 空間分布 / 不飽和水理特性 / 地中レーダ / 地下灌漑 |
|---|
| Research Abstract |
The main objective of this study was to estimate the spatial distribution of soil hydraulic parameters from changes in soil moisture content collected from a non-destructive method. In this study, surface ground penetrating radar(GPR), a non-destructive geophysical method often used in natural resource exploration, was used 1) for visualizing unsaturated water flow, and 2) for estimating the spatial distribution of soil hydraulic properties that reproduce measured moisture content dynamics well. In this study, a lab experiment was conducted using a large lysimeter and a field study was conducted at Sakae-cho experimental field in Tokyo University of Agriculture and Technology to obtain the spatial distribution of hydraulic conductivity for the surface soil from observed moisture content data.
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