| Project/Area Number |
60420049
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| Research Category |
Grant-in-Aid for General Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
農業土木
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| Research Institution | Niigata University |
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Principal Investigator |
AKIRA NAGASAKI Niigata University・Professor, 農学部, 教授 (80018514)
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| Co-Investigator(Kenkyū-buntansha) |
SATO Osamu Niigata University・Assistant Professor, 積雪地域災害研究センター, 助教授 (00022624)
YOSHIDA Shoji Niigata University・Professor, 積雪地域災害研究センター, 教授 (80018530)
NAKANO Toshiro Niigata University・Assistant, 農学部, 助手 (40018544)
MISAWA Shin-ichi Niigata University・Assistant Professor, 農学部, 助教授 (30018791)
TOYOTA Masaru Niigata University・Professor, 農学部, 教授 (50018785)
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| Project Period (FY) |
1985 – 1988
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| Project Status |
Completed (Fiscal Year 1988)
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| Budget Amount *help |
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1986: ¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 1985: ¥7,500,000 (Direct Cost: ¥7,500,000)
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| Keywords | Field Reclamation at Improved Slope / Mechanism and Mesures for Drainage / Surface Drainage / Subsurface Drainage / 自記計測システム / 火山灰地 / 積雪・高冷地 / 表面崩壊 / 畑面排水不良 / 地表水流出機構 / 地下水浸造機構 / 開畑計画 / 法面崩壊 / 畑面俳水不良 / 地下水浸透機構 / 積雪 / 高冷地 / 排水不良 |
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| Research Abstract |
The authors had observed and analyzed in the experimental field of Niigata Prefecture, Tsunan-Machi (volcanic ash soil, snowy, high and cold areas) by the automatic observation facilities system in the past four years, as to surface and subsurface drainage discharge, groundwater table, soil moisture content, soil hardness, pF (soil moistrue suction), etc. As the sesult of comparative study between before and after operation drainage, it is known that the subsurface drainage is effective for the prevent of soil erosion, the conservation of slope, the drying of surface soil in the reclaimed agricultural land by the field reclamation at improved slope in volcanic ash soil, snowy, high and cold areas.
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