| Project/Area Number |
07660318
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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 |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Gifu University |
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Principal Investigator |
MATSUMOTO Yasuo Gifu University, Faculty of Agriculture, Professor, 農学部, 教授 (30021728)
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| Co-Investigator(Kenkyū-buntansha) |
MIYAKE Yasunari Gifu University, Faculty of Agriculture, Research Associate, 農学部, 助手 (60262755)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1996: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1995: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Land Use Forms / Sloping Farmlamd / Furrowing Practices / Soil Erosion / Soil Conservation / Diluvial Ash Soil / Injury by Continuous Cropping / Agricultural Infrastructure Improvement |
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| Research Abstract |
From the viewpoint of sustainable agriculture in sloping farmlands, we analyzed soil erosion conditions affected by the furrowing practices, the arrangement of roads and waterways and farmars' conservation practices. Selecting the test area composed of reclaimed upland fields which had been cropped with a Japanese radish in wide area by monoculture, we read the land use forms and the direction of ridges and furrows on air photos by radio controlled airplane and surveyed the actual furrowing practices and soil erosion patterns to make the sediment source clear, and sent out a questionaire to farmers on their conservation practices. The results obtained were as follows.
1. Analysing the geomorphic features of furrowing practices showed that furrows tended to be formed in a more gentle direction along the field boundary and caused soil erosion at the furrow ends.
2. Bare fields without furrows had yielded much more sediment than with furrows.
3. Effective soil conservation practices need a suitable field arrangement and a grass waterway along the field border to recompense for many farmers' efforts to conserve.
4. Farmers had partly paid attension to cropping workability and draining systems without injury by continuous cropping to bring soil erosion.
5. Though a rotational cropping system was essential to soil conservation, vergin lands were required for the profitable operate of a small farmer.
6. Effective infrastructures which improve cropping workability and drainage systems and the conservation practices are combined to conduct the sustainable agriculture.
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