Effect of fish conservation in agricultural drainage canals with environmentally friendly land consolidation project
| Project/Area Number |
16K18773
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Rural environmental engineering/Planning
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| Research Institution | The University of Shiga Prefecture |
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Principal Investigator |
Minagawa Akiko 滋賀県立大学, 環境科学部, 准教授 (70603968)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 環境配慮 / 農業水路 / 魚類 / 魚溜工 / 合流桝 / 堆砂 / 洗掘 / 農業排水路 / 堆積 / 土砂 / 環境配慮施設 / 圃場整備事業 / 堆積抑制 / 農業工学 |
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| Outline of Final Research Achievements |
Fish pool structures and environmental conscious confluent structures have been installed in agricultural canals as eco-friendly structure on many land consolidation projects. Though these structures were almost effective as fish wintering and refuging habitat, these were not serve as places to spawn habitat. In addition, when flood occur, fish which lived in a drainage river washed out in flood and population could not expected recover in agricultural drainage canals from the drainage river. Therefore, reproduction, wintering, and refuging habitat need to ensure in agricultural canal concurrently. Sedimentation were likely suppressed in environmental conscious confluent structures than in fish pool structures and water depth more reserved for fish wintering in former than in later structures.
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| Academic Significance and Societal Importance of the Research Achievements |
全国で行われてきた環境配慮型の圃場整備事業の魚類保全効果を検証した例は数件しかなく、貴重な事例と言える。魚溜工、環境配慮型合流桝ともに施工方法が簡単であるため、今後、全国の圃場整備事業において適用される際に繁殖環境の確保に留意することでより効果的に魚類を保全することができると考えられる。
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Report
(5 results)
Research Products
(6 results)
