2009 Fiscal Year Final Research Report
Management of Agricultural Drainage Canals for Reducing Outflow Load
| Project/Area Number |
20880016
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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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 | Kyoto University |
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Principal Investigator |
HAMA Takehide Kyoto University, 大学院・農学研究科, 助教 (30512008)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 農業排水路 / 底泥 / 水田 / 窒素 / リン / 循環灌漑 / 琵琶湖 |
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| Research Abstract |
Nitrogen, phosphorus and carbon contents in the bottom sediment in an agricultural drainage canal in a paddy-field district around neighboring Lake Biwa were investigated in the present study. Nitrogen content in the sediment was high during the irrigation period and low during non-irrigation period. The temporal variation of carbon was similar to that of nitrogen. It was shown that phosphorus adsorption by the sediment depended largely on water temperature. It was concluded that water management practices (dredging of the sediment and closing of the floodgate) at the beginning of non-irrigation period was important for reducing effluent load from the paddy-field district.
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[Presentation]2008
Author(s)
松田圭介, 中村公人, 濱武英, 川島茂人
Organizer
農業農村工学会京都支部研究発表会
Place of Presentation
福井県
Year and Date
2008-11-06
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