2011 Fiscal Year Final Research Report
Study on the origin and the organic matter composition of suspended solids in a river system
| Project/Area Number |
21380147
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Kitasato University |
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Principal Investigator |
SHIMA Eikich 北里大学, 獣医学部, 教授 (40196457)
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| Co-Investigator(Kenkyū-buntansha) |
MAIE Nagamitsu 北里大学, 獣医学部, 講師 (00453514)
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| Project Period (FY) |
2009 – 2011
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| Keywords | L-Q式 / 全リン / 全窒素 / 懸濁物質 / 有機物組成 / 水質汚濁 / 蛍光分析 / 長期モニタリ |
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| Research Abstract |
(1) Loading characteristics of total N(TN) and total P(TP) of the Takase River systemwas modeled using a loading-discharge equation, variation of whichwereexplained by the watershed characteristics.(2) Annual loadingsof TN and TPto Lake Ogawara from major inflowing riverswereestimated to be 1.1×10^3t and 2.7×10t, respectively.(3) Loading of TP and TN during puddling period of rice paddieswas found to be significant for the former, but not for the latter.(4) Organic matter composition of suspended solidswas found to be variableamong rivers and season.
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