Investigation of nutrient concentration characteristics in river water at a fruit-rich watershed
| Project/Area Number |
21560541
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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 |
Hydraulic engineering
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| Research Institution | Wakayama University |
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Principal Investigator |
EGUSA Nobuyuki 和歌山大学, システム工学部, 准教授 (00283961)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 水圏現象 / 水質汚濁 / 分布型水文流出モデル / 汚濁負荷量解析 / 紀の川流域 / 水工水理学 / 水循環 / 水資源 / 分布型水流出モデル / 分布型水流出解析 |
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| Research Abstract |
Water environment in the Kinokawa River watershed was estimated by field surveys and numerical simulations. Fruit growing is very active in this watershed. As a result, a method to calculate nutrient emission factors using existing information based on mass balance in orchard was established. Moreover, the numerical simulations using the calculated emission factors could demonstrated seasonal changes in TN concentration in a branch of the river and huge increases in TP concentration in the middle part of the river.
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Report
(4 results)
Research Products
(9 results)
