2011 Fiscal Year Final Research Report
Transition of nutrient balance in rural and peri-urban areas through urbanization in a river basin of Vietnam
| Project/Area Number |
21860049
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Keywords | 土木環境システム / 栄養塩類 / マテリアルフロー / ベトナム / Nhue-Day川流域 / 都市化 |
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| Research Abstract |
Nutrient balances may have changed drastically through urbanization in Nhue-Day river basin in Vietnam. To know the balances and their transition, this study estimated material flows of nitrogen and phosphorus in the basin with focus on waste-oriented regional resources such as human and livestock excreta. As results, agriculture has played a crucial role for nutrient recycling in this area. It was indicated that nutrients input to agriculture and output to the environment have increased recently ; the contribution of livestock excreta to the increase have risen due to a recentincrease of the livestock number through urbanization in the basin.
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