| Project/Area Number |
19380138
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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 | Kyushu University |
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Principal Investigator |
HIRAMATSU Kazuaki Kyushu University, 大学院・農学研究院, 教授 (10199094)
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| Co-Investigator(Kenkyū-buntansha) |
黒澤 靖 九州大学, 熱帯農学研究センター, 准教授 (70128114)
原田 昌佳 九州大学, 大学院・農学研究院, 准教授 (80325000)
森 牧人 高知大学, 農学部, 准教授 (60325496)
福田 信二 九州大学, 熱帯農学研究センター, 助教 (70437771)
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| Co-Investigator(Renkei-kenkyūsha) |
KUROSAWA Kiyoshi 九州大学, 熱帯農学研究センター, 教授 (70128114)
HARADA Masayoshi 九州大学, 大学院・農学研究院, 准教授 (80325000)
MORI Makito 高知大学, 教育研究部・自然科学系, 准教授 (60325496)
FUKUDA Shinji 九州大学, 熱帯農学研究センター, 助教 (70437771)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
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| Keywords | 流域統合管理 / 農業生産 / 都市化・混住化 / 水循環 / 物質循環 / アジアモンスーン地域 / 数理モデル / 自然現象観測・予測 |
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| Research Abstract |
In this research, we have been aiming at the development of integrated water environment management models with the function of predicting and evaluating the watershed nutrient runoff loads of nitrogen and phosphorous from urbanizing agricultural watersheds in Asian monsoon region. The distributed-parameter models have been constructed by utilizing GIS techniques together with the detailed watershed information such as DEM, land utilization, river network and point sources. The prediction accuracy has been improved by innovating artificial intelligence techniques and time-frequency analyses when modeling sub-processes of nutrient runoff loads from various sources and water quality dynamics in closed water bodies, because it is generally difficult to quantify those sub-processes accurately.
The model construction and validation have been conducted at two watersheds that have entirely different watershed characteristics, the Chikugo River watershed and the Zuibaiji River watershed. The Chikugo River watershed has a largest watershed area in Kyushu Island, Japan and a huge variety of land utilization in the watershed, while the Zuibaiji River watershed is located at the west of Fukuoka City, Japan and a typical urbanizing agricultural watershed with a relatively small watershed area. The models have been constructed and validated in the watersheds by quantifying each of sub-processes and connecting sub-models with each other.
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