Research on the hydrological cycle model of basin ecosystem and the system for water resource management

流域生态系统水文循环模型及水资源管理体系研究

• 批准号: 13838012
• 负责人: OGAWA Shigeru
• 金额: $ 2.37万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13838012/
• 关键词: Hydrological cycle; Forest Hydrology; L-Q equation; Eutrophication; Water resource management; Evapotranspiration; Groundwater; LTER; 林内雨; 山火事後の植生回復; 沿岸海域; 洪水; 懸濁; 窒素; リン

The objectives of this research are to clarify the function of "Basin ecosystem" in the hydrological cycle and to construct "Ecosystem water circulation model" and "The synthetic basin ecosystem water circulation model" for the basin water resource management system. The amount of evapotranspiration and the formation mechanism of the river water quality in the areas of forests and the cultivated fields were studied. Penman-Monteith equation was applied for the estimation of total evapotranspiration of each area. Various field research works were conducted to verify the models. Furthermore, the formation process of the quality of groundwater and the coastal sea area were evaluated. The characteristics of vegetation that covers the upper reaches basin gave great influences on the water quality of the lower reaches river water and the flow characteristic. It is important to estimate each stand type of evapotranspiration and its distribution for understanding baseflow generation in the steep forested chatchments. Our results suggested that the unmanaged artificial forest watershed worked as a diffuse source of nutrients. Throughout our research works, importance of the long-term ecosystem research was suggested.

本研究的目的是明确“流域生态系统”在水循环中的作用，构建流域水资源管理系统的“生态系统水循环模型”和“流域综合生态系统水循环模型”。研究了林区和耕地区河流的蒸散量和水质形成机制。采用Penman-Monteith方程估算各区域的总蒸散量。进行了各种实地研究工作来验证模型。此外，还对地下水和沿岸海域水质的形成过程进行了评价。上游流域植被覆盖的特点对下游河水水质和流量特性影响很大。估算各林分类型的蒸散量及其分布，对于了解陡峭森林流域基流的产生具有重要意义。我们的研究结果表明，未经管理的人工森林流域是一个分散的营养源。在我们的研究工作中，提出了长期生态系统研究的重要性。

项目成果

Ogawa S, Otsuki K, Haga H: "Forest hydrology in Japan and proposal of long-term forest hydrological research network"Proceedings of International Expert Meeting of Forests and Water, 20-22 November 2002, Shiga, Japan. 73-86 (2003)

Okawa S、Otsuki K、Haga H：“日本森林水文学和长期森林水文学研究网络的提案”国际森林与水专家会议记录，2002 年 11 月 20-22 日，日本滋贺。

Nagafuchi O, Ide J, Otauki K, Kume A, Ogawa S: "Runoff nutrients from a small watershed coverd by an afforested area of Japanese Cypress"9th International Specialized Conference on Watershed & River Basin Management, Edinburgh Scotland, UK (IWA). (CD-rom)

Nagafuchi O，Ide J，Otauki K，Kume A，Okawa S：“来自日本柏树绿化区覆盖的小流域的径流养分”第九届国际流域专业会议

Umgiesser G, Yanagi T: "Modeling of the circulation, residual currents and residence times in Hakata Bay, Japan"Reports of Research institute for applied mechanics, Kyushu University. 122. 49-57 (2002)

Umgiesser G、Yanagi T：“日本博多湾环流、剩余流和停留时间的模拟”九州大学应用力学研究所的报告。

Sato Y, Otsuki K, Ogawa S.: "Estimation of annual canopy interception of Lithoucarpus edulis"Bulletin of the Kyushu University. 83. 15-29 (2002)

佐藤 Y、大月 K、小川 S.：“紫檀每年冠层截获量的估计”九州大学通报。

Umgiesser G., Yanagi T.: "Modeling of the circulation, residual currents and residence times in Hakata Bay, Japan"Reports of Research institute for applied mechanics, Kyushu University. 122. 43-57 (2002)

Umgiesser G.、Yanagi T.：“日本博多湾的环流、剩余流和停留时间的模拟”九州大学应用力学研究所的报告。