基于系统聚类的鄱阳湖流域水功能区划研究

水功能区划是水环境管理和水污染物总量控制的重要基础。以县级行政区划为最小划分单元,根据选定的社会经济指标,采用系统聚类的方法,将鄱阳湖流域内各县进行分类。结合流域内水质状况、各县的其它社会经济条件和历史的水功能区划成果,确定各县的主导用水功能,生成鄱阳湖流域水功能区划图。结果表明:鄱阳湖流域主要水功能为农业用水,而工业用水区主要分布在江西省北部,渔业用水区主要分布在环鄱阳湖区。该区划结果兼顾了水资源的流域和区域管理的优点,能较好的适应目前水资源区域管理的现状,对水资源的合理开发与有效利用提供科学依据。

Water function regionalization in Poyang Lake watershed based on hierarchical clustering

Water function regionalization (WFR) is the basis of water resources management and the total amount of water pollutant control. Taking county as the lest unit, according to chosen social economic indicators,the paper used hierarchical clustering method to class every county in Poyang Lake basin. By using hierarchical clustering method, the counties within Poyang Lake basin were clustered according to the socio-economic conditions. And then, the WFR partition principle of Poyang Lake watershed was formulated by reference to social and economic conditions and current WFR status. From the results of hierarchical clustering, WFR map of Poyang Lake watershed was generated and the dominant water functions of each county were determined. From the water function regionalization map, agriculture water dominates the water function in Poyang Lake watershed, the industrial water regions mainly locate in the northern of Jiangxi province, and fishery water regions mainly distribute around the Poyang Lake. Therefore, the regionalization result thought the advantages of watershed and region management of water resources and could better fit the situation of region management of water resources, and can provide a scientific basis for the reasonable development and sustainable utilization of water resources in Poyang Lake watershed.