苏南丘陵地区土地利用变化对水量水质影响研究

Study on impact from land-use change on water quantity and quality within hilly area of Southern Jiangsu Province

水资源是关系到人类生存和发展的具有战略意义的自然资源,是土地资源发挥最大优势的基本条件,而土地利用方式的变化对水资源的量和面源污染起着制约作用。利用分布式水文模型对苏南丘陵地区句容市的土地利用变化下产流、产污进行模拟,分析土地利用变化前后对区域产流产污(氮和磷等)的影响,为当地土地利用方式提供指导。

Water resources are not only the natural resources with strategic significance for human survival and development, but also are the basic condition for giving full play to the advantages of land resources. However, the change of the land-use pattern plays a restrict role in water quantity and non-point pollutions. The runoff yield and pollutant loading under the landuse change in the region of Jurong within the area of Southern Jiangsu Province are simulated with the distributed hydrological model, in which the impacts before and after the land-use changes therein on the regional runoff yield and pollutant loading （ nitrogen and phosphorus） are analyzed, so as to provide a guidance for the selection of the pattern of the local land-use concerned.