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

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 land-use 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.