AN INTEGRATED SYSTEM FOR NONPOINT SOURCE POLLUTION MODELLING AND MANAGEMENT

Nonpoint source pollution (NSP) is a dominant contribution to many aquatic area in China, and a relatively new topic which must take into account the country characteristics, different from those of developed countries. The paper presents the development of an Nonpoint Source Decision Support System (NPSDSS) integrated with a model of nonpoint source pollution processes, a geographic information system (GIS) database that synthesizes spatially referenced data, and an expert system. The system has been applied in the Dianchi Lake catchment area with good perspectives for NSP management.