Application of GIS in Water Pollutant Capacity Total Control

The capacity total control, in the field of water pollution prevent, is more effective than the traditional mandatory total control. In this article, GIS was applied into the capacity total control of water pollutant. Using the ArcSDE technology, a spatial geodatabase that included many kinds of spatial information and attribute data was built. Based on it, a spatial model system of the water pollutant capacity total control (WPCTC) under GIS was developed by the redevelopment in Delphi, VBA and ArcGIS environment. By applying many types of GIS functions, such as buffer analyzing, linear referencing and spatial distance measuring etc, this model system could greatly increase the efficiency and precision of the total control, and had the characteristic of visibility.