[Development of MOIMS on environmental data distribution].

'Environmental WebGIS system for Ganjiang Watershed', based on 1:250,000 topographic spatial database and environmental database of Jiangxi province, was developed. In the system, a hybrid strategy was adopted. And the GIS analysis functions of MapObjects and Map server functions of MOIMS were integrated in the system. Users can use GIS functions, such as zooming in, zooming out, panning, making theme maps, finding geographic objects by environmental attribute values etc., through web browser on the client computers. With the application of the WebGIS system, expanding the GIS users' range, making the GIS operation easily, and assistanting environmental management and decision can be completed.