| Abstract: | One main task of "West Development"is to reconstruct theecological systems in the western part of China.The Chinese govemment made a great decision of "Returning the farmland forest or forest or grass in regions of heavy erosion". The policy to encourage farmers returning their land is that government gives the farmer some money or some food in return if he plants trees or grass on the land. Guizhou Province is one of the west provinces in a typical carst mountainous area, more than 90% of the area is mountain. The conditions for ecological reconstruction are very different among villages.The main concerns are according to the differences in geography and climate. This is the main reason to propose the project of "GIS based decision support system". It is necessary to integrate different sources of data, analysis tools and models for the decision support system. Some of these data sources are rigorous GIS types. Some of them are indirectly related to GIS.To the success of decision support, evaluating the reliability of different information sources is crucial when the received data reveal incomplete, inaccurate and inconsistent. The objectives, strategy, architecture and technical challenges are discussed in the paper. |
