A study on wetland resources and environment in Guangdong by GIS

Guangdong Province is rich in wetland resources. Because of economic construction and urbanization development, wetland resources and environment have been damaged in varying degrees. For protection and rational use of wetland, the wetland resources and environment information system (WREIS) is suggested to be set up by GIS technique, which would consist of five key components: data sources, data pretreatment system, application and analysis system, aided decision system, and output. The functions of the WREIS would include present situation analysis, assessment and prediction, planning and protection, and resources exploitation. A case study of the WREIS for Zhanjiang City is made, in which an evaluation model of natural suitability is constructed, and Arcview, the tool software is used to provide interface and second development environment for users. It is shown that the results are satisfactory.