Design and Realization of Urban Land Grading and Evaluating Information System Based On GIS

As the base of land use system, land grading and evaluating possesses important status and role. It has become a very important mission of land management in coming future. Routine method is cumbersome, error-prone and low efficiency because of separating these two types of data. GIS, a graph and property management system, has powerful spatial analysis and data management capabilities. it is the inevitable trend of urban land grading and evaluating that GIS combined with the standard land price evaluation model, and make full use of their own superiority to complete the data processing and analysis task in the urban land grading and evaluating. This. paper discusses the structure and function of GIS-based urban land grading and evaluating information system, and study the design and realization method, with a view to provide the reference for land grading and evaluating in our country. The practice shows that the system possesses many characteristics, such as simple, practical, automation, open.