Research On Land Gradation And Evaluation Methods And System Implementation

With the rapid economic development, people began to pay more attention to land price and utilization. The town has gradually become the land market which is fully functional. And land transactions has moved to a standard stage. Traditional land management cannot follow the pace of land information updating. Therefore, it is necessary to study the method of land gradation and evaluation, and develop the information system for management. The research in this area cannot only improve the efficiency and standardization of land gradation and evaluation, reduce human factors effectively.Firstly after the comparison of three kinds of gradation methods commonly used and the land characteristics in this paper, finally take the Multi-factor comprehensive evaluation method, which ultimately determine the level of land. it proposed using the combination weighting method to calculate the factors weight in the process of land gradation. Combination weighting method to avoid the defects of single weighting method, which makes the factor weight more accurate and the final land gradation more realistic.To complete the analysis of spatial overlay and buffer based on dividing cells. use the the total frequency statistics method to score the level, which determine the final the gradation result. Then get the research of evaluation methods. Land evaluation method based on land gradation, calculation of the different types of land. The standard land price calculation process of sample data, the establishment of land price model, the calculation model of standard land price. Develop land price correction system based on the standard premium, revise andupdate the benchmark land price.At the end, it talks about the designing and actualization of land gradation and evaluation system. Design the schema of land gradation and evaluation system, the database and function module of land gradation and evaluation system. On the.NET development platform, use ArcEngine to develop, secondly with the C# language and use the ArcSDE to access the Spatial data in SQL Server as the backstage database. We compared the system results with the manual calculation results. It shows that the method we use and the system we developed in the paper has strong practicability, which can correctly and efficiently complete the land gradation and evaluation process.