Design And Implementation Of Agricultural Land Appraisal Information System

As the capitalization of resources management and the consolidation of the city land market and county land market, the agriculture land appraisal has received much attention. Therefore, it is a great significance to develop a system with geography space analysis and specialty model function.The Agriculture Land Appraisal system acquires its theory and method foundation by integrating correlation theories and summarizing the practice experience of applying these methods.By using work-flowing concept, the system has be designed by analyzing its working flow in fact with entity-relation model and data flow methods. By analyzing every methods and finding their key steps the modules is designed. For calculating the weights, the factor's standardization, and the scores the statistics and fuzzy mathematics methods are imported. Thus the method is more objective.Comparing the development methods of GIS at present, Actives models integrated second development method is selected. The combination of specialty model and GIS technology is finished by the innovative method. Then, the system is realized by embedding the SuperMap Actives into Visual Basic 6.0.By using QuZhou County as a sample area, the space database is established. Then by data-inputting the cruising data and experimental data, the attribute database corresponding is established. Therefore using specialty analysis and calculate modals, the Agriculture Land Appraisal of QuZhou county is finished step by step. In the course of application, the system has be verified and modified.