基于WebGIS的基准地价动态更新研究

在原有基准地价更新方法基础上提出通过监测点地价测算地价指数，以更新基准地价的新思路，采用Browser／Server系统架构，使用ArcIMS作为网络地图发布平台，结合先进的ASP技术，开发网络基准地价动态更新系统，实现城市基准地价动态快速更新，基于WebGIS的基准地价动态更新系统，其功能有地价动态监测体系数据库、基准地价信息数据库的基本管理功能和基本空间分析功能，并且将其用于南京市市区基准地价的更新，取得了良好的效果。

Research on Dynamic Renewal of Datum Price of Urban Land Based on WebGIS

As an important part of land-price system, the datum price of urban land is dynamically changing, especially in the period of rapid economic growth in our country, land price of each city changes even more rapidly. In order to realize the target dynamic renewal of datum price of urban land, Browser/Server framework was adopted, ArcIMS acted as publisher of maps on internet, advanced ASP technique combined, and dynamic renewal of datum price of urban land database on internet developed. Dynamic-monitoring system information resources include monitoring points, marketing points and marketing samples, as well as maps, city common information, lot pictures, etc. Dynamic renewal of datum price of urban land database has such basic management and spatial functions in the information system based on WebGIS as editing and updating spatial and non-spatial data, searching and inquiring intormation, displaying, zooming in, zooming out, and roaming of vector data, buffer analyzing and thematic mapping, and so on. Based on this course, this paper puts forward to a new approach of dynamic renewal datum price of urban land applying dynamic-monitoring system of city-land price, on the basis of this work, the author applied this method to the renewal of datum price of urban land in Nanjing city, and got a good effect.