基于Kriging技术的城市基准地价评估研究

本研究以杭州市中心城区住宅基准地价评估为研究对象，利用地统计学中的空间局部内插Kriging技术，建立地价等值图，并通过与市场价格的比较分析，证实该方法的可靠性，最后探讨了该方法在土地定级估价和基准地价评估中的具体应用。

A STUDY ON KRIGING-BASED URBAN BASE AND STANDARD LAND VALUE ASS ESSMENT--TAKING HANGZHOU CITY AS A CASE

Payment for the land use is bound to the problem of land value. Therefore, it is significant to improve accurate of land value assessment. This paper analyzes the defect of the existing base and standard land value assessment in China, and provides a new method that is based on Kriging. This paper is a case study on Hangzhou city. Based on GIS software, the spatial database of residential land value specimen in Hangzhou is established, and the specimen is proceeded by Geostatistics analysis, such as semi-variance function analysis. Based on analysis of semi-variance function structure, the models of semi-variance function are fitted. Using Kriging process, the thematic map of land value in Hangzhou is established. Finally the advantage of Kriging-based urban base and standard land value assessment is summarized. It also provides the thinking relevant to concrete appliance.