A STUDY OF URBAN INTENSIVE LAND EVALUATING SYSTEM
- 1Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, 610068 Chengdu, Sichuan, China
- 2The Bureau of Land Resources Chengdu, 610072 Chengdu, Sichuan, China
- 3Information Centre of the Bureau of Land Resources Chengdu, 610072 Chengdu, Sichuan, China
Keywords: Evaluation System, Urban Intensive Land Use, Dynamic Data Extraction Method, WebGIS, B/S
Abstract. The contradiction of land supply and demand is becoming increasingly prominent in China. The increasing efficiency of land use is an important means to resolve the conflict. We propose a scientific approach for promoting the urban intensive land use. In this paper, an evaluation system of urban intensive land use is programmed. It is designed to change the manual way of collecting index data and building index system to a dynamical way. The system improves the efficiency and accuracy of the evaluation of urban intensive land use. It achieves intensive evaluation on three scales: macro-level, medium-level and micro-level.
We build two data extraction methods. One is XML-based meta-data exchange method that obtains index data from the cadastral database. Another is data monitoring method that writes the index data to the evaluation database at real time. Database technologies are used to calculate index values and build index systems dynamically. GIS technologies are use to achieve three scales evaluation of urban intensive land use.