Research On Potential Evaluation Of Intensive Utilization Of Urban Land

Under the guidance of urban planning and overall plan of land utilization and relevant regulations, Intensive Utilization of Urban Land (IUUL) is how to mine the potention of the urban land and implement the continuable development of the city and the country economy, which is also quite necessary to currently build the economical society and relieve the imbalance between supply and demand of the urban land.To use the urban land reasonably and effectively, it is necessary to evaluate the potention of the urban land, which is convenient for the government to make decisions.And finally, the aim of intensive utilization of the urban land will be achieved. Therefore, it is quite urgent to research on the methods of potention evaluation and develop the potention evaluation system.Potential Evaluation of Intensive Utilization of Urban Land (PEIUUL) is consideres as research object, and the methods and index system of PEIUUL is confirmed.To deal with the problems and the shortages of PEIUUL, this paper makes a research on the key technology of the auto-partition method of urban function regiones and the difference analysis between the parcel and the plan.Based on the theory of Geographic Information System (GIS) and the technology of Spatial Data Mining (SDM), the PEIUUL system is designed and implemented.The research work is as follows:According to the analysis and research on the results of PEIUUL of the other experimental cities, this paper confirms the methods and index system of PEIUUL, which provides the basis for PEIUUL project.During the reseach on the evaluation of the function region, the auto-partition algorithm is put forward, which is based on the reseach of the self-organization feature map. This method effectively solves the disadvantages of function region partition by hand.According to the analysis of spatial database, this paper confirms the difference-analysis elements of the urban land utilization between the parcel and the plan, and implements the difference anylysis, which provides the comparable data for the development of the IUUL.Design and develope the PEIUUL system.This paper makes an experiment on the parcel land of Chengdu, and ends with a good result, which is quite helpful for other cities to do the research on PEIUUL.Based on .NET and the COM technology of GeoMedia, the PEIUUL system is designed and developed with the characteristics of good practicability and strong openness, and provides the PEIUUL project with both technological and decision-making supports. The application of the results will promote to evaluate the potential of the remnant urban land, and improve the ability to supply and manage the urban land.