Abstract:

Because of reform and opening up, our country has achieved a major breakthrough in the industrialization and urbanization. However, as urban land expanded sharply, it is increasingly significant that the country faces the problem of extensive inefficient of urban land. Urban land is the space carrier of urban economic, society and environment. While the utilization efficiency of urban land is directly related to the urban social and economic development and living environment, it has an important practical significance of the urban land utilization optimizing configuration to discuss the efficiency of urban land utilization spatialtime pattern evolution and the mechanism of driving. To strengthen urban land utilization efficiency spacetime pattern evolution and the driving mechanism, it could help to promote the study practical significance of urban land utilization efficiency. In this study, the Yangtze River economic delta was selected as the research object; the evaluation index system of land utilization efficiency was built up; and DEA model method and ESDA statistics index were used to measure urban land utilization efficiency value of the Yangtze river economic delta. This study analyzed the evolution of the spatial time pattern of the urban land utilization efficiency from 2000 to 2012, lastly using Tobit linear regression model to reveal the driving mechanism of land utilization efficiency pattern evolution in the Yangtze river economic belt. The results showed that on the whole, urban land utilization efficiency was on the rise, and technical efficiency was higher than comprehensive efficiency and scale efficiency since 2000. Urban land utilization efficiency on global presented a positive spatial autocorrelation, the efficiency LL (lowlow) concentrated areas were mainly located in western plateau area of Sichuan where spatial distribution pattern was stable; but the efficiency HH (highhigh) concentrated areas were mainly distributed in Shanghai and the southern of Jiangsu, extending their way to ShaoxingHangzhou and Changjiang in Anhui. Urbanization, economic development, industrial structure, technology level and land market comprehensively drove spatial pattern evolution of urban land utilization efficiency. Meanwhile, it should point out that, the paper also has limitations. The paper only chose the analysis data (2000-2012) to study the basic characteristics of urban land utilization efficiency, so the time scales was shorter, and ignored the evolution of a longer time scales pattern and differentiation characteristics of urban land utilization efficiency. The paper chose the city as spatial analysis scale, and ignored the smaller county scale spatial interaction relations. In addition, the paper needs to be refined on the pattern evolution of urban land utilization efficiency, and the comprehensive effect of driving mechanism