研究城市建设用地利用效率时空格局演变及驱动因素,对城市可持续发展具有重要的理论及实践意义。本文通过构建DEA模型测度了2009-2013年中国31个省、市、自治区城市建设用地利用效率,并利用空间统计模型分析其时空格局演变特征,运用灰色关联度模型探究了城市建设用地利用效率时空分异的主要驱动因素。研究结果表明:2009-2013年,中国省际城市建设用地利用综合效率呈上升态势,但效率不高,表现出显著的空间差异;中国省际城市建设用地利用效率呈现空间自关联性,且局部空间格局演变特征表现为综合效率空间格局变化不大,纯技术效率总体空间格局变化显著,规模效率空间格局与综合效率趋于一致;城市建设用地利用效率空间格局演变主要受城镇化水平、经济发展水平、产业结构、科技水平、区位条件、土地市场化程度等6个因素影响,但各个因素在不同研究期的作用大小存在差异。
Exploring spatial and temporal pattem evolution and driving factors of urban construction land use efficiency has important theoretical and practical significance for urban sustainable development. Here, 31 provinces in China were taken as the research object to measure urban construction land use efficiency using data envelopment analysis. At the same time, ArcGIS was used to explore the spatiotemporal characteristics of urban construction land use efficiency evolution. Driving factors are discussed using grey correlation modeling. We found that from 2009- 2013, provincial urban construction land use efficiency increased, but the efficiency value was not high. Spatial differences in urban construction land use efficiency were remarkable. Overall, the use efficiency of urban construction land in China shows significant spatial autocorrelation. The evolution of local spatial patterns was characterized by the following features: comprehensive efficiency of spatial pattern change was small and pure technical efficiency of the overall spatial pattern change was large. The overall spatial pattern of the scale efficiency was consistent with that of comprehensive efficiency, and the overall pattern changed little. The urbanization level, level of economic development, industrial structure, degree of marketization of land, level of science and technology and location conditions all affect urban construction land use efficiency, but the role of these factors in different research issues differed.