2003—2012年中国城市土地集约利用的空间集聚演化及分异特征研究

Analysis on the Characters of Spatial Agglomeration Evolvement and Disparity of the Intensive Urban Land Use in China from 2003 to 2012

研究目的:研究土地集约利用程度的空间集聚演化及其空间分异特征,为新型城镇化背景下优化土地集约利用战略提供启示和依据。研究方法:理论分析法,全局主成分分析法,ESDA法,统计指标法。研究结果:(1)城市土地集约利用度存在显著的空间相关性,且有效作用范围为0—600 km;中心—边缘效应明显,形成了以东部沿海为中心、以中西部地区为边缘的中心—外围结构;(2)城市土地集约利用水平差异明显但呈收敛趋势,区域内差异是造成总体差异的主要原因;(3)城市土地集约利用水平具有典型的城市规模等级递增效应,不同规模城市间存在着土地集约利用的"二元结构"。研究结论:要实行差别化的城市发展战略,充分考虑城市土地利用的空间依赖性和溢出效应,因地制宜制定土地政策,同时应高度重视区域内城市土地集约利用的"两极分化"问题。

The purpose of this paper is to investigate spatial agglomeration evolvement and disparity of the intensity of urban land use, which provides the beneficial enlightenment to optimize the intensity of urban land use strategy under the new urbanization background; Research method include theoretical analysis, principal component analysis, ESDA analysis, the statistic index analysis; Research findings shows that 1 ） there exists significant spatial correlation and the effective range of 0--600 km center periphery effect. The center-peripheral structure is formed by the east coast region as the center, the central and western regions of China as the edge; 2） difference of the intensity level of urban land use is obvious but showinga trend of convergence; regional differences are the main cause of the general differences; 3 ） the intensity level of urban land use hastypical scale effect; there exists dualistic structure in intensive land use of different scale city. The paper concludes that it is should fully considered that the spatial interaction and the spillover effect of land use, land policy formulation suiting to local conditions, and at the same time＂polarization＂ problem of regional land intensive use.