吉林省中部地区县域城镇化水平时空差异分析

Spatial-temporal Difference Analysis of County Urbanization Level in Central Jilin Province

基于吉林省中部地区2005—2014年城镇化相关数据,从经济、人口、土地三个维度构建以县域为研究单元的城镇化水平综合评价指标体系,采用熵值法计算各县市城镇化综合水平。在此基础上,采用ESDA与变异系数等方法分析研究区近十年城镇化水平空间差异的演化过程,探究空间差异的形成原因,旨在为吉林中部城市群发展提供参考。结果表明:1吉中地区城镇化水平总体空间差异整体呈缩小趋势,研究末期略有扩大;2研究区中心区域与外围区域相比,城镇化水平高且空间差异较大;3城镇化发展整体关联性差,偏南和偏北区域的关联性高于中间区域;4非农人口规模、国内生产总值、土地城镇化指标是城镇化水平空间差异的主要原因;5城镇化低水平县市比例过大,中高水平县市比例过小,不利于吉林中部城市群的构建。

Based on the urbanization data of central Jilin Province from 2005 to 2014, this paper established the urbanization level comprehensive evaluation index system from the aspects of economic, demographic and land at county scale, and calculated the comprehensive urbanization level of each county with entropy method, then analyzed the spatial difference and the evolution process of the recent ten years mainly with ESDA and CV method, and also explored the reasons of the space difference, in order to provide a reference for the development of the central Jilin urban agglomera- tion. The results showed that ： （1） The overall spatial difference of urbanization level mainly kept shrinking in central Jilin Province, and expanded slightly during the end of the study period. （2）The urbanization level of counties in center region was higher than the ones in peripheral region, and the spatial difference of urbanization level in center region was bigger than the one in peripheral region. （3）The relevance of urbanization development of counties in central Jilin Province was poor, the relevance of urbanization development of the counties in north and south parts was stronger than the one in the middle part. （4）Non - agricultural population size, GDP and the indexes of land urbanization were the main reasons of urbanization level spatial difference. The proportion of low urbanization level counties in central Jilin Province was too large, and the proportion of relatively high urbanization level counties was too small, which were not conducive to the development of the central Jilin urban agglomeration.