中国主要城市化地区测度——基于人口聚集视角

Estimating Major Urbanized Areas in China:A Population Concentration Approach

基于人口聚集的新视角,以一定人口密度下连片聚集的人口规模为标准,测度分析我国主要城市化地区的状况,结果表明:主要城市化地区具有高度聚集的特征;城市行政地域范围与基于聚集视角的主要城市化地区的空间分布存在较大差异;10年来人口大规模向主要城市化地区聚集,但其面积扩大快于人口增长;主体功能区规划中设计的主要城市化地区范围过大、现状聚集性较差,不利于我国集约紧凑型城镇化发展模式的实施。

On the basis of the new population concentration approach,taking as a benchmark the size of contiguous population concentrations of a certain population density,we calculate and analyze the situation of China's major urbanized areas.Our findings show that these areas are distinguished by high population concentration.Great discrepancies exist between the geographical scope of urban administration and the spatial distribution of major urbanized areas based on the concentration approach.Over the last decade,there has been large-scale population concentration in major urbanized areas,but growth in the dimensions of these areas is occurring faster than population growth.In planning for major functional regions,the design of major urbanized areas suffers from excessively large scope and rather low current concentration,hindering the realization of an intensive and compact development mode of Chinese urbanization.