城市群空间集聚和扩散的特征与机制--以长三角城市群、武汉城市群和成渝城市群为例  

CHARACTERISTICS AND MECHANISM OF SPATIAL CONCENTRATION AND DISPERSION OF THE REPRESENTATIVE URBAN AGGLOMERATIONS IN CHINA: A CASE STUDY OF YANGTZE RIVER DELTA URBAN AGGLOMERATIONS, WUHAN URBAN AGGLOMERATIONS, AND CHENGDU-CHONGQING URBAN AGGLOMERATIONS

作　　者：李凯 刘涛[2] 曹广忠[3] 

机构地区：[1]北京清华同衡规划设计研究院总体规划研究中心 [2]中国人民大学 [3]北京大学城市与环境学院

出　　处：《城市规划》2016年第2期18-26,60,共10页City Planning Review

基　　金：国家自然科学基金项目(41371166)阶段性成果

摘　　要：城市群在国家和地区发展中具有重要的经济社会地位,也是区域空间格局演变的重要形式。本文以分别位于我国东、中、西部的长三角城市群、武汉城市群地区和成渝城市群为分析对象,从中心-外围的圈层关系视角,运用数量统计分析和空间分析方法考察城市群空间集聚与扩散的阶段特征和一般规律。研究发现:城市群地区的要素集聚呈现出明显的中心指向和交通指向,外向扩散表现出沿"核心都市区中心市-核心都市区外围县-城市群次圈层-城市群外围地区"的空间梯度扩散规律,且人口扩散滞后于经济扩散。进一步考察了初始规模、投资强度、经济发展、通达性以及市场分割对沿海和内陆城市密集地区空间聚散的不同影响作用,以期揭示和解释这类地区的空间格局演变规律,并为城市群的跨区域协调发展和空间规划提供认识依据。Urban agglomerations have become the latest spatial pattern in the evolution of the spatial structure. Facing the realistic characteristics and trends of urban agglomerations＇ rapidly spatial expanding and diversing forms of spatial organization, this paper explores the diffusion characteristics and general laws of the representative urban agglomerations in China, based on statistical analysis and spatial analysis. The results show that element concentration of China＇s urban agglomerations shows significant phenomenon of the center point and traffic point. At the same time, it is showed that element decentralization have the space gradient diffusion characteristics of ＂central city peripheral county urban agglomeration urban agglomeration outlying areas＂.Population dispersionlags behind economic dispersion. Finally, we investigate the influence Of initial scale, investment intensity, economic development and market segmentation on the concentration and dispersion of urban agglomerations. This paper would provide the reality basis for inter-regional coordinated development of urban agglomerations during deepening reform period.

关 键 词：城市群 集聚 扩散 驱动机制 

分 类 号：F299.27[经济管理—国民经济]