Dynamic Comparison of Urban Flow in Main Urban Agglomerations in China
以中国15个主要城市群为案例，分析其城市流强度和结构，探讨城市对外服务功能的空间分布和增长状况，发现长三角、珠三角、京津冀等城市群是城市流强度高值中心。
Urban flows describes the basic activities of city and reflects the urban external services.The intensity of urban flows is one of the most important quantitative indexes on urban flows.With the case study of 15 major urban agglomerations in China,this article analyses their urban flows intensity and structures,and discusses spatial distribution and growth situation of external services function in terms of urban flows.The results shows that he Yangtze River Delta,the Pearl River Delta,Beijing-Tianjing and Northern Hebei agglomerations are the centers of high urban flow intensity value,which have the most comprehensive strength in urban external services and comprehensive capacity.In addition,the urban agglomerations of high urban flows intensity almost lie in the coastal areas along the Yangtze River or ocean in China—the T shape of the economic zone.Besides,the level of external contribution in urban agglomerations is one of the intrinsic motivations on their Evolution and development.