流动空间视角下的同城化地区发展阶段划分与特征

同城化具有促进要素区域流动,缩小地区发展差距的作用,同城化地区是区域协调发展的典型区域。本文利用流动空间的多要素流测度分析,探索定量化研判同城化地区发展进程的方法。综合同城化地区人流、信息流、经济流等要素流测度来评价同城化地区城市间联系紧密程度,在定量测度和空间可视化表达的基础上分析同城化地区发展的空间格局、划分同城化地区发展阶段,进而聚类分析中国同城化地区城市发展的阶段性特征。研究主要的结论包括：第一,中国同城化地区城市间的流动空间联系强度在空间格局上呈现南部与中部地区发展较为强势,地区间发展进程差异较大,但未呈现明显的东西、南北的空间分异;第二,基于流动空间视角,中国同城化地区的发展可以分为四个阶段,质量与数量上呈现“金字塔”型的分布;第三,同城化地区城市间的流动空间联系强度与地区总常住人口及地区生产总值呈现非相关性;第四,不同流动空间联系强度的同城化地区在基础设施、行政合作、公共服务、产业协作、市场发展等方面表现出阶段性特征差异。

Development stage segmentation and characteristics of urban integration area in China based on the space of flows

Urban integration is of great significance in promoting the flow of regional factors and narrowing the regional development gap. Such areas are a typical example of a coordinated region. This paper uses a multi-factor measurement of the space of flows to explore how to analyze a quantitative aspect in the stage of urban integration in China. In this paper, we synthesize multiple related factors including the flows of people, information and economy, etc. and evaluate the degree of closeness in connection between cities of urban integration and based on the quantitative measurement and spatial visualization. We explore the spatial pattern of the urban integration and divide the development stages, and further analyze the individual stage characteristics on a category basis. The main conclusions can be drawn as follows: firstly, the spatial pattern of the space of flows' connection strength between the cities in the urban integration area in China shows that the southern and central regions are developing at a rapid pace, the development process between regions is quite different, while there is no obvious spatial difference between East, West, North and South. Secondly, viewing from the point of the space of flows, the development of urban integration areas in China can be divided into four stages, which shows a pyramid-like distribution pattern in terms of quantity and quality. Thirdly, there is no correlation between the space of flows' connection strength and the total resident population and GDP of a certain area. Fourthly, there are periodical characteristic differences in infrastructure, administrative cooperation, public services, industrial cooperation, market development and other aspects in urban areas with different connection strengths of the space of flows. In order to promote urban integration in China, we propose to romote the flow of regional factors and strengthen the co-construction of infrastructure in urban integration areas. Meanwhile, we should respect the objective rules of development of urban integration areas, and clarify the tasks and emphasis in each development stage.