基于投入产出理论的城市群产业空间联系

Approach and Empirical Research on Industry Contact in Urban Agglomeration

在对城市群空间联系研究成果回顾的基础上,通过引入感应系数和影响系数,构建度量两两城市之间产业联系强度的指数,通过强度大小确定城市群内部产业联系的主要方向和次要方向,即空间结构。根据该指数大小,认为在同一城市群范围内,该指数存在较大的差异,差异程度与城市群的发育程度以及节点的空间配置关系耦合度较高,表现出较强的自组织性;根据主要联系方向和次要方向在不同节点的配置关系,确立了网络密集型、结构分散型、聚核居中型和聚核偏离型4种空间结构类型。基于空间发展战略和规划导向,分析了产业空间联系结构的应用价值,进一步明确城市群内部的空间开发时序以及不同城市群在不同时期的开发方向与重点等。最后指出了本文研究的理论意义及未来研究的主要方向。

On the basis of the research results in recent years, the paper puts forward the studying route, i.e., introducing inductance and influence indexes, proposing the used parameters to measure contact, confirming the main and subordinate contact directions based on the hierarchies of and forming the spatial structure of urban agglomerations （UAs）. According to the hierarchies of exponents, the paper indicates that Industry Contact Intensity （ICI） is different in different urban agglomerations; the degree of difference depends on the hierarchies of urban agglomerations and the spatial collocating relationship of each city. The greater the hierarchies, the greater degrees the difference has. Basing on the distribution of main and subordinate contact directions, the pa- per partitions four types of the structures, such as network-denseness, spatial-decentralization, core-centered and core-deflective patterns. In addition, this paper abstracts different exterior-configurations basing on the shapes when the width of lines representing industry contact intensity changes from 0.2 to 18. Meanwhile, it puts forward the system of space exploiture on different ranges, such as the whole country, urban agglomeration systems and individual ones, macroscopical direction and emphases in different urban agglomerations, and summarizes blueprints of spatial development in different stages for every urban agglomeration. Finally, the paper summarizes the theoretical meanings of this study and put forward the direction of research in this field.