基于多维要素流视角的城市群网络结构及影响因素分析——以武汉城市圈为例

Analysis on the Network Structure of Urban Agglomeration and Its Influencing Factors Based on the Perspective of Multi-dimensional Feature Flow:Taking Wuhan Urban Agglomeration as an Example

基于多维要素流视角,以武汉城市圈9个城市为研究区域,从节点、层级、子网络三个方面对经济、人口、交通、信息等网络的空间结构进行刻画,并进行多维网络对比分析,用企业水平差异、文化节点性差异、平均时间距离差异、人均GDP差异、行业结构差异等五个影响因子构建多重网络关系回归模型,剖析多重网络影响因素。研究结果表明:(1)武汉城市圈可划分为三级联系片区,武汉、鄂州分别为主副中心,黄石、孝感、黄冈三市为集聚—辐射中心片区,其余城市为次级核心城市。(2)多维网络之间的相似性排序为经济网络—信息网络>经济网络—人口网络>人口网络—信息网络>经济网络—交通网络>人口网络—交通网络>交通网络—信息网络,经济网络与其余各类网络之间的相似性最高。(3)交通效率及企业发展水平是使多维网络产生相似性的主要因素,而经济发展水平、文化关系、产业分工影响因素是多维网络产生差异性的主要因素,其中文化关系影响最薄弱,交通效率因素影响最强。

Based on the perspective of multi-dimensional element flow,taking nine cities in Wuhan Urban Agglomeration as the research area,this paper describes the spatial structure of the four networks—the economy network,the population network,the transportation network,and the information network—from the three aspects of node,level,and sub-network,and compares multiple networks.The analysis uses five factors,namely,the differences in enterprise level,education level,transportation level,per capita GDP and industry structure,to construct a multiple network relationship regression model,and analyzes the influencing factors of multiple networks.The research results show that:1)Wuhan Urban Agglomeration is divided into three-level areas which are the main and sub-center areas(Wuhan and Ezhou),the clusterradiation areas(Huangshi,Xiaogan and Huanggang)and the sub-core cities(the rest of cities).2)The similarities between multi-dimensional networks are sorted in descending order:the similarity between the economic network and the information network,the similarity between the economic network and the population network,the similarity between the population network and the information network,the similarity between the economic network and the transportation network,the similarity between the population network and the transportation network,the similarity between the transportation network and the information network.The similarity between the economic network and the other networks is the highest.3)Transportation efficiency and enterprise level are the main factors that cause the similarities between the four networks,and the influencing factors of economic growth,cultural relations,and industrial division of labor are the main factors that cause the differences between the four networks.Among them,transportation efficiency has the strongest effect,while cultural relation has the weakest effect.