中原城市群城镇网络结构特征分析:基于空间引力与客运联系

THE NETWORK STRUCTURE ANALYSIS OF ZHONGYUAN URBAN AGGLOMERATION BASED ON INTERACTIVE AND TRAFFIC FLOW RELATIONSHIP

以中原城市群县、市区节点为研究单元,基于引力模型与复杂网络模型,根据测定的城镇间引力量与城际直接的客运班次两类数据,对中原城市群空间网络结构特征进行比较与归纳。结果表明:中原城市群空间联系突出了"双中心"与层次结构特征,引力与客运联系网络互为支撑,又各具特色,郑州与洛阳在城市群网络结构中的中心度较高,但对网络并没有绝对的控制力,城市群网络的集团化效应明显。城市群最大联系轴向有序,但空间网络结构并没有呈现较强的"长尾分布",城镇网络结构中心度分布有序性差。城市群引力网络子群体间的联系较弱,内部的联系密切,受行政区划的屏蔽或行政级别差异影响显著;而客运联系网络各子群体之间的联系较强,核心市区功能效应显著。

The urban agglomeration is tending to realize networking development, spatial relationship network is one of important contents for spatial structure, so it is necessary to study the relationship network to provide basic theory to the development of urban agglomeration. The paper makes the nodes of counties or cities as the object of research,and takes advantage of the amount of interactive and traffic flow to reveal the feature of spatial network in Zhongyuan Urban Agglomeration based on the Interactive and Complex Network model. The findings show that： not only the spatial relationship has clear characteristics of double centers and hierarchical structure for Zhongyuan Urban Agglomeration, but the distribution of regional relationship on maximum direction is orderly. Interactive network and traffic flow network could support each other,but they also have difference and dominate development of urban agglomeration network with each other;Zhengzhou and Luoyang own higher centrality degree than other nodes, but they could not control the network totally, two kinds of networks tend to form diverse sub-groups. The strongest relationship of node-node has the ordered combination, but both of the networks obey to the long- tailed distributions is not obvious,the degrees of networks could not keep orderly. The sub-groups of interactive network have a strong intra-relationship, they are affected by the administrative area or shield affects visibly.