基于交通信息流的长江经济带城市中心性及其影响因素  

Urban Centrality and Its Influencing Factors in the Yangtze River Economic Belt Based on Traffic and Information Flow

作　　者：雷菁[1] 钟业喜[1] 冯兴华[1] 吴思雨 钟玉婷 LEI Jing;ZHONG Yexi;FENG Xinghua;WU Siyu;ZHONG Yuting(Regional Development and Planning Research Center&School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,Jiangxi,China)

机构地区：[1]江西师范大学地理与环境学院&区域发展与规划研究中心,江西南昌330022

出　　处：《经济地理》2021年第8期97-105,共9页Economic Geography

基　　金：国家自然科学基金项目(41561025、41961043)。

摘　　要：识别流空间视角下的城市地位有助于推动区域融合与高质量发展。基于列车班次及百度指数数据在Ucinet及ArcGIS软件支持下,刻画了交通信息流视角下的长江经济带网络密度及城市中心性特征并进一步探讨了其影响因素的差异性。结果显示:(1)长江经济带城市交通及信息联系均处于弱连接状态,交通及信息要素的联系水平均有待进一步提升;交通网络的省域融合特征开始显现,而信息网络的跨地带联系相对较弱。(2)交通网络中的城市中心性的等级差异显著,西部地带中心城市的遮蔽效应较强;信息网络视角下的城市交往力的空间分布相对均衡,但中部城市的要素连接作用不强。(3)信息网络初步形成了相对协调有序的组团格局,而交通网络下的组团联系相对匮乏、城市组团的紊态化发展态势明显。(4)大部分因子对信息流要素下的城市中心性的影响力均强于交通流网络,交通及信息基础设施建设成为影响交通信息流视角下的城市中心性的主导因子,而单纯的人口规模对城市中心性影响相对较弱。为此,文章提出应积极培育省域边缘地区中心城市、推动中西部地带基础设施建设、构建统一的要素市场与共享平台,以促进长江经济带交通信息要素网络的一体化、协调化发展。"Flow" space is one of the hot issues in the study of regional spatial structure,recognizing the city’s status from the perspective of flow space helps to promote regional integration and high-quality development. Based on the data of traffic train frequency and Baidu index,this paper analyzes the network density and urban centrality characteristics from the perspective of traffic and information flow applying Ucinet and ArcGIS software,and discusses the influencing factors of urban centrality under the traffic and information network. The results show that: 1) Urban traffic and information connections in the Yangtze River Economic Belt are in a state of weak connection, and the connection level of urban traffic and information needs to be further improved. The provincial integration characteristics of the transportation network are beginning to appear,and the cross-zone connection of the information network is relatively weak. 2) The level of urban centrality in the transportation network is significantly different. The central cities in the western region have strong connection and shielding effects;the spatial distribution of urban communication in the information network is relatively balanced,but the information connection effect of central cities is generally weak. 3) The information network has initially formed a relatively coordinated and orderly group structure, while the group connections under the transportation network are relatively scarce, and the cities in the subgroups have formed a turbulent development trend. 4)Most of the factors have stronger influence on the urban centrality under the information flow element than the traffic flow network. The construction of traffic and information infrastructure has become the dominant factor influencing the urban centrality from the perspective of traffic and information flow,while the scale of pure population plays a relatively weak role in the urban centrality. Therefore,it is necessary to actively cultivate central cities in the fringe regions of the

关 键 词：流空间 城市中心性 交通信息流 地理探测器 长江经济带 一体化发展 基础设施建设 

分 类 号：F299.23[经济管理—国民经济]