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| 武汉城市圈内部空间联系及其轴-辐网络结构演化 | |
| 引用本文： | 田野,罗静,孙建伟,董莹,陈国磊.武汉城市圈内部空间联系及其轴-辐网络结构演化[J].地理科学进展,2019,38(7):1093-1102. |
| 作者姓名： | 田野 罗静 孙建伟 董莹 陈国磊 |
| 作者单位： | 1. 湖北经济学院长江经济带发展战略研究院/财经高等研究院,武汉 430205 2. 华中师范大学地理过程分析与模拟湖北省重点实验室/城市与环境科学学院,武汉 430079 3. 贵州师范大学地理与环境科学学院,贵阳 550025 |
| 基金项目： | 国家自然科学基金项目(41871176,41801177);国家社会科学基金项目(18CJY048);华中师范大学中央高校基本科研业务费(CCNU18ZDPY09) |
| 摘 要： | 轴-辐伺服网络是一种高效的网络类型,有利于降低要素流动成本,提高效率,并发挥规模效应。选取武汉城市圈内37个城镇作为网络节点,利用修正后的引力模型计算其1995—2015年空间联系并进行分析,之后根据联系强度分布构建空间联系网络,并运用Python第三方开源软件包Networkx对其轴-辐网络结构及演化进行评价,得到如下结论：① 城市间联系强度逐渐增强,由单极放射状向网状一体化渐次演化,总体联系呈现以武汉主城区为中心的核心—边缘格局。空间联系网络与联系强度同步发育,结构更加致密,同时关键节点的枢纽地位愈发凸显。② 关键轴心城镇与联系通道围绕武汉主城区逐步发育,最终形成覆盖武汉主城区东、北、南三向的多重连接环,构成辐点城镇与轴心城镇进行联系的主要路径。③ 整体网络形成以武汉主城区为一级轴心,部分地级城市主城区为二级轴心,其他城镇为辐点的轴—辐网络结构,形态则呈现点对式网络—初级轴-辐网络—层级轴-辐网络的演化过程,且仍处于继续发育中。 |
| 关 键 词： | 武汉城市圈 空间联系 轴-辐网络 演化 |
| 收稿时间： | 2018-12-27 |
| 修稿时间： | 2019-03-15 |
Urban spatial linkages and the hub-spoke network structure in the Wuhan metropolitan area |
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| Ye TIAN,Jing LUO,Jianwei SUN,Ying DONG,Guolei CHEN.Urban spatial linkages and the hub-spoke network structure in the Wuhan metropolitan area[J].Progress in Geography,2019,38(7):1093-1102. | |
| Authors: | Ye TIAN Jing LUO Jianwei SUN Ying DONG Guolei CHEN |
| Institution: | 1. Changjiang Academy of Development and Strategy/Institute for Advanced Studies in Finance and Economics, Hubei University of Economics, Wuhan 430205, China 2. Key Laboratory for Geographical Process Analysis & Simulation of Hubei Province / College of Urban and Environmental Sciences, Central China Normal University, Wuhan 430079, China; 3. School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550025, China |
| Abstract: | Hub-spoke network is an efficient network structure, which is helpful for reducing the cost of factor flow, improving efficiency, and increasing scale effect. Hub-spoke network consists of some hubs and spoke, where the hubs play the key role of circulating factors like people, capital, information, and so on, and the spoke receive the factors and transfer them in a specific way so that efficiency would be improved significantly. In this study, we took 37 counties and districts in the Wuhan metropolitan area as the research area and used the modified gravity model to calculate the spatial linkage strength in 1995, 2005, and 2015 between the 37 units. Then we mapped the hub-spoke network with networkx, an open source package of python and analyzed the changes. The results show that: 1) The strength of the linkages between towns and cities have gradually increased, and the pattern evolved from unipolar radiation to network integration. Meanwhile, the overall linkages present a core-periphery pattern centered on the main urban area of Wuhan City. The spatial linkage network developed synchronously with linkage strength, and network structure has become increasingly more compact. At the same time, the pivotal position of key nodes is becoming more prominent. 2) Key hub towns and linkage channels gradually developed around the main urban area of Wuhan City, forming some connecting rings covering the northeast and south of the main urban area of Wuhan City as the key connecting channels between key hub towns and spoke towns. 3) The structure of the overall linkage network consists of a high level hub, which is the main urban area of Wuhan City, some middle level hubs, which are the main urban areas of some prefecture-level cities, and the spoke towns in the Wuhan metropolitan area. The hub and spoke network structure has evolved from point-to-point to primary hub and spoke network and leveled hub and spoke network, but this structure is not perfect at present and is still in development. |
| Keywords: | Wuhan metropolitan area spatial linkage hub and spoke network evolution |
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