地理科学 ›› 2019, Vol. 39 ›› Issue (3): 405-414.doi: 10.13249/j.cnki.sgs.2019.03.006

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基于高速公路流的江苏省城市网络空间结构与演化特征

柯文前1,2(), 陈伟3,4(), 陆玉麒5, 俞肇元5, 杨青5   

  1. 1. 福建师范大学地理研究所, 福建 福州 350007
    2.湿润亚热带生态地理过程教育部重点实验室, 福建 福州 350007
    3. 中国科学院地理科学与资源研究所中国科学院区域可持续发展分析与模拟重点实验室, 北京100101
    4. 中国科学院大学, 北京 100049
    5. 南京师范大学地理科学学院, 江苏 南京 210023
  • 收稿日期:2018-01-03 修回日期:2018-04-02 出版日期:2019-03-10 发布日期:2019-03-10
  • 作者简介:

    作者简介:柯文前(1988-),男,福建晋江人,副教授,研究方向为空间结构与城市网络。E-mail: wqke2005@163.com

  • 基金资助:
    国家自然科学基金项目(41601165,41430635,41571379)、福建省自然科学基金项目(2016J05093)资助

Extracting Spatial Structures and Evolutionary Characteristics of City Networks in Jiangsu Province Based on the Expressway Traffic Flow

Wenqian Ke1,2(), Wei Chen3,4(), Yuqi Lu5, Zhaoyuan Yu5, Qing Yang5   

  1. 1. Key Laboratory of Humid Subtropical Eco-geographical Process, Fuzhou 350007, Fujian, China
    2. Ministry of Education, Institute of Geography, Fujian Normal University, Fuzhou 350007, Fujian, China
    3. Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    4. University of Chinese Academy of Sciences, Beijing 100049, China
    5. College of Geography Science, Nanjing Normal University, Nanjing 210023, Jiangsu, China
  • Received:2018-01-03 Revised:2018-04-02 Online:2019-03-10 Published:2019-03-10
  • Supported by:
    National Natural Science Foundation of China (41601165, 41430635, 41571379), Natural Science Foundation of Fujian Province (2016J05093)

摘要:

高速交通网络是城市网络发育的重要指示器。以江苏省2004~2012年的高速公路流数据为支撑,辅以路网为背景,借助社区发现模型对其城市网络的空间结构与演化过程进行分析。结论如下:城市网络的演化由稀疏到稠密,但“南密北疏”的宏观格局与松散化的空间结构未发生明显改变;不同年份城市网络的空间结构可视为由多个“城市社区”组成,并凸显一体化效应、行政区效应、袭夺与被袭夺效应等区域效应;苏南、苏中和苏北的空间关联特征可分别概括为“一体化、多层次”“由均一到分化”和“破碎化、分散化”的网络结构。在此基础上,归纳了一个涵盖城镇化中早期、中期和中后期的“破碎化、分散化网络-逐步分化的多层级网络-多中心、多层级网络”三阶段的城市网络演化模型。

关键词: 空间结构, 演化特征, 城市网络, 社区发现模型, 高速公路网络

Abstract:

High-speed traffic network, as a significant power in molding the spatial-temporal characteristics of city networks, has been the key indicator. Based on the expressway network and its traffic flow data between county-level administrative units from 2004 to 2012, this article attempted to identify the functional structures and regional impacts of city networks in Jiangsu Province by introducing the community detection model, and to further explore the spatial organization patterns of the city networks during its evolutionary process. The conclusions can be drawn as follow: 1) The macro-spatial patterns of city networks has been no obvious change during the evolutionary process. The spatial characteristics can be summarized that cities with relatively good space connection and network density were distributed along the Yangtze River banks, including Southern Jiangsu and Mid-Jiangsu, while the regions with ordinary network connections and network intensity in Northern Jiangsu. The distribution characteristics reveal that Jiangsu Province is not a complete economic regional unit. 2) Several "city communities" with spatially connected and clearly defined are identified during city networks process, respectively. The spatial metaphors of the communities can be concluded in three aspects. Firstly, trans-prefectural linkages can be formed through spatial integrated effects of metropolis regions. Secondly, some communities have the same boundaries with prefecture level administrative units, which reveal that significant administrative region economy still exists in contemporary Jiangsu. Thirdly, several cities located in the marginal areas of prefectures and captured by the powerful center cities in neighboring prefectures would lead themselves to be absorbed into the communities of neighboring prefectures. 3) The spatial organizations patterns in Southern Jiangsu, Mid-Jiangsu and Northern Jiangsu have their own characteristics. In Southern Jiangsu, the spatial structures can be seen as a spatial integrated and multi-hierarchical networks all the time; In Mid-Jiangsu, its spatial structures are developing from uniform to differentiation during the evolutionary process; In Northern Jiangsu, its spatial structures show as a fragmented and undeveloped characteristics. Basis on the empirical study of Jiangsu’s experience, the evolutionary process theoretical model of regional city networks can be divided into three stages from early stage of urbanization to middle and late urbanization, i.e., the undeveloped networks, the developing multi-hierarchical networks, the polycentric and multi-hierarchical networks.

Key words: spatial structure, dynamic characteristics, city networks, community detection model, expressway network

中图分类号: 

  • K901