长江流域资源与环境 >> 2020, Vol. 29 >> Issue (6): 1280-1289.doi: 10.11870/cjlyzyyhj202006003

• 区域可持续发展 • 上一篇    下一篇

多重空间流视角下长三角城市网络特征分析

戴  靓1,曹  湛2,张维阳3,吕立刚1*   

  1. (1. 南京财经大学公共管理学院,江苏 南京 210023;2. 同济大学建筑与城市规划学院,上海 200092;3. 华东师范大学城市与区域科学学院,上海 200241)
  • 出版日期:2020-06-20 发布日期:2020-07-20

Comparative Analysis of Urban Networks in the Yangtze River Delta Based on Multiplex Intercity Flows

DAI Liang 1, CAO Zhan 2, ZHANG Wei-yang 3, LV Li-gang 1   

  1. (1.School of Public Administration, Nanjing University of Finance & Economics, Nanjing 210023, China; 2.College of Architecture and Urban Planning, Tongji University, Shanghai 200092, China; 3.School of Urban and Regional Science, East China Normal University, Shanghai 200241, China)
  • Online:2020-06-20 Published:2020-07-20

摘要: 摘  要:城市间的网络关系是城市-区域空间组织结构和功能联系的本质和内涵,不同功能网络下的城市-区域空间组织模式也不尽相同。基于互联网信息、客运交通、企业总部-分支和知识创新合作四类功能网络,运用社会网络指标和节点区域分析方法,对比了长三角城市不同功能网络的空间组织结构特征,并进一步探讨其影响因素。研究发现:(1)信息网络最均质,以上海、南京、杭州、苏州为核心,呈现出“一主三副+腹地城市”区域协同发展模式。(2)交通网络和企业网络结构相似度较高,核心区的边联系最强,以南京、上海、苏州为支撑点的三角形和以宁—沪—杭—甬为核心的Z型要素流动通道较为突出,北翼的边联系强度均低于南翼,整个网络由以省会为核心的三个独立的“单中心+周边城市”区域节点组织。(3)知识网络最稀疏也最极化,除核心区外的城市及其城际联系都较为弱势,形成了“一主一副两从+腹地城市”强等级性组织模式。(4)四类网络的结构差异主要受区域自然条件、地缘优势、产业特征、科研资源和城市发展策略等因素的影响。

Abstract: Abstract:Analyzing intercity relations from the perspective of urban networks is an important way to understand the spatial structure and functional relation of regions. Urban networks are multiplex: urban networks constructed by different intercity flows might not have the same structure. In this study, four kinds of urban networks of the Yangtze River Delta were constructed, that is, the Internet network, transport network, corporate network, and knowledge network. Based on social network analysis and nodal region analysis, the structure of these four urban networks were comparatively explored through the lens of local node and dyad, global network and organization pattern, followed by preliminary explanation of their determinants. The results showed that: (1) The Internet network has a most balanced structure. Centered on Shanghai, Nanjing, Hangzhou, and Suzhou, it presents coordinated development organized by “one dominant city+three subdominant cities+hinterland”. (2) Transport network and corporate network are highly similar with a well-connected core region while two weakly-connected sides in the North and South. The flow triangle of Shanghai-Nanjing-Suzhou and the Z-shape flow corridor of Nanjing-Shanghai-Hangzhou-Ningbo are distinct in the core region. The northern side has weaker connectivity than the southern side. Both networks have three independent nodal regions organized by “single core city+surrounding cities”. (3) Knowledge network is sparsest and most polarized. The overall network is weakly connected except for the core region, displaying highly hierarchical development organized by “one dominant city+one subdominant city+two subordinate cities+peripheral cities”. (4) The discrepancies of these four networks are associated with geography, location, industry, academic resources and development strategies.

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