地理研究 ›› 2015, Vol. 34 ›› Issue (11): 2073-2083.doi: 10.11821/dlyj2015110006

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多元交通流视角下的中国城市网络层级特征

陈伟1,2,3,4(), 修春亮4(), 柯文前5, 俞肇元5, 魏冶4   

  1. 1. 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
    2. 中国科学院地理科学与资源研究所,北京 100101
    3. 中国科学院大学,北京 100101
    4. 东北师范大学地理科学学院,长春 130024
    5. 南京师范大学地理科学学院,南京 210023
  • 收稿日期:2015-04-26 修回日期:2015-09-14 出版日期:2015-11-15 发布日期:2015-11-15
  • 作者简介:

    作者简介:陈伟(1989- ),男,安徽淮南人,博士研究生,研究方向为经济地理与区域发展。E-mail:geochw@163.com

  • 基金资助:
    国家自然科学基金项目(41401172)

Hierarchical structures of China's city network from the perspective of multiple traffic flows

Wei CHEN1,2,3,4(), Chunliang XIU4(), Wenqian KE5, Zhaoyuan YU5, Ye WEI4   

  1. 1. Key Laboratory of Regional Sustainable Development Modeling, CAS, Beijing 100101, China
    2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    3. University of Chinese Academy of Sciences, Beijing 100049, China
    4. School of Geographical Sciences, Northeast Normal University, Changchun 130024, China
    5. School of Geographical Sciences, Nanjing Normal University, Nanjing 210023, China
  • Received:2015-04-26 Revised:2015-09-14 Online:2015-11-15 Published:2015-11-15

摘要:

交通流是人流、物流等要素流动的主要载体和表现形式,对于认识城市间相互作用等具有重要意义。基于城市间公路、铁路和航空客流数据,对中国城市网络空间关联进行特征提取和规律挖掘。研究表明:① 公路流表现出强烈的空间依赖性和对城市群发育程度的良好识别作用;② 铁路流呈现出“两横三纵”带状分布格局;③ 航空流视角则基本形成了以“菱形结构”为核心的城市网络框架。不同类型交通流刻画出不同层面的城市间关联格局,但却有着其内在联系。航空流是城市关联格局骨架构筑的主要形式,铁路流则为核心骨架的连通提供支撑轴带,而公路流是对整体骨架和支撑轴带的有效填充,从而形成区域间相互依赖、不可或缺的要素关联和空间关系。

关键词: 交通流, 城市网络, 城市体系, 层级结构, 区域关联

Abstract:

Traffic flow acts as a major carrier of other flows (including people, goods, capital, etc.), thus the study on traffic flow is of great significance to understand intercity interaction. Based on the 321 cities at prefecture level or above, this article explores spatial linkage of China's city network using intercity linkage data of road, rail and air transport. The research results show that: (1) The spatial correlation of city network based on road linkage displays strong spatial dependence, which is very useful to identify urban agglomerations and assess developments. Besides the most developed regions including Yangtze River Delta, Pearl River Delta and Beijing-Tianjin-Hebei urban agglomerations, some important urban agglomerations have emerged, such as Zhongyuan, Harbin-Daqing-Qiqihar, Central Jilin, Central-southern Liaoning, Shandong Peninsula, Guanzhong, West coast of Taiwan Straits, Wuhan, Central Yunnan, Changsha-Zhuzhou-Xiangtan. (2) The railway linkage flow reflects intercity external connection pattern, regional element relevancy and regional accessibility along with national railway artery. "Two horizontal and three longitudinal" zonal distribution patterns composed of Beijing-Guangzhou, Beijing-Harbin, Beijing-Shanghai Railway and Longhai-Lanxin, Shanghai-Kunming Railway, constitute the urban network backbone and have become the most important economic axial belts for national territorial development. (3) The "diamond structure" as the core framework basically forms the skeleton of urban network system from the perspective of air passenger flow, whose vertices are Beijing, Shanghai, Guangzhou-Shenzhen and Chengdu-Chongqing. Generally speaking, different types of traffic flows reflect different patterns of intercity linkage, namely, there also exists internal relationship. Air passenger flow constitutes the backbone of intercity linkage pattern, railway linkage flow acts as supporting axis belts for the core framework, and road linkage is a bridge connecting main skeleton and supporting belts. All types of traffic flows collectively form interdependent and indispensable element correlation and spatial relationship among regions.

Key words: traffic flow, city network, urban system, hierarchical structure, regional linkage