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本文以引力模型为基础,提出了城市“经济区位度”的概念,并以同处于黄河中下游地区但发育水平不同的山东半岛、中原、关中三城市群为研究对象,计算了三城市群所在省份诸城市的经济区位度和经济联系强度,揭示了城市群成长发育的经济联系本质。研究表明,城市经济区位度可以较好地反映一城市在区域城市体系中交通经济区位的优劣。东部沿海的山东半岛城市群处在内外经济联系密切、网络结构密集、多核心的发育成熟阶段;中部地区的中原城市群处在内部经济联系较为密切、联系网络呈现圈层构造、弱核心的快速发育阶段;西部地区的关中城市群处在中心极化的单核心的发育雏形阶段。三城市群从东向西经济联系强度依次由强变弱,经济联系的范围由大变小,经济联系网络依次由复杂变简单,展示了中国东、中、西三大经济地带城市群的总体发展态势,同时也说明城市群在演化发展过程的不同发育时期,其内外经济联系有着明显不同的特征。
Based on the gravity model, this paper puts forward the concept of city “economic zone ”, and takes the Shandong Peninsula, Central Plains and Guanzhong three urban agglomerations with different developmental levels in the middle and lower reaches of the Yellow River as the research object, The economic status and economic connection strength of Zhucheng in the province of Zhuang Autonomous Region reveal the essence of the economic connection of the growth and development of urban agglomerations. The research shows that the status of urban economic zone can better reflect the superiority and inferiority of a city’s transportation economy in the regional urban system. The eastern Shandong Peninsula urban agglomeration is closely related to the internal and external economic relations, intensive network structure and multi-core development and maturity stage. The Central Plains urban agglomeration in the central region is closely related to the internal economy, and the network has a ring-shaped structure and a weak core Development stage; Guanzhong urban agglomerations in the western region are in the center-polarized single-core stage of embryonic development. The intensity of the economic linkages from east to west in the three urban agglomerations changed from strong to weak and the scope of economic linkages changed from big to small. The economic network in turn changed from complex to simple, showing the overall urban agglomerations of the three major economic zones in China’s eastern, central and western regions Meanwhile, it also shows that the urban agglomeration has different characteristics in different stages of its development and evolution.