兰西城市群空间结构演变及优化研究  

Research on Spatial Structure Evolution and Structural Optimization of Lanxi Urban Agglomeration

作　　者：程钦良 张亚凡 宋彦玲 CHENG Qinliang;ZHANG Yafan;SONG Yanling(School of Economics and Finance,Huaqiao University,Quanzhou 362021,China;School of Statistics,Lanzhou University of Finance and Economics,Lanzhou 730020,China)

机构地区：[1]华侨大学经济与金融学院,福建泉州362021 [2]兰州财经大学统计学院,兰州730020

出　　处：《地域研究与开发》2020年第2期52-57,共6页Areal Research and Development

基　　金：甘肃省自然科学基金项目(17JR5RA178);华侨大学创新基金项目(18011020002)。

摘　　要：对兰西城市群规模结构和网络结构特征及变动规律进行了研究。结果显示:规模结构的Kernel密度在整体上存在着“东高西低”的特点,东西带状分布明显,区域内部差异较大;城市群“核心-边缘”的结构模式明显,“点-轴-面”的演化进程缓慢,由于辐射能力有限,“双圈”间的经济带联系存在一定程度的“断裂”。网络结构上,2001—2017年城市间的联系有一定的提升,西宁-海东都市圈节点城市的经济联系弱于兰州-白银都市圈的节点城市;城市群经济发展仍表现为向兰州和西宁集聚变动;城市间的联系多要通过兰州和西宁发挥作用,网络结构单一,且城市间的联系有依赖于行政区划分演变的趋势。The paper studied the scale structure and network structure characteristics and changes of the Lanxi Urban Agglomeration.The results shows:The Kernel density of the scale structure has the characteristics of“east high and low west”as a whole,and the band-like distribution of east and west is obvious,and the internal differences are large.The structural pattern of“core-edge”of urban agglomerations is obvious,and the evolution process of“point-axis-face”is slow.Due to the limited radiation capacity,there is a certain degree of“rupture”in the economic relationship between“double circles”.In terms of network structure,the connection between cities has been improved from 2001 to 2017.The economic relationship between Qinghai-Haidong metropolitan area is weaker than that of Lanzhou-Baiyin metropolitan area.The economic development in the urban agglomeration is still manifested as a gathering change in Lanzhou and Xining.The connections between cities must be played through Lanzhou and Xining,the network structure is single,and the links between cities depend on the evolution of administrative divisions.Based on this,the article makes an exploration and analysis of the spatial structure optimization of the Lanxi Urban Agglomeration.

关 键 词：空间结构 核密度分析法 社会网络分析法 引力模型 兰西城市群 

分 类 号：F291[经济管理—国民经济]