多维要素流视角下环长株潭城市群空间网络结构特征
Spatial Network Structure of the Urban Agglomeration Around Changsha-Zhuzhou-Xiangtan from Multidimensional Factor Flow Perspective
朱晶晶 1谭雪兰 2余航菱 1周舟 1王卫林1
作者信息
- 1. 湖南农业大学资源学院,中国 长沙 410128
- 2. 湖南师范大学地理科学学院,中国 长沙 410081
- 折叠
摘要
城市群空间网络结构特征分析有助于解析城市发展驱动力,减弱城市极化现象,本研究运用修正的引力模型、多维网络度量模型和隶属度模型测定环长株潭城市群内外部空间网络联系强度,分析其网络特征与作用方向,利用社会网络分析法研究城市群空间格局与板块效应.结果表明:(1)内外部总体多维要素网络表现相对一致,联系强度以长沙为中心逐渐向外圈降低.(2)在省内要素网络中,长沙市"一城独大"态势明显;在省际网络中,岳阳市在多维要素网络中表现突出,与武汉都市圈联系密切.(3)环长株潭城市群点度中心度内外部网络差异大,整体网络中介水平低,不利于吸引外部要素交流.其内部综合联系空间网络分为 4 个凝聚子群,外部综合网络仅分为 2个凝聚子群.表明环长株潭城市群仍是以内部联系为主,对外连通性较弱.
Abstract
Characterization of the spatial network structure of city clusters can help to analyze the driving force of urban development and weaken the phenomenon of urban polarization.This paper applies the modified gravity model,multi-dimensional network metric model,and affiliation model to determine the strength of the internal and external spatial network connections of the urban agglomeration around Changsha-Zhuzhou-Xiangtan,analyze its network characteristics and direction of action,and study the spatial pattern of the city cluster and the plate effect using the social net-work analysis method.The results show as follows.(1)The overall multi-dimensional factor networks inside and outside the city cluster are relatively consistent,and the linkage strength gradually decreases from Changsha to the outer circle.(2)Changsha city presents"one city domination"in the intra-provincial net-work,and Yueyang city is the most prominent city in the inter-provincial network,which is closely connected with the Wuhan metropolitan area.(3)There is a big difference between the internal and external networks of the urban agglomeration around Changsha-Zhuzhou-Xiangtan in terms of the degree of centrality of points,and the overall level of network intermediation is low,which is not conducive to attracting external factor exchanges.The internal comprehensive linkage space network of the urban agglomeration around Changsha-Zhuzhou-Xiangtan is divided into 4 cohesive subgroups,while the external comprehensive network is only divided into 2 cohesive subgroups.The ur-ban agglomeration around Changsha-Zhuzhou-Xiangtan is still dominated by internal linkages,with weak external connectivity.
关键词
城市联系/要素流/空间网络结构/环长株潭城市群Key words
urban connection/factor movement/network structure/the urban agglomeration around Chang-sha-Zhuzhou-Xiangtan引用本文复制引用
基金项目
国家自然科学基金资助项目(42201470)
湖南省教育厅优秀青年基金项目(22B0230)
出版年
2024
NETL
NSTL
维普
万方数据