基于百度贴吧数据的长江中游城市群城市网络联系分析
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摘要
以百度城市吧主题帖的累积截面数据为基础数据,采用优势流分析法等,定量分析流空间视角下长江中游城市群城市网络联系特征。结果表明:(1)长江中游城市群城市贴吧网络联系密度为77.74%,大部分城市间存在比较普遍的网络联系。(2)长江中游城市群31个城市可划分为全域、普遍、较多、一般、较少伙伴型城市等5种类型,环鄱阳湖城市群缺少全域和较多伙伴型城市,城市网络联系不如武汉城市圈和环长株潭城市群活跃。(3)长江中游城市群尺度上尚未形成绝对意义上的主导型和次级主导型城市,仅有武汉与长沙表现出了主导型城市的雏形,整体城市网络联系层级结构不是十分明晰。(4)按照主导性、控制力的强弱,长江中游城市群已基本呈现"一主两副三中心五节点"金字塔型的城市网络联系格局,武汉为大区中心城市,长沙和南昌为大区副中心城市,株洲、九江、宜昌可认为是各子城市群的中心城市,岳阳、黄石、襄阳、衡阳和景德镇应定性为各子城市群的控制节点城市。
Based on the Baidu City Post Bar data, this paper used the social network analysis method, dominant flow analysis method, D-Value and C-Value analysis method, to make a quantitative analysis on the city network link characteristics of urban agglomeration in the middle Yangtze River basin from the following three aspects: city network link density and city link type, city network link hierarchy structure, and city's dominance and control power. The results show that:(1) The network link density of City Post Bar of urban agglomeration in the middle Yangtze River basin is 77.74%, and that of each city sub-group is 100%. There is a general network connection among most cities, in which the city network connection is more consanguineous in city sub-groups.(2) A total of 31 cities in urban agglomeration in the study area can be divided into five types: all partner, universal partner, more partner, ordinary partner,and few partner cities. There are no all partner type cities or more partner type cities in the circum-Poyang Lake urban agglomeration, whose city network link is not as active as that of the Wuhan urban agglomeration and the circum-Chang(Changsha)-Zhu(Zhuzhou)-Tan(Xiangtan) urban agglomeration.(3) Urban agglomeration in the middle Yangtze River basin has not yet nurtured a truly dominant city or a secondary dominant city. Dominant cities and secondary dominant cities only appear in the three city sub-groups, with an insignificant city network link hierarchy structure. Wuhan and Changsha can affect the other cities across the city sub-groups' boundary, being miniature dominant cities at the level of urban agglomeration in the study area.(4) Urban agglomeration in this region has basically formed a pyramid pattern of city network link featured by"one core, two sub-cores, three centers, and five nodes". In terms of the dominance and control power, Wuhan can be considered as the regional central city;Changsha and Nanchang are the regional sub-core cities; Zhuzhou, Jiujiang and Yichang are the central cities in their respective city sub-group; Yueyang, Huangshi, Xiangyang, Hengyang and Jingdezhen are the control node cities in their respective city sub-group.
Based on the Baidu City Post Bar data, this paper used the social network analysis method, dominant flow analysis method, D-Value and C-Value analysis method, to make a quantitative analysis on the city network link characteristics of urban agglomeration in the middle Yangtze River basin from the following three aspects: city network link density and city link type, city network link hierarchy structure, and city's dominance and control power. The results show that:(1) The network link density of City Post Bar of urban agglomeration in the middle Yangtze River basin is 77.74%, and that of each city sub-group is 100%. There is a general network connection among most cities, in which the city network connection is more consanguineous in city sub-groups.(2) A total of 31 cities in urban agglomeration in the study area can be divided into five types: all partner, universal partner, more partner, ordinary partner,and few partner cities. There are no all partner type cities or more partner type cities in the circum-Poyang Lake urban agglomeration, whose city network link is not as active as that of the Wuhan urban agglomeration and the circum-Chang(Changsha)-Zhu(Zhuzhou)-Tan(Xiangtan) urban agglomeration.(3) Urban agglomeration in the middle Yangtze River basin has not yet nurtured a truly dominant city or a secondary dominant city. Dominant cities and secondary dominant cities only appear in the three city sub-groups, with an insignificant city network link hierarchy structure. Wuhan and Changsha can affect the other cities across the city sub-groups' boundary, being miniature dominant cities at the level of urban agglomeration in the study area.(4) Urban agglomeration in this region has basically formed a pyramid pattern of city network link featured by"one core, two sub-cores, three centers, and five nodes". In terms of the dominance and control power, Wuhan can be considered as the regional central city;Changsha and Nanchang are the regional sub-core cities; Zhuzhou, Jiujiang and Yichang are the central cities in their respective city sub-group; Yueyang, Huangshi, Xiangyang, Hengyang and Jingdezhen are the control node cities in their respective city sub-group.
引文
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