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机构地区:[1]东北师范大学城市与环境科学学院,吉林长春130024 [2]长沙市规划信息服务中心,湖南长沙410013
出 处:《地理科学》2010年第5期660-666,共7页Scientia Geographica Sinica
基 金:国家自然科学基金项目(40571061)资助
摘 要:以城市综合实力代替城市人口或城市经济总量,结合主成分分析法,对传统的引力模型进行改进,得出了基于引力模型的长株潭城市群空间范围界定,并对引力模型本身的局限性进行了分析。针对城市群系统的本质特征是内部存在密切的生产要素流,进一步得出了基于要素流分析法的长株潭城市群空间范围界定。最后,综合这两种界定方法,得出了理论上的长株潭城市群空间范围,并与政府划定的长株潭城市群空间范围进行对比,发现政府划定的城市群空间范围要大于理论计算的城市群空间范围。考虑到城市群的地域邻近性特征,以及政府对城市群发展的推动作用,对长株潭城市群中远期的空间范围进行了预测。Dividing the boundary of urban agglomerations is not only a theory problem,but also a practice problem in the course of planning and construction of urban agglomerations.In this paper,firstly,the improved gravity model by combining the method of main composition analysis and the comprehensive strength of cities is used to primarily divide the boundary of Chang-zhu-tan urban agglomeration.The end and the limitations of using gravity model to divide the boundary of urban agglomerations are analyzed and discussed,too.some errors between the theory end and the real status are easily caused because of the limitations of gravity model itself,for example,the location of gravity breaking point is easily disturbed by the city administrative area shapes,etc.So,some else methods must be used to rectify the boundary of Chang-zhu-tan urban agglomerations.Taken into account production elements flow are the most base feature of urban agglomerations system,the analyses of production elements flow between the different cities are used as the method to further divide the boundary of Changzhu-tan urban agglomeration,including the information flows and the passengers flows about the different cities in Hunan Province are fully analyzed.Finally,the current boundary of Chang-zhu-tan urban agglomeration is divided by synthesizing the two methods,and the neighborhood feature of urban agglomerations and the acting force of governments to urban agglomerations also are thought over to predict the future boundary of Chang-zhu-tan urban agglomeration.
分 类 号:TU984[建筑科学—城市规划与设计]
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