长三角地区中心城市的腹地范围及其演进* ——兼论场强模型的改进

Research on Measurement of Central Cities’ Hinterlands in Yangtze River Delta: an Application of Field Intensity Model

张延吉
福州大学建筑学院 讲师,博士

郑 媛
中国人民大学公共管理学院

欧胜兰
上海市城市规划设计研究院 工程师,硕士

摘要: 场强模型是识别中心城市腹地范围的重要理论方法,但在实际运用中,普遍存在以行政级别确定中心城市、以“取大原则” 识别腹地范围的做法,致使测度结果与实际情况相背离。以1993、2003、2013年的长三角地区为研究对象,首先基于经济 综合辐射能力进行聚类分析,以识别不同时点的中心城市。在此基础上,提出以“临界原则”替代“取大原则”,通过设置 不同门槛值,划定与中心城市存在不同紧密程度的腹地范围。结论显示,上海始终是本地区腹地面积最大的一级中心城 市;随着二三级中心城市的涌现,城市腹地的重合现象在苏南浙北日益显现;而苏北浙南的大部分地区并不属于中心城市 的核心腹地。结论与实际状况较为吻合,对改进场强模型具有一定指导意义。

Abstract: Field intensity model is an important theoretical method in measuring hinterlands of central cities. However, the widely used method, to identify them by cities’ administrative levels and maximum principle, would result in distinction between measurement and reality in practice. This paper identifies the central cities in Yangtze River Delta area and measures their economic radiating capacity in 1993, 2003 and 2013 by clustering analysis. Moreover, this paper demarcates the hinterlands to different extents by setting several thresholds. The study shows that Shanghai has always been the first-class central city with the largest hinterland, and as the secondclass and thirdclass central cities emerge, more and more hinterlands in south Jiangsu Province and north Zhejiang Province are now overlapping with each other, while most part of north Jiangsu Province and south Zhejiang Province are not core hinterland of any central city. The conclusion accords with real situation and can be applied to the practice of field intensity model.

关键词:城市腹地、场强模型、长三角

Keyword: City hinterland, Field intensity model , Yangtze River Delta

中图分类号:TU981

文献标识码: A

资金资助

住房和城乡建设部软科学研究项目 “转型期大都市跨行政区空间规划干预制度创新研究” 2015-R2-067/R22015220

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