城市外围地区的收缩识别分析

Research on the Identification of Urban Periphery Contraction

正确认识城市发展规律、明确城市发展所处的阶段是进行城市规划的重要前提。文章采用数据分析法和对比分析法对10个特大城市2010与2020年的人口及经济变化进行计算,对城市外围地区的收缩情况进行识别,得出以下结果:城市的资源正向中心城区聚集,外围地区大多正面临收缩或潜在收缩,即整体城市发展表现出“中心聚集—外围收缩”的模式,以期为存量更新背景下的规划与设计提供参考,应该积极应对城市收缩的现状,增强“精明收缩”等策略在收缩城市中的应用与实施。

It is an important prerequisite for urban planning to correctly understand the law of urban development and to clearly define the stage of urban development.The paper calculates the population and economic changes of 10 megacities in 2010 and 2020 with data analysis method and comparison analysis method,and identifies the contraction of the peripheral areas of the city.The following results are obtained:urban resources are gathering in the central urban area,and most of the peripheral areas are facing contraction or potential contraction,that is,the overall urban development shows the pattern of“central agglomeration-peripheral contraction”.This paper aims to provide a reference for planning and design in the context of stock renewal.We should actively respond to the current situation of urban contraction,and strengthen the application and implementation of“smart contraction”and other strategies in shrinking cities.