城镇化类型与城市发展战略——来自城市蔓延指数的证据

Types of Urbanization and Urban Development Strategies——Based on the Urban Sprawl Index

我国城镇化进程取得较大成就的同时城市病现象也开始凸显,对此我国政府采取了限制大城市发展和鼓励小城市发展的城市发展战略。从城市蔓延视角对1990—2010年全国、东中西三大区域及30个省区市的蔓延指数分别进行测算后发现空间驱动是目前我国城市扩张的主要类型,过去城镇化进程的确存在偏差。进一步利用齐普夫法则对我国整体城市规模分布体系进行了检验,显示我国目前整体城市规模体系仍然偏小。根据相关研究提出了建议,即未来城市发展战略应利用城市蔓延规律,避免过多的政府干预,构筑城市间良好的交流渠道。

China has made great achievements in the process of urbanization but begun to witness the emergence of urban diseases. Faced with the current situation, the Chinese government has taken urban development strategies including limiting the development of big cities and encouraging the development of small ones.From the perspective of urban sprawl,the sprawl indexes of the east, middle and west regions in China and 30 provinces from 1 990 to 2010 were calculated.The results showed that the space-driven model is the main type of urban expansion,which proved that there existed urbanization strategy bias in the past.Moreover,the Zipf law was used to examine the overall size distribution system of Chinese cities,which indicated that the current system is comparatively small.Based on the related studies,it was concluded that urban sprawl laws should be adopted,too much government intervention should be avoided and effective inter-city communication channels should be built in taking urban development strategies.