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一、郊区化郊区化是城市在一个特定时间段里的地理空间过程,是城市在经历了中心区绝对集中、相对集中和相对分散以后的一个绝对分散的阶段。它表现为人口、工业、商业先后从城市中心区向郊区迁移、中心区人口出现绝对数量的下降。郊区化是城市化过程的一个发展阶段,它始于20世纪20年代,最早出现在西方发达国家;我国城市的郊区化始于改革开放初期,现已成为我国城市发展的一个重要趋势。与西方国家相比,我国城市郊区化有其独特性。第一,从动力机制看,西方国家城市的郊区化是自发的、主动的,而我国城市的郊区化则是有组织的、被动的。我国城市郊区化的基本动力来自城市土地有偿使用制度的建立,同时,城市住房制度的改革、旧城区的改造、城市基础设施的不断完善、新城(包括卫星城市)的建设和外资的进入也起到了巨大作用。第二,从扩展方式来看,我国城市郊区化以圈层扩展为主,社会阶层的地域分异不太明显;而西方
Suburbanization Suburbanization is the geospatial process of a city in a specific period of time. It is an absolutely decentralized stage after the city has experienced the absolute concentration, relative concentration and relative decentralization of the central area. It shows that the population, industry and commerce have successively migrated from the downtown area to the suburbs, and the absolute population decline has taken place in the central area. Suburbanization is a stage of urbanization. It began in the 1920s and first appeared in the developed western countries. Suburbanization in our country began in the early stage of reform and opening up and has now become an important trend of urban development in our country. Compared with western countries, suburbanization of our country has its uniqueness. First, from the point of view of dynamical mechanism, suburbanization of cities in western countries is spontaneous and active while the suburbanization of cities in our country is organized and passive. At the same time, the reform of urban housing system, the transformation of old urban areas, the continuous improvement of urban infrastructure, the construction of new towns (including satellite cities) and the entry of foreign investment have also played an important role in the suburbization of urban areas in China. To great effect. Second, from the perspective of expansion mode, suburbanization of cities in our country is dominated by the expansion of the circle and the geographical differentiation of the social strata is not obvious; while in the west