在全球化的背景下, 中国大都市的社会空间正经历着复杂而深刻的变化, 居住空间分异现象已经在多种地域尺度上存在。中国居住空间分异的原因与国外不同, 收入差距带来的社会分层以及政府“经营城市”的理念是加速分异的主要原因, 其直接后果是在社会空间上造成不同阶层的隔离和集聚, 并在公共产品的供给上影响弱势群体。混合居住是改变城市居住空间分异的应对策略, 但在自由和商品化的城市住宅市场中, 不同阶层人群的分区居住是必然的现象, 因而混合居住模式能否成功运作, 有赖于一定的社会经济和政策基础, 尤其是政府的主动介入和积极引导。

With the ongoing process of globalization, the social space of a metropolis in China has witnessed profound changes, one of which is the residential differentiation that has appeared in various geographic scales.The reasons of residential spatial differentiations in China differ from those of other countries.The primary reasons of accelerating differentiation lie in the social stratification triggered by the gap of income and the concept of "city management" held by government.These two factors have contributed to segregation and congregation of different social classes, which has consequently exerted influences on disadvantaged groups in terms of provisions of public goods.The mixed-income housing is a solution to alter residential differentiations.However, separated residence for different social classes is an inevitable trend in consideration of commercialized urban real estate markets.Therefore the effectiveness of mixed-income housing depends on certain economic and political bases, in particular government's active leading role.