中文摘要：

依据第6次人口普查数据,利用因子生态分析方法对兰州城市社会空间结构进行全面剖析.结果表明,外来人口、国家干部与专业技术人员、少数民族人口、高学历人口、农业人口和产业工人等为兰州城市社会空间结构形成的主要因子.运用聚类分析方法将其社会空间划分为6大类型,即：机关干部与技术人员集中区、流动人口集中区、工人及低收入人口聚居区、少数民族人口聚居区、高学历人口集中区、郊区农业人口聚居区.据此将兰州城市社会空间结构概括为带状多中心主导下的混合模式.在此基础上,指出其形成缘于自然环境的制约、历史沿革的积淀、城市规划的引导和社会经济的发展.

英文摘要：

Since the reform and opening up, rapid agglomeration and development have been carried out in cities in northwest China. Lanzhou is a valley-city that is in the middle age of industrialization and its social spatial structure shows a trend of diversification and complexity. An ecological analysis was made to research into the urban social spatial structure based on the sixth national census data at the sub-district （jiedao） level in Lanzhou collected in 2010. The analysis indicated that six factors have had a significant impact on Lanzhou City＇s social spatial structure, and the main factors are external population, state officials and professional workers, minority population, highly educated people, agricultural population and industrial workers. From the results mentioned above, a cluster analysis was made to divided the city into six type of social areas： 1） Areas of densely government officials and professional workers, located in the south side of the Yellow River, including the old downtown of Chengguan District, which is the center of the city, as well as the old downtown of Qilihe District. Xigu and Arming Districts serve as sub-centers; 2） Areas of densely floating population, located in east part of the southern side of Yellow River; 3） Areas of workers and poor people, located in periphery of downtowns; 4） The minority communities, located in the bordering places between Chengguan and Qilihe Districts; 5） Areas of densely highly educated people, located in limited sub-districts in the Chengguan, Qilihe and Anning District; 6） Areas of farming people~ located outside of built-up areas. The urban social spatial structure in 2010 mainly exhibited a mixed model of zonal multi-centered belts. Lanzhou＇s socio-spatial structure as formed on the basis of its physical geographical environment between the Yellow River and mountains, is the root factor that has led to its historical urban evolution, present urban planning and socioeconomic development.