Study On Evolution Of Urban Spatial Structure In Nanning And Its Influencing Factors

One of the main characteristics of modern city is residential space differentiation.Study of urban social spatial structure, can ajust the structure of residential space,realize the impartiality of urban residential space resources, and improve urban lifequality.Based on literature and statistical data, the paper analyzed urban spatial structurein Nanning and its driving mechanism by using qualitative and quantitative analysismethods. The study of urban spatial structure in Nanning and its driving mechanismbefore1990mainly refered to historical literature data and used qualitative analysismethod, while the study of urban spatial structure in Nanning and its drivingmechanism from1990to2010maily adopted factor analysis and cluster analysis. Themain conclusions are as follows：Before1950, Nanning developed very slowly because of war, policy and so on.The urban social space of Nanning in Song dynasty formed a patten of two businessdistricts one administrative area, and in the Republic of China, Nanning formed apattern of space, belt and point.From1950to1990, the area of Nanning was expanding rapidly, so were thebuilt-up area and population. Nanning began to develop in the form of concentriccircle, and after1978, Nanning developed quickly based on the form. Before1978,the main influencing factor was politics, while after1978, the main factor waseconomy.From1990to2010, Nanning was developing in the form of concentric circle, butthe main influencing factors were different. The study of12streets of Nanning in1990used the fourth census. From which, the paper chose59indexes and then itextracted9main factors using factor analysis and they were population density factor,science and education factor, family size factor, the third industry factor, geological mining factor, service industry factor, city development indensity factor, populationmigration factor and transportation and telecommunication industry factor. Based onthe total score of each street, it divided the12streets into four categories by usingcluster analysis, and they were ordinary citizens with a dense population zone,floating population zone, intelligentsia gathered zone, practitioners in the serviceindustry gathering zone. Social space structure presented a "kind of concentric crumb"development mode.The study of13streets of Nanning in2000used the fifth census. From which,the paper chose78indexes and then it extracted6main factors using factor analysisand they were house quality factor, poverty population factor, science and educationfactor, population migration factor, family size factor, outer population.Based on thetotal score of each street, it divided the13streets into four categories by using clusteranalysis, and they were ordinary citizens with a dense population zone, intelligentsiagathered zone, poverty population zone and outer population zone. Social spacestructure presented a "kind of concentric crumb" development mode.The study of22streets of Nanning in2010used the sixth census. From which,the paper chose55indexes and then it extracted7main factors using factor analysisand they were population density factor, business service factor, agriculturalpopulation factor, high-quality population factor, science and education factorpopulation migration factor and outer population factor. Based on the total score ofeach street, it divided the22streets into six categories by using cluster analysis, andthey were mixed residential zone, work-class residential zone, the administrativeorgans workers practitioners gathering zone, agricultural residential zone, high-qualityresidential gathered zone, commercial service practitioners gathered zone. Socialspace structure presented a "kind of concentric crumb" development mode.The formation and evolution of urban social-spatial structure model of Nanningfrom1990to2010mainly affected by macroscopic development plans, urbanplannings and economic factors.