2000—2010年西安市人口空间结构演化研究——基于城市人口密度模型的分析

Population Spatial Structure Evolution in XI'AN City during 2001-2010:Based on the Urban Population Density Functions

基于西安市第五次和第六次乡级人口普查数据,在ArcGIS10.0环境下实现人口数据空间化,分别基于不同的空间尺度建立单中心人口密度模型,基于不同的主副中心依存关系假设建立多中心人口密度模型。人口密度模型揭示西安市正处于城市快速成长阶段,中心区局地正增长与负增长交替,主城区人口虹吸力强大,近郊区人口快速增加,偏远地区人口逐渐减少。2000年西安市人口分布以钟楼为中心呈现单中心集聚形态,2010年人口分布已呈现显著的多中心形态,并以康复路和土门人口集聚中心的离散效应较大,其他人口集聚中心的极化效应较大。钟楼主中心的重要性依然强大,但已随着若干城市副中心的快速发育而影响力相对减弱。

By using of the China Census data of Xi＇an City in 2000 and 2010,realizing the population data specialization by GIS. To establish the monocentric and polycentric model on city population density. The functions reveals that：Xi＇an city is at a rapid development stage;There is a Alternating with positive and negative growth in the three center districts;The siphon force of population is strong in the main urban area;The population is increasing fast in the suburban area,and reduce in the rural area. The population spatial was monocentric structure in 2000,but polycentric structure in 2010. The discrete effect was show in Kangfulu and Tumen sub-centers,as well as polarization effect in other sub-centers. The influence of the Bell Tower is remaining strong,but had been weakened as the rapid developing of sub-centers.