The Temporal-Spatial Evolution Characteristics of Population in Sichuan Province

As China's fourth largest population province, Sichuan province has great differences in natural and economic condition, which influence the spatial distribution of population. Based on the 2005 and 2012 census data, with the aids of statistical analysis and spatial autocorrelation analysis methods, this paper discusses the present situation of the population and its' density distribution and then analysis temporal-spatial evolution characteristics in Sichuan province.The research shows that:(1) this is a large spatial difference of population and population density in Sichuan province.Population is concentrated in the Chengdu plain, Northeast and South economic zone, which are mainly covered by hills and plains. Northwest and Pan-Xi economic zone, which are mainly of ethnic minority, are low in population and density.The distribution of population and economy is consistency.(2) The rapid population growth region of Sichuan province is in Northwest economic zone. The conclusions of population and population density changes are the same.(3) Falling in global Moran index shows resident population has a trend of dispersed in Sichuan province. Local Moran index reveals the high-high type is mainly distributed in Chengdu and east boundary of Sichuan province, and gradually extending in the direction from Chengdu to Chongqing. Low-low type is distributed in the vast Northwest economic zone, and hasn't change much.