Spatial Distribution of Population in Metropolitan Beijing Since 1990

Based on 1990,2000,2010 census data,with the aids of exploratory spatial data analysis methods,the paper discusses the spatial distribution and trends of population density in metropolitan Beijing.It shows that the population in the urban core area increases slightly from 2000 to 2010,and the growth rate in outer suburb outpaces the inner suburb.Global Moran′s I of 1990,2000,and 2010 indicate that there is significant spatial clustering in Beijing.Local Moran′s I show that the high-high spatial clustering spreads out from the second ring road since 1990.New high-high clustering mainly locates in the Northwest and in the North,and the number in the urban core area drops.The low-low spatial clustering mainly locates in the fringe of metropolitan Beijing,and it continues to concentrate in Mentougou district and Fangshan district from 1990 to 2010.It indicates that population concentrate in inner suburb and the new towns in outer suburbs since 2000,at the same time,population outflow from the central area.