黔南布依族苗族自治州人口密度时空变化的分析

Spatio-temporal Change of Population Density in Qiannan Prefecture of China

本文以黔南布依族苗族自治州为研究区域,基于野外调查和社会统计资料,利用GIS和空间统计的方法,分析了黔南州各市县自1950-2010年间人口时空变化以及人口和经济发展的空间耦合关系。研究结果表明:1人口变化随时间序列的波动明显。3个阶段的人口平均每年变化率分别为1.56%、2.92%、-1.05%。2人口地域分布不均,涨幅差异明显。人口密度最大的县有都匀县、瓮安县,密度最小的县是荔波县。3人口-经济的空间耦合度差异明显。人口和经济耦合度高的县的个数在减少,耦合度低的县始终占总数的50%以上。

This research sets Qiannan Prefecture as a study area. Based on field surveys and social analysis,the research uses GIS and method of spatial analysis to make an analysis of spatial- temporal change of population and spatial relationship between population and economy. Results show: 1Population change with time is obvious. Average annual rates of population change in 3 phases are 1.56%,2. 92%,and- 1. 05% respectively. 2 Spatial distribution and growth rates of population vary from counties,and Duyun and Wengan have maximum population density while Libo has the minimum one. 3The spatial relationship between population and economy ranges from one county to another. The number of counties which has high spatial coupling is decreasing; at the same time,the number of counties which has lower spatial coupling makes up more than 50%.