陕西省人口分布的空间特征及其演变趋势

随着社会经济的不断发展,陕西省人口分布发生了明显变化.探究这种变化特征和趋势对协调区域人口的合理分布具有重要意义.采用空间自相关、人口结构指数、人口重心等研究方法,以陕西省97个县级行政区为研究单元、1990-2010年为研究区间,选取人口数和人口密度为研究对象,对陕西省人口分布的空间特征及其演变趋势进行了描述.结果表明,陕西省人口分布存在“中间高—南北低”的格局,人口密度空间分布呈正的空间相关性,人口集聚性较强.随着时间推移,集聚性趋势略有减弱,人口分布的不均衡性较显著,表现出上升趋势;人口重心向东北方向移动,移动速度有所加快.

Spatial Characteristics of Population Distribution and Its Evolution Tendency in Shanxi Province

Using the index of spatial autocorrelation, population structure, population center of gravity, and other research methods, and some theory guilds taking out 97 administrative region in province as the research unit, and using 1990- 2000 as the research range, selecting population and population density as the research object, the characteristics of population spatial distribution in province and its space - time evolution trend were de- scribed, and then got the following conclusions：The population spatial distribution in was the pattern of ＂middle high- north and south low＂ character- istics. In Shanxi Province population density spatial distribution was spatial correlation, the population agglomeration was stronger, and integration trend was slightly weakened over time. The imbalance of the spatial distribution of population was more obvious and it had a rising trend. The center gravity of population moved to northeast, whose movement speed was accelerated.