基于GIS的关中地区人口分布时空演变特征研究  

Analysis of Population Distribution Spatial and Temporal Evolution Characteristics in Guanzhong Zones Based on GIS

作　　者：赵沙[1] 张福平[1] 徐改花[1] 张东海[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710062

出　　处：《资源开发与市场》2011年第8期701-704,共4页Resource Development & Market

基　　金：陕西师范大学中央高校基本科研业务费专项资金(编号:GK200902021);陕西师范大学优秀科技预研项目(编号:200902005)

摘　　要：随着经济社会的快速发展,陕西省关中地区的人口分布发生了明显的变化。采用空间自相关、不均衡指数、人口重心以及偏移—分享分析等方法,结合GIS技术对20世纪90年代以来关中地区人口分布的时空演变特征进行了分析。结果表明:①关中地区各区县人口密度差异显著,整体分布呈中间高、南北低的态势,即位于渭河平原区的区县人口密度较高,其他地区人口相对稀疏;②各地区人口分布存在显著的正的空间自相关,表现为西安市市辖区周围地区呈现高高集聚,而北部、西部和东部的周边区县则存在低低集聚;③关中地区人口分布不均衡状态明显,且人口不均衡指数有不断增大的趋势;④各地区人口偏移增长量差异显著,地区之间的偏移增长量不断增大,人口重心逐步向关中东南方向移动。With the rapid economic and social development,population distribution occurred significant changes in Guanzhong Zones,Shanxi Province.In this study,using spatial autocorrelation method,unbalanced coefficient,population gravity center,shift-share analysis and GIS technology,the characteristics of population distribution evolution were analyzed in Guanzhong Zones since the 1990s.The result showed that：①Population density was significantly different in different countries.On the whole,its distribution was higher in the middle area and lower in south and north area,population density which located in the Weihe Plain Area was higher and other areas was sparse.② Population distribution had a positive spatial correlation,population around Xi′an was＂high-high concentration＂and in northern,western and eastern area displayed＂low-low concentration＂.③Population distribution was significantly imbalanced and its imbalance trend was increasing.④Population growth shift was significant differences and its index was increasing in different areas,population gravity center was moving to the southeast of Guanzhong gradually.

关 键 词：人口分布 空间自相关 偏移—分享法 关中地区 GIS 

分 类 号：C922[社会学—人口学]