基于GIS的山东省人口重心迁移研究

STUDY OF THE MIGRATION OF POPULATION GRAVITY CENTER IN SHANDONG PROVINCE BASED ON GIS

采用人口重心模型，在GIS技术支持下，着重对1989～2004年山东省人口重心迁移特征进行研究，并在此基础上分析人口重心迁移的主要影响因素．结果显示，山东省人口重心接近几何中心，人口重心自东北向西南方向迁移的趋势明显，人口重心移动轨迹呈现出一定的曲折和波动．山东省人口重心迁移受自然、社会经济和政策等多种因素的影响．

Using population gravity center model and GIS technology, this paper makes emphases on the study of the characteristics of the migration of population gravity center from 1989 to 2004 in Shandong province. Based on it, the influence factors of the moving of the population gravity center are analyzed. The results show that the population gravity center approaches the geometry center in Shandong province, the trend that population gravity center moves from northeast to southwest is obvious, and the migration orbit of population gravity center demonstrates certain fluctuation. The migration of population gravity center in Shandong province is mainly affected by many factors such as nature, socioeconomic factor and policy, etc.