摘要
基于DMSP夜间灯光数据及灰度密度-人口密度模型,在探讨模型阀值确定方法的基础上,估算广东省21个地级市2008~2012年常住人口,以常住人口与户籍人口的差值表示净迁移人口,作为人口流动格局研究的基础指标。全省人口净迁移量的Moran’I与GetisOrd Gi＊计算结果显示,广东省人口净迁移量呈显著空间正自相关,广东珠三角为人口净迁入热点地区。进一步的人口净迁移率变化特征聚类分析表明,2008~2012年省内各市人口流动变化模式可归结为5种类型,珠三角与非珠三角地地区呈两极化格局。研究成果一定程度上弥补了现有人口流动研究在时空尺度、数据来源方面的不足。
Based onthe DMSP night light data and the model called Grey-density-Population density,this paper estimate the permanent population of Guangdong province＇s 21 cities from 2008 to 2012 after discussing the method for determining the threshold of Grey-density-Population density model.Measured by the difference value between permanent population and registered population,the net migration is used as the basis indi- cator of population mobility pattern in Guangdong.The Moran＇I and Getis-Ord Gi＊ calculation results show that the net migration in Guangdong has significant positive spatial autocorrelation and that the Pearl River Delta is the hot spot for immigratory population in guangdong. According to the further clustering analysis on net rate of population migration variation characteristics, 5 types of variation pattern can be concluded from 2008 to 2012 and Pearl River Delta area and non Pearl River Delta area present a bipolar pattern. The results of research, to some extent, compensate the existing studies＇ deficiency of time and space scale and data sources.
出处
《特区经济》
2015年第7期38-41,共4页
Special Zone Economy
