基于GIS的四川省市域常住人口分布特征研究

Distribution of Permanent Resident Population in Sichuan Province at Prefecture-level City Scale Based on GIS

以2010、2014、2018年地级市常住人口为基础数据,借助ArcGIS与ArcScene工具,选用人口密度分析、人口重心分析、空间自相关分析与探索性数据分析等,以及三维可视化等方法对四川省市域常住人口分布状况与规律进行了研究.结果显示四川省市域常住人口分布存在空间正相关性;四川省市域常住人口呈现出“东密西疏”的人口空间分布特征;四川省人口重心大体由东向西偏移,往成都市方向靠近,整体仍处在四川省东部.

The object of this thesis is based on the resident population of prefecture-level cities in 2010,2014 and 2018.The methods,including population density analysis,population center of gravity analysis,exploratory data analysis and three-dimensional visualization and spatial autocorrelation analysis are selected by means of ArcGIS and ArcScene tools to study the distribution and regularity of permanent population in Sichuan Province.The results show that there is spatial positive correlation in the population distribution of Sichuan Province.According to the three-year population density distribution map,it can be seen that the resident population of Sichuan Province is characterized by concentrating in the east and distributing in the west.From the map of population center of gravity,we can see that the population center of gravity is generally offset from east to west,approaching Chengdu,but the whole is still in the eastern part of Sichuan Province.