摘要
为寻找云南省人口密度函数最优拟合模型,了解人口在空间上分布的不均衡性规律,且为相关部门更好地进行区域人口的合理化布局提供理论支持。文章利用2013年云南省各县级行政单元人口及面积数据,借助GIS技术提取各县级行政中心的几何中心,基于地统计学的方法对人口密度数据作探索性数据分析和数据趋势分析,在此基础上进行人口密度空间分布相关与变异分析。结果表明:云南省2013年人口密度的空间分布极不均衡,为高狭峰型正偏态分布;在东西向,人口密度自东向西呈减少趋势,在南北向,呈中部高,南北低的空间分布格局;利用交叉验证得到的指数模型为云南省2013年人口密度变异函数的最优拟合曲线模型;人口密度空间分布不均匀,总体上形成了滇中(昆明坝子)人口聚集区、滇西北和滇西南人口稀疏区三大地域单元的人口分布格局。
To look for the optimal fitting model of population density function in Yunnan province, and understand the imbalance of the spatial distribution of population, and to better provide related departments with theoretical support for the rationalization of regional population layout. In the paper, according to the data of population and area of county level administrative unit in 2013 in Yunnan Province, extracted the geometry center of county administrative of Yunnan Province by the technique of GIS, and use the method of exploratory data analysis and trend analysis to population density based on geostatistical analysis. And then, carry through on Spatial distribution and variation analysis. The results show that the spatial distribu- tion of population density of Yunnan Province is unbalanced and its high population density is in a high narrow range in 2013 ;The curve fitting of the population density showed a trend of decreasing from east to west, the density is high on middle area and low on north and south parts;The exponential model is best fitted curve model obtained by the variation function optimal of population density for Yunnan province in 2013 ;on a whole, it is generally formed three geographical unit of the population distribution patter because of the uneven distribution of population density, they are＂ the accumulation area of population in kunming Bazi＂ and＂the tiny population area in the northwest and southwest of Yunnan province.
出处
《楚雄师范学院学报》
2016年第9期79-84,共6页
Journal of Chuxiong Normal University
基金
国家自然科学基金项目"云南高原喀斯特石牙坡地土壤水蚀机制研究"
项目编号:41261067
关键词
云南省
地统计
克里格法
人口密度
Yunnan province
geostatistics
Kriging
population density
