基于栅格数据的山区人口分布规律研究

Population Distribution in Mountain Area Based on Raster Data

在人口密度栅格数据基础上定量分析了山区人口分布与地形、土地利用、道路、河网以及居民点之间的关系。结果表明山区人口密度与高程、坡度呈显著负相关,相关系数在-0.83以上;与道路、河流存在类似关系,即距离越远人口密度越低,与河流相关性较弱;居民点密度一定程度上直接反映了人口的分布状态,人口密度与中心城市距离存在较高的负相关性,相关系数达到-0.804;与土地利用关系密切,建设用地和耕地中人口密度明显高于其他类型。

： Based on raster data of population density, this paper analyses the relationships between population distribution and ten＇aim land use, roads, rivers, and residential areas from the quantitative point of view in mountain area. The result shows that there exist significant negative correlations both more than -O.b13 between population density and elevation, slope; there have a similar relationship that farther away from roads and rivers, lower the population density between the population density and roads, rivers, however weak correlation with the rivers： residential density to some extent is a direct reflection of the distribution of the population, the conelation coefficient between population density and distance from the center city was -0.1ql）4; population density and land use was closely related, population densities in construction land and larmland are significantly higher than in other types.