聊城市人口密度空间化方法探讨与运用

Discussing and using the method of population density spatialization of Liaocheng City

人口的空间分布是指一定时点上人口在各地区的分布状况,是人口过程在空间的表现形式.在考虑人口分布受自然、社会、经济等因子影响的情况下,文章采用相关分析法,得出聊城市人口密度分布与道路密度分布关系密切的结论,其相关系数为0.829 5;在此基础上采用属性数据栅格化、数字人口模型(DPM)、数据内插,尤其是点内插与面内插相结合的方法对聊城地区人口密度空间分布进行模拟,进而得出区域内部人口密度空间分布的连续变化规律并对该分布规律进行相应分析.

The spatial distribution of population, which means the distribution situation in various regions based on a definite time and space, is a form of population process in space. This paper uses the method of relevance analysis and draws the conclusion that there is a close relationship between the population distribution and the roads, and that the correlation coefficient is 0. 8295. And on the basis of the above conclusion, we make a simulation to the population distribution in the region of Liaocheng by using the methods of spatial analysis, such as the rasterization of attribute data, the data interpolation, the digital population model （DPM） and so on, gain the regularities of the continuous change of the population＇s spatial distribution in the area and analyze the distribution results accordingly .