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文章依据近百年来分区域人口统计数据建立动态模型,分析甘肃省人口分布的时空变化特点。近百年来甘肃经济社会状况的巨变引起75个县的人口密度和人口比重的变化,特别是以兰州市为重心的陇中地区人口比重持续上升,反映了工业化、城镇化过程对人口分布的集中效应;而陇南地区在人口密度快速增加的同时人口比重持续下降,反映了资源环境对人口增长的约束。各地区的人口密度、人口比重与时间序列具有良好的相关性。
Based on the past 100 years, the article establishes a dynamic model of sub-regional population statistics to analyze the spatial and temporal changes of population distribution in Gansu Province. The dramatic changes in the economic and social conditions in Gansu over the past century have caused a change in the population density and population proportion in 75 counties. In particular, the proportion of population in Longzhong, with Lanzhou as its center, continues to rise, reflecting the concentration of population in the process of industrialization and urbanization Effect. However, while the population density in Longnan region increased rapidly, the proportion of population continued to decline, reflecting the constraints of population and resources on the environment. The population density and the proportion of the population in each region have a good correlation with the time series.