环境最小限制率在人口分布中的实证研究--以吉林省为例

Demonstrating the Environmental Law of the Minimum Limitation for Population Distribution:A Case Study for Jilin Province

为了实证环境最小限制率在人口分布中的适用性,文章选取热量、水资源、地形地貌、土壤等4个因素,根据最小限制率,以1平方公里为评价单元来评价吉林省环境质量,并在县(市)级尺度上统计分析其与第五次人口普查多个统计指标人口密度间的相关系数。研究发现,环境质量对乡村人口和农业人口的分布具有直接和重要的影响,对城镇人口和非农业人口的分布影响较小;相对于整体人口分布而言,环境最小限制率更适于研究乡村人口和农业人口的分布。

To demonstrate the applicability of environmental law of the minimum for population distribution,four factors (heat,water resource,terrain and soil) were chosen to evaluate environmental quality of Jilin Province in 1 km2 scale.Then,correlation coefficients between environmental quality and several population densities in county scale were calculated.The main results are:(1) environmental quality has larger influence on distribution of rural population and agricultural population than urban population and non-agricultural population,(2) environmental law of the minimum limitation is more applicable for examining the distribution of rural population and agricultural population.