经济视角下四川省人口空间分布与演变特征

Spatial Distribution and Evolutionary Characteristics of Population in Sichuan Province from an Economic Perspective

引入重心模型、相关分析、熵权法等研究方法,以四川省的21个地级市(州)为研究对象,采用四川省的人口与经济数据,综合分析经济视角下四川省人口空间分布及其演变特征。研究发现:2010-2020年四川省人口重心呈向西移动的趋势;市域尺度上,人口密度存在空间自相关;人口性别比呈下降的趋势,城镇人口比重呈上升的趋势,人口出生率、死亡率及自然增长率在波动中下降。经济重心总体呈向东北移动的趋势,均位于成都市,可见成都市经济发展水平高;区域经济空间结构较稳定,经济体具有保持原有状态的“惰性”。四川省的经济发展水平和人口密度之间存在显著的正相关,经济发展水平较高的地区资源聚集,形成典型的“增长极”,人口流动量、人口规模、人口增长量相对较大,是典型的人口与经济活跃区,而经济发展水平较低的地区的状态则相反。

In this paper,21 prefecture-level cities in Sichuan province are selected as the research objects,and the spatial distribution and evolutionary characteristics of population in Sichuan province from the economic perspective are comprehensively analyzed by using population,economy data,barycenter model,correlation analysis and entropy weight method.The results show that:The centers of population gravity in Sichuan province are moving westward from 2010 to 2020.At the municipal scale,population density has spatial auto-correlation.The sex ratio of population showed a decreasing trend while the proportion of urban population showed a rising trend and the birth rate,death rate and natural growth rate declined in the fluctuation.The economic center shows a trend of moving to the northeast generally,but all of them are distributed in Chengdu.It can be seen that Chengdu has a high level of economic development.The spatial structure of regional economy is relatively stable.There is a significant positive correlation between the level of economic development and population density in Sichuan Province.The area with higher economic development level gathers resources and forms a typical“growth pole”,with relatively large population flow,population size and population growth.It is a typical active area of population and economy,while the area with lower economic development level is in the opposite state.