北京郊区化进程中人口分布与大中型商场布局的互动

INTERACTION BETWEEN POPULATION DISTRIBUTION AND DEPARTMENT STORES DISTRIBUTION AT THE BEGINNING OF THE BEIJING CITY'S SUBURBANIZATION

北京市目前正处于城市郊区化的初期,文章借助沃尔克人口重心和洛伦兹曲线,刻画出1991—2000年北京市城区人口分布的变化,并通过人口重心公式的转化使用,计算了同期城区大中型商场分布的变化。研究发现,在北京市由向心集聚型向离心分散型过渡的阶段,城区大中型商场的重心移动与人口重心移动方向基本一致,但是时间上存在大约2年的滞后。这说明人口郊区化对大中型商场分布郊区化有一个正向带动。同时大中型商场重心的偏移对人口的分布也有较大影响。

Beijing is beginning at its suburbanization. Using of Walk's population gravity center and Lorance curve, the artical describes the changes of the population distribution in Beijing city from 1991 to 2000, and then describes the distribution of the department stores by recurring to the formulation of gravity center. The result shows, in the course of Beijing city's transition from the gathering-type centripetally to scattering-type centrifugally, the shift direction of the department stores gravity center is accordant to that of the population gravity center. But its shifting speed lags about two years. This explains that population urbanization has a positive influence to the suburbanization of department stores distribution. The conclusion could guide the urban planners and department store enterprises or investors to grasp right opportunity to enter the market at the periphery of Beijing.