银川平原人口空间分布研究

Spatial Distribution of Population in Yinchuan Plain

在西部大开发战略的指导下,宁夏银川平原的社会经济发展迅速。但在特殊的地域差异性和政策等因素的驱动下,银川平原的人口空间再分布也出现了新的特点。为揭示这些新的特征和规律,为银川平原的人口空间布局优化提供参考,文章通过对人口空间分布格局、人口空间分布演化过程进行分析,得出银川平原的人口分布特征。同时,通过对人口和经济的空间关系进行比较,探讨银川平原人口分布的合理性。结果表明:银川平原人口重心向东北向移动时,人口不均衡指数降低,人口即趋于均衡;向西南向移动,人口不均衡指数升高,人口趋于集中分布。除此之外,人口重心和经济重心在东西向上逐渐分异,但在南北方向上大体一致。

Under the guidance of the western development strategy,Yinchuan Plain in Ningxia gets rapid social and economic development. However,because of exceptional geographical differences and policy factors,the spatial redistribution of population in Yinchuan Plain displays new features. To reveal these new features and rules and to provide optimized reference for the spatial distribution of population in Yinchuan Plain, this paper analyses the spatial distribution of population structure, spatial distribution of population evolution process, finally finds the demographic characteristics. At the same time, through comparing the spatial relationship between population and economy in Yinchuan Plain, discuss whether population distribution is reason- able. The results show that ： the population center of gravity moves to the northeast, the population imbalance index decreases, which proves population distribution tends towards equilibrium; southwest to move ,the population imbalance index increases, which proves population distribution tends to concentrated distribution. In addition ,the population center and economic center of gravity have gradual differentiation in the east-west direction ,but keep same in the north- south direction.