改革开放以来西宁市主城区人口空间分布变动趋势研究  

Study on the Trend of Population Spatial Distribution in the Main Urban Area of Xining since the Reform and Opening-up

作　　者：马晓帆 张海峰 高子轶 孙骜 MA Xiaofan;ZHANG Haifeng;GAO Ziyi;SUN Ao

机构地区：[1]青海师范大学地理科学学院

出　　处：《现代城市研究》2019年第11期20-25,共6页Modern Urban Research

基　　金：国家自然科学基金项目(41661038);青藏高原中心城市空间扩张与城市社会空间结构响应研究——以西宁市为例;青海省科技厅软科学研究计划项目(2015-ZJ-602);青海省东部城市群资源环境承载力研究

摘　　要：基于西宁市1982-2010年人口普查数据,利用人口分布结构指数、Theil系数、标准差椭圆,对西宁市主城区人口空间分布变化进行研究。发现了:①近30年西宁市主城区人口空间分布人口郊区化趋势明显,说明人口空间分布趋于离心分散状态;②在城区内街道间的层面上,城北区出现人口极化现象,另外三个城区人口分布呈离心分散状态;③主城区人口集聚区域分布呈"东南-西北"方向,对标准差椭圆的整体、顶点、重心分析,发现主城区人口集聚区域逐渐向西南与西北方向扩展。Based on the census data of Xining city from 1982 to 2010,the spatial distribution trend of population in the main urban area was analyzed by using population distribution structure index,the Theil coefficient,and the standard deviational ellipse.The results show that:(I)the trend of population suburbanization is obvious,and the spatial distribution concentration index and the Theil coefficient of the main urban area have increased first and then decreased in the past 30 years,which indicates that the spatial distribution of population tends to centrifuge and decentralized;(2)at the level of inter-streets in urban area,the spatial distribution concentration index and Theil coefficient of population in the northern urban area is increasing gradually in the past 30 years,the other three urban areas first increased and then decreased,indicating that population polarization exists in the north of the city,and the population distribution in the other three urban areas is centrifugal and decentralized;(3)the regional distribution of population concentration in the main urban areas is in the direction of"southeast-northwest".By analyzing the whole,apex,and the gravity center of the standard deviation ellipse,it is found that the population concentration in the main urban area is centrifugal.The agglomeration area gradually expands to the southwest and northwest direction.

关 键 词：西宁市 人口空间分布 THEIL系数 标准差椭圆 主城区 

分 类 号：K901.3[历史地理—人文地理学]