摘要
采用2003―2012年非洲52个国家(地区)的人口、GDP和国土面积数据,运用地理集中度、耦合指数与区域重心等方法分析了近十年非洲地区人口与经济的耦合特征。结果表明:人口地理集中度呈现出东西高、中部低格局;经济地理集中度总体呈现出四周高、中部低的"盆地状"格局,整体上两者呈现出中度的正向相关性。根据耦合指数,非洲地区可划分为5个类型:经济极化型、经济超前人口发展型、协调发展型、经济滞后人口发展型与经济严重滞后人口发展型。非洲地区人口重心与经济重心均位于几何重心的东南方,2003―2009年,两者耦合关系明显;2010―2012年,两者延伸轨迹出现一定程度的偏移,经济危机与政治危机是造成两者偏移的重要原因。
In the regional study,one of the significant topics is the change in distribution of population and economy.By using the methods of regional gravity center,coupling index and geographic concentration index,with the population and GDP data in Africa in 2003-2012,the coupling characteristics of the population and the economy of Africa are elaborated in this paper.The conclusions are as follows：1） The degree of geographic concentration of population was higher in eastern and western Africa,in comparison with that in central Africa;2） The degree of geographic concentration of economy was lower in central Africa than that of the surrounding regions;3） There existed a moderate positive correlation between the degree of geographic concentration of population and that of economy.4） According to coupling index,Africa can be divided into five types：economic polarization,economy ahead of population,coordinate development,economy lagging behind population,and economy lagging far behind population.5） The gravity centers of population and economy were both located in the southeast direction of the geometric gravity center of Africa.During 2003-2009,at the macro-trend,the coupling relationship of gravity center between population and economy was obvious;during 2010-2012,the extending tracks of gravity center of population and that of economy were different because of economic crisis and political insurrection.
出处
《热带地理》
2016年第5期823-832,共10页
Tropical Geography
基金
国家自然科学基金项目(41371024)
关键词
人口
经济
耦合关系
非洲
economy
population
the coupling relationship
Africa
