摘要
中国人口空间分布的不均匀性是一种客观存在的现象,自从1935年胡焕庸先生提出"爱辉-腾冲线"以来,中国人口东西部的不均匀现象并没有发生显著的变化。这种不均匀不仅仅存在于"胡焕庸线"两侧,而是广泛存在的。本文引用经济学家研究收入分配平均程度常用的LORENZ曲线方法,结合相关图、表,对中国人口空间分布的不均匀性进行研究。通过对曲线特征点的分析,结合地图可视化可以形象地反映人口空间分布的特点,同时对人口空间分布进行定量化描述。
China＇s population distribution is guite ineguable. Such a kind of inequalities exists widely and changes slightly. Use for reference of economics we use the Lorenz curves to research these inequalities. Combining with the map visualization and corresponding tabular data we can make some quantitative analysis. We analyzed from two aspects, the horizontal and vertical direction. For convenient research we collect the 1 ： 250 000 databases, in- cluding residential area distribution and digital elevation modal data. Based on the research of China＇s township population distribution LORENZ curves, we found some changes in special densities and generated corresponding maps in order to show these inequalities vividly, and by research of the China＇s population-elevation distribution LORENZ curves we can compile different elevation population distribution maps to show these inequalities. Compared with the Gini coefficient we found that the inequalities in horizontal and vertical directions have different characteristics.
出处
《地球信息科学》
CSCD
2007年第6期14-19,F0002,共7页
Geo-information Science
