THE COUPLING RELATIONSHIP BETWEEN POPULATION AND ECONOMIC IN POYANG LAKE ECOLOGICAL ECONOMIC ZONE

The changes in the distribution of population and economic are very important in the regional studies.Thanks to the help of population and GDP data of Poyang Lake Ecological Economic Zone in 1998-2008,based on the methods of regional gravity center and geographic concentration index,the coupling characteristics of the population and the economy of Poyang Lake Ecological Economic Zone is analyzed,and the economic zone has been divided into five types by coupling index.The following conclusions are found:(1) The gravity center of population and economic are both located in the southwest direction of the geometric gravity center of Poyang Lake Ecological Economic Zone.They both move forward to the north of the whole region in the first phase,and swing on the Ease-West direction the next phase;(2) The coupling relationship of gravity center between population and economic are obviously at the macro-trend;(3) The degree of geography concentration of population and economic in the South is higher than it in the north;(4) High-value area of population and economic gathered around the center city of the economic zones;(5) The major axis of the concentration of population and economic is Jiangxi section of Zhejiang-Jiangxi rail,the minor axis is Nanchang-Jiujiang rail;(6) The population and economic concentrated along the Zhejiang-Jiangxi rail at the first phase,and concentrated along the Nanchang-Jiujiang rail at the next phase;(7) The geography concentration index are high related between population and economic;(8) According to coupling index,the Poyang Lake Ecological Economic Zone can be divided into five types of economic polarization,economic advance type,the coordinate development type,lag-economic type and poverty-economic type.