County Economy Differences' Temporal-Spatial Evolution in the Midstream of the Yangtze River Economic Area
以人均GDP为指标，分析了2001-2010年长江经济带中游地区县域经济差异的时空特征，发现绝对差异扩大、相对差异呈M型变化，并探讨了经济基础、行政、产业和市场因素的影响。
Taking the per capita GDP as the index, using the method of traditional statistics and ESDA, this paper analyzed the temporal and spatial characteristics of the Midstream of the Yangtze River Economic Area's county economy differences from 2001 to 2010.Then it preliminarily explored the impact factors by multivariate linear regression analysis method. The results show that:(1) The absolute difference of economic zone enlarges constantly, but the relative difference has a changing trend ofM; The internal differences of Wuhan City Circle and Ring ChangshaZhuzhou- Xiangtan Urban Agglomeration are the main contribution to the Economic Area's differences; The Global Moran's I index is positive and the spatial correlation of counties' economy has the tendency that waves down.(2) Highlevel counties are increasing and they focus on counties under the jurisdiction of provincial capital cities, urban districts of the prefecture- level cities, county- level cities; County economy development level is different between south and north; County economy has two obvious levels ofcore- edgespatial structure.(3) The multiple linear regression analysis shows that: the economic basis factor has the largest impact on economic differences; Administrative factor is the second and industry factor the third; The effect of market factor is the lowest.