Spatio-temporal Characteristics of Regional Economic Differences in Xinjiang

Regional economic difference is an indispensable problem in process of economic development.Based on calculation of four regional economic evolution indices(Gini coefficient,capita income disparity coefficient,TW index,Theil index) combined with GIS analysis and spatial autocorrelation analysis,we discussed the characteristics of spatio-temporal evolution of regional economic differences in Xinjiang.Results showed:(1) Xinjiang's regional economic differences and polarization level enhanced;North Xinjiang's and South Xinjiang's regional economic differences were consistent with the whole's;North Xinjiang's and cities' regional economic differences affected obviously on the whole's.(2) The gravity center of regional economic development moved to north,and the polarization center appeared basically;high value areas covered northern slope of the Tianshan Mountains,and low value areas enlarged to the whole South Xinjiang;the high-high polarization effect of Kelamayi,which was North Xinjiang's polarization center,was obvious,but the high-high effect of Urumqi and Shanshan was not obvious;the high-low effect of kuala,which was the South Xinjiang's polarization center,was also not obvious,however,high-low effect of Akesu appeared recently,it will develop to be a new polarization center of South Xinjiang.