The Analysis on the Regional Economic Difference of Time Space in Guizhou

Based on the economic development data of 88 counties (cities，districts) in Guizhou，the paper analyses the differences of county economic strength by combining with the principal component and ESDA.the results showed that the differences of county economic strength in Guizhou was significant and expanded to some extent；the economic strength of counties which lie in the western Guizhou was dramatically strengthened；the economic framework mainly presents “convex” type；the layered structure centering on Guiyang was initially formed；the level of county economy development and traffic conditions was significantly associated；the number of developed counties were increasing，the scope of spatial agglomeration was constantly expanding；county economic strength took on the feature of geographical agglomeration and presented significantly positive spatial autocorrelation in Guizhou；the dual structure of economic development was serious，and the overall level was very low；a space structure was formed that the developed regions centered on the urban districts of Guiyang，and the backward areas were mainly in the eastern Guizhou and southern Guizhou；spatial diffusion effect of economic development was enhancing，the polarization effect was weakening，but the polarization effect of county level cities were still outstanding.