DIFFERENCE OF COUNTY REGIONAL ECONOMIC DEVELOPMENT LEVEL IN CENTRAL YUNNAN ECONOMIC ZONE

Study on of the difference of county regional economic development level is of important theoretical and practical significance to the main function region's construction and the coordinated development of the region economy. Based on the data of statistical yearbook of 42 counties( cities,districts),Principal Component Analysis has been used to analyze the spatial pattern and time variation characteristics of county regional economic development level in Central Yunnan Economic Zone( CYEZ). The results indicated that:( 1) The economic spatial structures of the CYEZ show n as Pole-axis. The difference of county regional economic development level w as great;( 2) From 1999 to 2009,the difference of county economic development level had enlarged in w ave's model. The spatial structure in this region evolved from pole nucleus type to Pole-axis type gradually. In order to get a harmonious development of w hole regions,some measures should be taken: strength the radiation effect of grow th poles,optimize the regional spatial structure and promote the industrial structure adjustion and coordinating development coordinating development based on the local conditions.