The Spatial-Temporal Evolution Research of Yunnan Central Urban Agglomeration's County-Level Economic Structure Based on GIS

Through taking the county level as the unit, per capita GDP, net income of the rural households and disposable income of urban residents as the evaluation indexes, and 42 counties in Yunnan central urban agglomeration as the research objects, the spatial-temporal pattern difference of Yunnan central urban agglomeration's economy from 2002 to 2011 is studied in this paper based on Geoda and ArcGIS analytical technology and spatial statistical analysis. Through the research on the global evolution and local evolution of the economic spatial structure with spatial autocorrelation method, the results show that since 2002, the economy in Yunnan Central urban agglomeration area has developed rapidly, centered on Kunming and based on the axes of Kunming-Qujing, Kuming-Yuxi and Kunming-Chuxiong, the economic structure has developed in counter radiation way, and driven the rapid development of the Yunnan Central economy.