Evolvement of Spatial Pattern of Economy in Jiangsu Province at County Level

This article, taking Jiangsu Province as an example, describes the spatial changes of the diverse economy of Jiangsu at county level since the 1990s through the related analysis of ESDA as well as other tools such as Moran's I, Getis-Ord General G, Getis-Ord Gi and the function of variogram and its amount of fractal dimension as scale index. Based on four time discontinuity surfaces, some conclusions are drawn as follows. (1) Considering the overall spatial economic framework, the county economy of Jiangsu province shows a strong trend of spatial natural correlation. The similar areas cluster in space. The space structure of the hotspot distribution tends to be the circular space structure centered on Wuxi and Suzhou. (2) The development of the spatial economic growth framework is likely to be more stochastic and unstable in the aspect of spatial distribution. Hotspot areas are changing frequently without obvious appearance of geographical concentration. (3) According to the space-time mechanism, the Jiangsu spatial economic framework tends to be more continuous and self-organized, the random of the spatial differential pattern keeps decreasing and the mechanism of the structural differentiation caused by natural correlation in space is becoming more and more remarkable. The homogeneousness of economic development in the direction of northeast-southwest is typical for its relatively small spatial difference. As to the opposite direction, the spatial difference is great. (4) The driving force of the evolvement of Jiangsu economic framework can be identified through the following aspects: the basis of historical development, the economic location and the policies on regional development.