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STUDY ON THE SPATIAL VARIATION AND IMPACT MECHANISM OFSTUDY OF EXCELLENT TOURISM CITIES IN CHINA

At present, China has a total of 339 excellent tourism cities, which have become the important bases and core strength of China's tourism industry. Excellent tourism cities in different levels of scale have formed an open and orderly tourism destination system through transportation and other ways. Currently, the researches of this issue are relatively rare, and most of them are ignoring the spatial and temporal evolution rules of the excellent tourist cities. Combined with the ArcGIS and GeoDa spatial tools, this article applied the nearest neighbor index, Moran's I and hotspot analysis method to analyze the spatial and temporal differences of China's excellent tourism cities in 1998, 2004 and 2010. The result shows that the spatial and temporal evolution rules of excellent tourism cities are as follows: Firstly, the national excellent tourism cities rendered a distribution pattern of "East dense, west sparse", and distributed along the transportation routes, rivers and coastlines. They also spread to the central and northeastern areas from the eastern coastal areas. Secondly, the spatial distribution of excellent tourism cities is condensed, and the regional balance is low. Thirdly, there is a significant positive correlation feature of the spatial pattern, and the overall trend is declining and the low assembles are enhancing constantly. Fourthly, the development trend of the spatial pattern is unstable. Last but not least, analysis of regional economic differences and their causes is very important to accelerate the development of the under-developed regions and keep the competitiveness of the developed areas. The focus of our future work could be transferred to the destination system construction, function of modern tourism cities, tourism management system, tourism market positioning and so on.