Study On Tourism Central Place's Hierarchy System And Function Optimization Of Yangtze River Delta Area

The Yangtze River delta area is the region which has the multiple concepts, This article refers to the Yangtze River delta for tourist significance, Including Shanghai, Nanjing, Zhenjiang, Yangzhou, Changzhou, Wuxi, Suzhou, Nantong, Hangzhou, Jiaxing, Huzhou, Ningbo, Shaoxing, Zhoushan, Wenzhou, altogether 15 tourist cities.This article has analyzed the relationship between tourism central place and tourist central city, the condition that tourism central place should have, the type and the growth mechanism of it; Take this as the foundation, the author has established the appraisal index system for tourism central place; Using the principal components analysis and cluster analysis, tourism central places can be divided into four hierarchic ranks; Using the gravitational model and Gini coefficient, The influenced spatial region, dynamic characteristic of spatial structure and the development tendency of tourism central places of Yangtze River Delta has studied.The result indicated that: First, The diffirence of tourist comprehensive strength of tourism central places is obvious, Basically presents the pyramid type distributed pattern, that is taking Shanghai as the first level, Hangzhou, Nanjing and Suzhou for the second level, Wuxi, Ningbo, Shaoxing, Wenzhou, Changzhou for the third level, other cities for fourth level. Second, the influenced spatial regions of tourism central places is basic correspond with their hierarchic ranks, that is to say, the rank level is high, the influenced spatial region of tourism central spaces is wide, generally speaking, the influenced region is wider than the administrative area; Vice versa. Third, since 1997, The general trend of spatial structure's dynamic characteristic is diffused gradually, but the diffused rate displays differently in some kind of degree; In the future, the evolutive leading direction of spatial structure will still proliferates; On all accounts, in the universal development foundation, continues to present the spatial pattern which is taking Shanghai as the center, Nanjing, Hangzhou, Suzhou for the inferior center.