Evolution and Spatial Characteristics of Tourism Scale Distribution in Xi′an Tourism Destination Circle
通过首位度指数、旅游基尼系数和旅游经济关联度，分析了西安旅游目的地圈旅游规模分布的演化与空间特征，发现其呈单极核辐射模式，西安首位度下降，游客和旅游经济趋于分散。
Tourism spatial structure is one of the main directions of tourism geography research.This paper analyzes the evolution and spatial characteristics of tourism scale distribution in Xi′an Tourism Destination Circle by Primacy Index,the Gini Coefficient for tourism and the degree of tourism economic association.Taking a preliminary exploration of the interactive response of Xi′an tourism and Xi′an Tourism Destination Circle development on each other,the results shows that Xi'an Tourism Destination Circle has a unipolar nuclear spheres structure,which presents a development mode of single nuclear radiation;Xi′an city is the tourism primate city of Xi'an Tourism Destination Circle,but the Primacy Index is becoming lower;The number of tourists and tourism economy all tend to dispersing,and the degree of dispersion of the tourism economy is more significant.In addition,tourism scale growth also presents some spatial characteristics,such as agglomeration,axis direction,regional disparity and structural scattering.