The Spatial Structure of Regional Tourism System: Its Model and Optimization--A Case Study of Xi''an
区域旅游系统空间结构的模式与优化 ——以西安地区为例

Based on the analysis of the study of the spatial structure of regional tourism at home and abroad, the paper discusses the model and optimization of the spatial structure of regional tourism system, taking Xi'an as an example. Firstly, "the spatial structure model" of Haggett and "destination belt model" of Gunn are evaluated, and the spatial structure model of tourism system is re-constructed, which composes of 6 elements including tourism destination region, tourism district, node, route, gateway and oriented market. Thus, the evolution shapes and characteristics of the model in different stages are explained according to the time order of the tourism development. Secondly, it is proved by the positive analysis that the spatial structure of regional tourism system in Xi'an tourism district at present is at the radiation model stage, and with the re-organization and optimization of its spatial structure and tourism routes, the optimal and perfect model in Xi' an tourism district should be extension model.