Based on the connotation of city tourism core competitiveness, this paper builds a evaluation system, which is covered 11 indicators, such as, the occurrence of city tourism resources, geographical index, the natural environment, income and market competitiveness, and so on. The principal component analysis method is used to analyze and evaluate tourism core competitiveness of the five provinces of the capital city along the Northwest Territories silk Road. The results show that: the comprehensive level of the core competitiveness of the sample cities is generally low, and it is divided into three levels: Xi'an is the strongest type of the core competitive power, Urumqi, Yinchuan and Xining are general types, and Lanzhou is the weakest type; the order of contribution rate of the three main factors that affect the core competitiveness of tourism is: tourism revenue and customer market (52.56%), travel resource location (24.92%), economic environmental factors (19.98%). And on the basis of the analysis of the advantages and disadvantages of tourism core competitiveness of every city, some recommendations are put forward to enhance the urban tourism core competitiveness.%基于城市旅游核心竞争力的内涵,构建出涵盖城市旅游资源赋存、区位指数、自然环境、收入和市场竞争力诸方面11项指标的评价指标体系,运用主成分分析法,对西北地区新丝绸之路沿线五省区省会城市的旅游核心竞争力进行定量分析评价.结果表明:样本城市旅游核心竞争力综合水平总体偏低,并分为3个等级:西安市为旅游核心竞争力最强型、乌鲁木齐市和西宁市为一般型、兰州市为最弱型;影响旅游核心竞争力的3个主因子贡献率的序次为:旅游收入及客源市场(52.56%)>旅游资源区位(24.92%)>经济环境因子(19.98%).并在剖析各样城市旅游核心竞争力优劣势的基础上,对提升其城市旅游核心竞争力提出思考和建议.
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