Abstract：
The construction of the world tourism destination on the Tibetan Plateau is inseparable from the traditional tourist attractions, which are significant landscape ecological units. Based on the data of high-grade tourist attractions on the Tibetan Plateau, the spatial heterogeneity and influence factors are studied employing the Standard Deviation Ellipse (SDE), Kernel Density Estimation (KDE), spatial autocorrelation (SA), and modified tourism gravity model methods. The results show that: (1) the overall spatial distribution characteristic of high-grade tourist attractions is in the direction of northeast-southwest, with solid centripetal force, and the center of gravity of the ellipse is in Yushu City. (2) The spatial heterogeneity of the kernel density distribution is remarkable, clustered in the southeastern half of the plateau, showing a double nucleus-driven and strip-connected pattern. The distribution among cities has a hierarchical heterogeneity, and the two capital cities of Xining and Lhasa play a crucial role. (3) The high-grade tourist attractions are spatially dependent, with evident characteristics of large dispersion and small clustering, and the spatial association type is mainly negative. (4) This paper verifies the significant single-factor mechanism affecting the spatial distribution from supportive and intrinsic dimensions with natural environmental base, tourism resource endowment, socio-economic development, transportation location constraints, and spatial tourism linkages. Finally, the article provides suggestions for the high-quality development of high-grade tourist attractions on the Tibetan Plateau.
摘要：
青藏高原世界旅游目的地的建设离不开传统的旅游景区,是重要的景观生态单位。基于青藏高原高品位旅游景区数据,利用标准差椭圆(SDE)研究了空间异质性和影响因素，核密度估计(KDE)，空间自相关(SA)，和改进的旅游重力模型方法。研究结果表明:(1)高品位旅游景区整体空间分布特征在东北-西南方向,有了坚实的向心力，椭圆的重心在玉树市。(2)核密度分布的空间异质性显著,聚集在高原的东南半部，显示双核驱动和带状连接的模式。城市之间的分布具有分层异质性，西宁和拉萨这两个省会城市起着至关重要的作用。(3)高档旅游景点具有空间依赖性，具有明显的分散大、聚类小的特点，空间关联类型主要为负。(4)在自然环境基础上,从支持维度和内在维度验证了影响空间分布的显著单因素机制,旅游资源禀赋,社会经济发展,运输位置限制，和空间旅游联系。最后,文章为青藏高原高品位旅游景区的高质量发展提供了建议。
