基于2008、2018年A级景点数据,采用GIS空间分析方法,从景点时空分布集中性、移动性、可达性三方面对甘肃省旅游空间结构变化进行探究,并以“点—轴”理论为基础提出优化建议。结果表明：（1） 甘肃省A级景点空间结构类型为聚集-随机型,景点分布高密度区主要集中在酒—嘉、兰州、天水等地,在旅游板块上呈现出“点强、面弱”的特点。（2） 景点可达性时间成本变化明显,1 h等时圈增率为134%,2 h等时圈增率为41%,交通情况改善明显,路网“线分散”的特点趋于弱化。（3） 以“点—轴”理论为基础,因地制宜,联系实际,提出三大旅游板块各自的增长级和发展轴线,以期推进甘肃省由“景点旅游”向“全域旅游”发展转变。

Gansu Province is a popular tourist destination in China because of its rich and diverse tourism resources. This paper presents relevant literature and policies for “all-for-one” tourism in accordance with the concept of “building and integrating development in different regions”. The tourism sector of Gansu Province was divided into three parts, and each part represented one research unit. Data were collected from Grade A tourist attractions and basic road network data from Gansu Province in 2008 and 2018. The nearest neighbor distance index, nuclear density, standard deviational ellipse, time-cost grid algorithms, and ArcGIS were used to analyze the spatial distribution of Grade A scenic spots, the mobility of the center of mass of the scenic spots, and the accessibility of the scenic spots. This study explored the spatial structure of tourism in Gansu Province from 2008 to 2018 and concludes that the basic characteristics of spatial change in Gansu Province is a “strong point, weak in face and scattered on surface”. The results of this research show that the spatial structure of Grade A scenic spots in Gansu Province are random clusters, and the highest density of scenic spots are concentrated in Jiuquan, Jiayuguan, Lanzhou, and Tianshui Cities. The spatial structures observed were relatively stable and continuous. The accessible time-cost analysis of scenic spots changed over the 10-year period showing that (1) the rate of the 1-h isochron increased 134%, and (2) the rate of the 2-h isochron increased 41%. The time-cost relationship of accessibility to scenic spots showed that areas with better access were distributed around traffic trunk lines and towns, while spots with poor accessibility mostly occurred in rugged terrain along the provincial boundary. From a regional perspective combined with “pole-axis system theory”, this paper proposes specific measures for the integration of resources within a tourism plate and the interactions between tourism plates as a function of local conditions, the actual situation, and the specific measures of the integration of resources within the tourism plate and the interaction between the tourism plates. The three tourism plates were: (1) a construction plate featuring Dunhuang culture and ecological features in the Hexi Corridor, (2) the Yellow River urban industrial zone focused on Yellow River culture, and (3) the China Cultural Heritage and Innovation Zone in southeast Gansu Province highlighting ancestral culture. These three plates were designed to promote the transformation of Gansu Province from “tourist-attraction tourism” to “all-for-one” tourism, optimize the spatial layout of tourism in the province, give full play to the regional characteristics of the plate, coordinate and develop a sustainable model for tourism in Gansu Province, and identify key landmarks and points of interest to market and thus increase domestic tourism in this well-known destination in China.