关键词: 最小累积阻力模型, 灾害危险性指数, 游览路线, 选线优化

Abstract: The frequent occurrence of disasters seriously threatens the smooth route flow and visitor’s safety in scenic areas. The integration of hazard risk assessment into the route selection of scenic areas is important for the formulation of disaster mitigation and prevention strategies and the optimization of scenic area development planning. Based on the minimum cumulative resistance model, we constructed a disaster risk resistance surface under the comprehensive evaluation of geological disasters, flood disasters, forest fires, and biological disasters. With sightseeing spots and landscape resource points as sources, GIS was used to identify the optimization results of the sightseeing route of Leshan Giant Buddha Scenic Area under the influence of disasters. The results showed that Leshan Giant Buddha Scenic Area was mainly affected by geological and flood disasters. The disaster hazards were distributed in a circular pattern, with high disaster hazards in central area surrounded by low disaster hazards, high disaster hazards in north side and low disaster hazards in southeast side. Waterfront hazards were higher than that in mountainous areas, and the overall hazard was high. There were 51 source points being identified based on Ctrip.com tourism data and scenic source distribution of scenic area overall planning. We obtained 77 scenic area tour routes through minimum cumulative resistance calculation, with a total length of 34.322 km. Combined with heritage protection and actual utilization needs, the route selection results were optimized, resulting in 63 routes after optimization.

Key words: minimum cumulative resistance model, disaster risk index, tour route, route selection optimization.