STUDY ON DISTRIBUTION CHARACTERISTICS AND DYNAMIC EVOLUTION OF MOUNTAIN HAZARDS IN HENGDUAN MOUNTAINS AREA

Hengduan Mountains area has various types of landforms, fragile and complex geological environment, changeable climate and frequent seismic activities, which makes this one of the regions with the largest number and the most serious harm of mountain hazards such as collapse, landslides, debris flow, and so on. In this paper, collapse, landslides, debris flow hazards in Hengduan Mountains area are taken as research objects, based on the environmental background, field investigation and data collection in the study area, using GIS spatial analysis and mathematical statistical analysis, the correlation between mountain hazards and environmental background conditions is analyzed, and the regional distribution characteristics and dynamic evolution of mountain hazards in Hengduan Mountains area are discussed.