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我国以滑坡、泥石流为主的山地灾害重点发生在西部地区,而西部的重灾区又在西南。有关资料显示,西南地区不同规模的泥石流、滑坡和崩塌灾害点约占西部地区的77%,占全国的47%;因灾造成的人员死亡约占西部死亡人数的53%,占全国的38%。20世纪80年代初期,由于灾害性天气引发各类山地灾害相互间复杂的灾害链,给西南地区、尤其是四川省造成了巨大人员伤亡和财产损失。1981年7月～9月,在暴雨和特大暴雨多次激发下,仅四川省暴发的泥石流就有1060多条,诱发滑坡60000余处,泥石流、滑坡灾害造成397人死亡、968人受伤,直接经济损失近3亿元。一、我国山地灾害已进人新的高发期
The main focus of mountainous landslides and landslides in China is in the western region, while the hardest hit in the west is in the southwest. Relevant data show that different sizes of landslides, landslides and landslides in Southwest China account for about 77% of the total in the western region, accounting for 47% of the national total; the death toll caused by the disaster accounts for about 53% of the death toll in the western region and 38% . In the early 1980s, as a result of the disastrous weather, the complicated chain of disasters caused various types of mountainous disasters, causing huge casualties and property losses to the southwestern region, especially to Sichuan Province. From July to September 1981, under the multiple torrential rains and torrential rainstorms, there were over 1060 debris flow outbreaks in Sichuan Province, which caused more than 60,000 landslides, causing 397 deaths and 968 injuries directly from landslides and landslides Economic losses of nearly 300 million yuan. First, China’s mountainous disasters have entered a new high-incidence period