山洪灾害是当前我国自然灾害中造成人员伤亡和经济损失的主要灾种之一,影响范围广、损失大,影响人口约2.8亿人,且山区强降雨历时短、成灾快,已是汛期的凶猛“杀手”。受超强厄尔尼诺事件影响,2016年3月以来,我国多地频繁出现强降雨过程,异常的汛情更加大了山洪灾害防御难度。灾害无法杜绝,但可防御。将“防”的功课做在前面,在灾害来临时迅速应对,让“灾害”无法向 Mountain torrent disaster is one of the major natural disaster-caused casualties and economic losses in our country, affecting a wide range of areas with large losses and affecting about 280 million people. The heavy rains in the mountains lasted for a short time and caused rapid disasters, which were already flood season Ferocious “killer ”. Affected by the super-El Niño event, since March 2016, there have been frequent heavy rainfalls in many places in our country, and the unusual floods have made it more difficult to prevent floods and floods. Disasters can not be stopped, but defensive. Doing “homework” in front of “disaster prevention” will promptly respond to disasters so that “disaster” can not be directed