据有关部门统计,我国每年因自然灾害、事故和社会安全事件等各类灾难造成上百万人伤亡,直接经济损失6500亿元左右,占我国GDP的6%。随着城市化进程的不断加快,与以往不同的是,除了频繁发生的传统灾害外,新发灾害种类明显增多,而且极易引发次生或衍生灾害。同时,人们对灾害的忍耐 According to statistics from relevant departments, millions of casualties have been caused to China every year by natural disasters, accidents and social security incidents, with a direct economic loss of 650 billion yuan, accounting for 6% of China’s GDP. With the accelerating process of urbanization, different from the past, in addition to the frequent occurrence of traditional disasters, the number of newly-emerged disasters has obviously increased, and they can easily lead to secondary or derivative disasters. At the same time, people endure disasters