据著名灾害医学专家S.W.A.Gunn对于灾害所作的定义为:“人类与他们居住的环境遭到巨大的生态学破坏,这是一种突如其来的严重事故(也有缓慢发生的,如旱灾),它的程度达到受打击的集体需要超乎寻常的力量来克服它,常需外界,甚至国际援助。”灾害一般可分两大类:自然的和人为的。自然灾害如地震、洪水、台风、 According to the famous disaster medical expert SWAGunn, the definition of disaster is: “The human and the environment in which they live have suffered tremendous ecological damage. This is a sudden serious accident (also occurs slowly, such as drought), it’s To the extent that the hit collective needs exceptional power to overcome it, it often takes the outside world or even international aid. Disasters generally fall into two categories: natural and man-made. Natural disasters such as earthquakes, floods, typhoons,