论文部分内容阅读
一、灾害的严重性:具有50多亿人口的人类,在地球上生存、繁衍,已取得长足的发展.但有史以来,地球上发生的自然灾害也给人类带来重大的伤亡和灾难.甚至在局部地区有毁灭性的灾难降临人间.据统计,在近20年中、诸如地震、洪水、滑坡、自然大火等自然灾害,已在世界范围内造成280万人死亡,受影响的人口多达8亿2千万人.据不完全估计,直接经济损失约近1000亿美元.据美国1980年编制的《1900—1979
First, the severity of the disaster: Humanity with more than 5 billion people survives and reproduces on the earth and has made great progress. However, ever since the occurrence of natural disasters on the earth, it has also caused major human casualties and disasters. Even In some areas, there are devastating disasters that have come to the world. According to statistics, in the past 20 years, natural disasters such as earthquakes, floods, landslides, and natural fires have caused 2.8 million deaths worldwide, affecting as many people as possible. 820 million people. According to incomplete estimates, the direct economic loss is nearly 100 billion US dollars. According to the United States in 1980 compiled "1900-1979