灾害的发生常常给经济社会带来沉重的打击。据有关调查,近30年来,灾害发生的频率、受灾人数和灾害的直接经济损失都在迅速增长。在我国,自然灾害造成的直接经济损失每年高达财政收入的1/6至1/4,严重地阻碍和制约了国家的经济发展。因此,推广灾害经济学知识对现实有极大的指导意义。 The occurrence of disasters often brings a heavy blow to the economy and society. According to the survey, the frequency of disasters, the number of people affected and the direct economic losses from disasters have all risen rapidly in the past 30 years. In our country, the direct economic losses caused by natural disasters are as high as 1/6 to 1/4 of the fiscal revenue every year, which seriously hinders and restricts the economic development of our country. Therefore, the promotion of knowledge of disaster economics has great guiding significance to the reality.