自然灾害是对社会经济发展和人类生活的严重威胁.为了抵御自然灾害的侵袭,增强防灾、抗灾、救灾的能力,就要研究灾害经济的客观规律,而这种规律的研究又必须基于定量实证分析,通过一套科学的描述自然灾害发生的规模与强度,评估灾害经济损失,防灾、救灾以及预测预警的投入产出的统计指标体系,来客观、准确地指出灾害程度,以制订相应的对策. Natural disasters are a serious threat to social and economic development and human life.In order to resist the invasion of natural disasters and enhance the ability of disaster prevention, disaster relief and disaster relief, it is necessary to study the objective law of disaster economy, and the study of such laws must be based on quantitative Empirical analysis shows objectively and accurately the degree of disasters by formulating a set of scientific statistical index system which describes the scale and intensity of natural disasters and evaluates the economic losses of disasters, disaster prevention and relief and the input and output of forecasting and warning. Countermeasures.