洪水灾害经济损失的准确计量，是进一步作出灾害救援决策和减灾投资的主要依据，因此，能否及时、合理和科学地评估灾害损失，成为减灾防灾过程中的重要技术环节；但由于洪水灾害在发生过程中的复杂性和影响环境的多变性，使得灾害经济损失计量尤其是即时的评估成为目前学术界一大难题。根据受淹区域行业经济产值和洪水特征资料进行估算损失，具有方法简单、应用灵活、可操作性强的优点。%The accurate measurement of flood economic loss is the main basement for making further disaster relief and its investment decisions.So whether can we evaluate disaster damage timely,reasonable and scientific become the important technical aspects in the disaster prevention and reduction processes;However,due to the complexity that floods take place in the process and variability of the environmental impact,the measurement of e-conomic losses,especially immediate disaster assessment academia become a major problem.According to the floo-ded area of economic output and flood characteristics of the industry data,we can estimate the loss with simple, flexible,workable advantages.
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