中文摘要：

中国是一个自然灾害尤其是洪涝灾害发生较频繁的国家,洪水灾害的风险分析与评估是抗洪救灾中的一个重要组成部分,洪灾风险分析的时效性、科学性对于防汛抗洪、抢险救灾具有重要的意义。本文针对流域洪水灾害的特点与其复杂的风险分析过程,考虑影响流域洪水灾害的因子,结合层次分析方法（AHP）,以COM组件的架构思想为基础,采用ArcObjects语言的相关接口和方法,构建了流域洪水灾害风险分析模型,将各因子对洪水灾害的危险性和风险的影响进行了量化,分别得出洪水灾害风险性分布图和洪水灾害易损性分布情况。通过对洞庭湖试验区域的模型检验,结果表明,所构造的模型简单易操作,能够较好地对区域洪水灾害进行风险分析。

英文摘要：

China often suffers from different natural disasters, especially flood and waterlogging, so, risk analysis and assessment of flood disaster is an important part of flood control and disaster mitigation. As current risk analysis process of flood disaster are cumbersome generally, in this paper we proposed a method to develop a flood/waterlogging disaster risk model. This method considers the characteristics of watershed flood disaster, chooses some important influence factors, and adopts the ArcObjects development language, AHP method to construct a flood disaster risk model based on the COM component framework. With this risk analysis model, the effects of each factor to flood disaster are quantified, map of flood disaster distribution and condition of flood disaster vulnerability distribution are achieved respectively. In the end, we take Dongting Lake region as a case studying area to test the flood disaster risk model. The results show that the model is easy to be operated, and has a better effect for regional flood disaster risk analysis.