福建省洪涝灾害经济损失趋势分析

Trend Analysis of Economic Loss in Flood Disaster in Fujian Province

采用灾损度DLD和环境不稳定度EI两个要素。构建了灾害经济损失指数DELI（灾损度指数）指标对灾害经济损失进行评估，并应用它对福建省洪涝灾害经济损失趋势变化进行了分析．研究表明：利用灾损度指数对灾害经济损失评估的方法是可行的，不受灾害发生的时间和地点限制，可比性强。资料信息源多。计算方便。适用范围广；福建省洪涝灾害灾损度指数呈波动上升趋势，反映出福建洪涝灾情加重、灾害本身损失加大与福建省环境不稳定度加大有关。和实际情况相符．

The paper built up a set of disaster economic loss index（ DELI）, which was consisted of disaster loss degree（DLD ） and environmental instability（EI）, and then made an analysis on the trend of economic loss in typhoon disaster in Fujian province. The result shows that, it is reasonable to adopt DELI for economic loss assessment, which is not limited by temporal and special factors and easy for comparison. By DELI, it is more convenient for data acquisition and calculation, which has more popular application. DELI of flood disaster in Fujian province increases with a fluctuation, which indicates that flood disaster effects became more severe, have been influenced by both the hazard itself and environmental instability in Fujian province.