Agricultural Flood Risk Assessment in China at the Provincial Scale (PAP014346)
Dapeng Huang, Zhiguo Huo, Fei Mao, Yuohao E
Floods in a changing climate
Based on the annual crop area covered by flood disasters and annual crop area affected byflood disasters and annual sown area of crops from 1971 to 2010 in each province of China, agriculturalflood risk in China was assessed at the provincial scale using the soft histogram method. Firstly, theagriculture disasters were classified to five grades according to the percentage of crop area covered byflood disasters and crop area affected by flood disasters respectively. Then a comprehensive agriculturalflood index was developed based on the above two indicators using grey correlation analysis method.The probability of agricultural flood disasters of five grades was calculated using the soft histogrammethod. Finally, the agricultural flood risk of each province in China was assessed using the weightedsum of the probability of different disaster grade.