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《Journal of Glaciology and Geocryology》 2003-02
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Preliminary Approach on the Floods and Their Calamity Changing Tendency in Xinjiang Region

WU Su fen, ZHANG Guo wei(Xinjiang Hydrology and Water Resources Bureau, rümqi Xinjiang 83000 0, China)  
Floods and their calamity in Xinjiang Region may apparently reflect the climatic shift from warm dry to warm humid in Northwest China. Therefore, frequencies of exceed standard flood and floods with possibility of 5% and 2% are worked out from statistics of annual maximum floods of 29 rivers in Xinjiang Regions. The changing tendency and regional distribution of the floods was analyzed. It is found that the flood amount and frequency have been increasing since 1987. By analyzing the frequency of calamity flood and comparing their calamity losses, it is believed that calamity floods, especially rainstorm floods and catastrophic floods, have been increasing since the 1990s. The loss due to calamity foods in 1987-2000 increased 30 times as compared with that in 1950-1986, causing serious damage to the national economic construction, as well as to the life and properties in Xinjiang Region.
【Fund】: 中国科学院知识创新工程重大项目 (KZCX1 10 0 6;KZCX2 3 0 1) ;; 国家自然科学基金重大项目 (90 2 0 2 0 13 )资助
【CateGory Index】: P426.616
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