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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (5): 125-130.doi: 10.11924/j.issn.1000-6850.casb15090087

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Characteristics of Extreme Heavy Precipitation Events and Their Impacts in Qinghai Province

冯晓莉 and 刘彩红   

  • Received:2015-09-22 Revised:2015-10-21 Accepted:2015-10-23 Online:2016-02-19 Published:2016-02-19

Abstract: The paper aims to explore the characteristics of extreme heavy precipitation event and impacts in Qinghai province under the background of global warming in order to provide the measures for flood control and mitigation. Based on the daily precipitation data of 40 meteorological stations during the flood season (from May to September) in the period of 1961-2014 in Qinghai province, the spatial distribution and temporal inhomogeneity features of extreme heavy precipitation events were analyzed. Furthermore, the possible impacts of extreme heavy precipitation events were discussed. The results showed that: the intensity and frequency of extreme heavy precipitation events presented an upward trend, and the ratio of extreme heavy precipitation events to the total precipitation increased during the flood season (from May to September) in the period of 1961-2014 in Qinghai Province. The peak of extreme heavy precipitation events came up from mid July to mid August in the mid-eastern part of the eastern agricultural region and southeastern part of Qinghai Province, that the risk of floods, landslides and debris flows disaster increased.