• 责任者：Su Pengcheng (Key Laboratory of Mountain Hazards and Surface Process ; Chinese Academy of Sciences ; Chengdu 610041 ; China) ; Wei Fangqian
• 刊名：Journal of Mountain Science
• 出版年：2011
• 卷期：29(3)
• 关键词：泥石流 ; debris flows ; 四川 ; Sichuan Province
• 页码：p.337-347
• 图表：15 illus., 1 table, 13 refs.
• 分类号：1800
• 出版序号：1443
• issnNo：ISSN1008-2786
• isbnNo：CN51-1516/P

///Debris flow in the affected area has become more and more frequent and of bigger magnitude after the Wenchuan earthquake.  The upper Mianyuan River is one of the typical areas, where a number of debris flow occurred in the last three years.  In August, 2010, debris flows occurred in more than 20 gullies in the upstream of Mianyuan River, Mianzhu, Sichuan, at stimulus of regional rainstorms.  This study explores the cause of the events based on investigation of the material supplies caused by the earthquake.  Analysis shows that the rainstorm had an intensity of 37 mm/h and the cumulative rainfall reached 203.5 mm, and this was the triggering factor of the debris flows.  Soil samples indicate that the flow is viscous given material supplies in the area, such extreme events are expected to be encountered frequently in the near future.