当前位置: 首页 > 文章 > 极端强降水变化与泥石流侵蚀输沙特征相关性分析——以长江上游小江流域蒋家沟泥石流为例 水土保持通报 2009,29 (3) 165-169
Position: Home > Articles > Relationship Between Eroded Sediment Transport of Debris Flows and Extreme Rainfall——A Case Study of Debris Flow at Jiangjia Ravine of the Xiaojiang River Basin in the Upper Reach of Yangtze River Bulletin of Soil and Water Conservation 2009,29 (3) 165-169

极端强降水变化与泥石流侵蚀输沙特征相关性分析——以长江上游小江流域蒋家沟泥石流为例

作  者:
王裕宜;詹钱登;田冰;洪勇;邹仁元
单  位:
台湾成功大学水利与海洋工程学系;中国科学院水利部成都山地灾害与环境研究所
关键词:
极端强降水;泥石流;侵蚀输沙
摘  要:
根据长江上游小江流域蒋家沟泥石流1965—2007年的观测资料与会泽气象站1970—2005年的日降水资料,详细分析了泥石流侵蚀输沙特征与极端强降水变化的相关性。分析结果表明,1990年以来,夏季极端强降水和夏季降水量以显著增加为主要特点,M—K检验表现为显著增加趋势(99%的置信度),1990—2005年的夏季平均极端强降水量比1970—1989年的夏季平均极端强降水量增加57.56 mm。该流域这个特点与蒋家沟泥石流在90年代出现的侵蚀输沙量的大量增加有相当紧密关系。
译  名:
Relationship Between Eroded Sediment Transport of Debris Flows and Extreme Rainfall——A Case Study of Debris Flow at Jiangjia Ravine of the Xiaojiang River Basin in the Upper Reach of Yangtze River
作  者:
WANG Yu-yi 1,2,ZHAN Qian-deng 3,TIAN Bing 4,HONG Yong 1,2,ZOU Ren-yuang2(1.Key Laboratory of Mountain Hazards and Surface Processes,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;2.Chengdu Institute of Mountain Hazards & Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China;3.Dept.of Hydraulics & Ocean Engineering,Cheng Kung University,Tai'nan,Taiwan 70101,China;4.College of Resources & Environment Science,Hebei Normal University,Shijiazhuang,Hebei 050061,China)
关键词:
extreme rainfall;debris flow;eroded sediment transport
摘  要:
The correlation of extreme rainfall to eroded sediment transport is analyzed in detail based on the data of debris flows observed from 1965 to 2007 in Jiangjia Ravine of Xiaojiang River basin and the daily rainfall data collected from 1970 to 2005 in Huize station in the upper reaches of Yangtze River.Results from the analysis indicate that extreme rainfall events and rainfall amount in summer have a notably increased trend in the region since 1990s and M—K test presents a notably increased trend(confidence interval of 95%).The character has a close relation with the tendency of increased sediment transport in debris flows in the Jiangjia Ravine.

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