IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleAssessment on Debris-flow Hazard Based on the Volume of DebrisA Case Study in the Baishahe River,Dujiangyan
杨成林1,2; 陈宁生1; 邓明枫1,2
Source Publication水土保持研究
Contribution Rank1
Other AbstractAbundant debris deriving from the landslides and rock avalanches triggered by large earthquakes could significantly alter the characteristics and occurrence frequency of debris flows in the earthquake stricken areas.There is an urgent need for a quick and easy method to assess debris flow hazard to aid the recovery activities by the local residents.Conventional methods are mainly based on field investigations which are time consuming and resources demanding.In addition,as the loose materials are gradually taken away by debris flows,the debris flow occurrence frequency will change with time and more regular updates are needed with the debris flow hazard maps.Therefore,a GIS based system using satellite remote sensing and digital elevation model is proposed in this study.The debris-flow potential index based on the volume of unstable debris is used as the assessment criterion.The proposed method is applied to a case study in the river area affected by the Wenchuan Earthquake 2008.It has been found that the resulted hazard map corresponded well with the observed debris hazards.The validity of the proposed method is depended on the digital data and need regularly update from the latest satellite images with more up-to-date debris accumulation information.
Keyword白沙河 泥石流 形成条件 物源数量
Indexed ByCSCD
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author杨成林
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
杨成林,陈宁生,邓明枫. 基于物源数量的泥石流危险性评估以都江堰白沙河为例[J]. 水土保持研究,2011,7(3):25-30.
APA 杨成林,陈宁生,&邓明枫.(2011).基于物源数量的泥石流危险性评估以都江堰白沙河为例.水土保持研究,7(3),25-30.
MLA 杨成林,et al."基于物源数量的泥石流危险性评估以都江堰白沙河为例".水土保持研究 7.3(2011):25-30.
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