汶川震区山洪泥石流灾害危险性评估

doi:10.3969/j.issn.1001-5485.2015.03.016

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raybet体育在线院报 ›› 2015, Vol. 32 ›› Issue (3) : 77-83. DOI: 10.3969/j.issn.1001-5485.2015.03.016

水土保持与环境生态研究专辑

汶川震区山洪泥石流灾害危险性评估

杜俊¹,肖翔²,蔡道明¹,许文涛¹

作者信息 +

Hazard Assessment of Mountain Torrent Debris Flow in Wenchuan Seismic Area

DU Jun¹,XIAO Xiang²,CAI Dao-ming¹,XU Wen-tao¹

Author information +

文章历史 +

摘要

将诱发山洪灾害的主要因子,分为作用相对稳定的稳定因子和震前震后作用变化较大的复杂因子2类,分别刻画图层,并综合运用逐步回归、AHP等主客观方法分别定量估算它们对震区灾害格局的影响程度,最后通过ArcGIS的叠加分析功能得到震区山洪泥石流灾害危险性分布图。通过与已有近似成果的比较,显示出研究所持评估体系良好的适用性。研究结果可为震区山洪泥石流灾害防治工作提供参考。

Abstract

The main factors inducing mountain torrent were classified into two types: stable factors which have relative stable role in the mountain torrent development, and complex factors which vary greatly before and after the earthquake. The distribution patterns of different factors were mapped and the impact degree of each factor on disaster pattern was quantified by using stepwise regression and AHP. Finally, the diagram of risk distribution of mountain torrent debris flow in the seismic area was obtained by using overlay analysis function of ArcGIS. The assessment system of this study is demonstrated to be well applicable compared with previous similar research results. It could be intuitional reference for the prevention of mountain torrent debris flows in seismic area.

导出引用

杜俊,肖翔,许文涛. 汶川震区山洪泥石流灾害危险性评估[J]. raybet体育在线院报. 2015, 32(3): 77-83 https://doi.org/10.3969/j.issn.1001-5485.2015.03.016

DU Jun,XIAO Xiang,CAI Dao-ming,XU Wen-tao. Hazard Assessment of Mountain Torrent Debris Flow in Wenchuan Seismic Area[J]. Journal of Changjiang River Scientific Research Institute. 2015, 32(3): 77-83 https://doi.org/10.3969/j.issn.1001-5485.2015.03.016

中图分类号： P954

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