长江科学院院报 ›› 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 • 上一篇    下一篇

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   

  1. 1.长江科学院 水土保持研究所,武汉 430010;
    2.长江水利委员会 水土保持局,武汉 430010
  • 收稿日期:2014-12-30 出版日期:2015-03-01 发布日期:2015-03-06
  • 作者简介:杜 俊(1983-),男,安徽马鞍山人,高级工程师,博士,主要从事水沙灾害防治工作,(电话)027-82926137(电子信箱)dxjx2006@126.com。
  • 基金资助:

    国家“十二五”科技支撑计划项目(2012BAK10B04);水利部公益性行业科研专项(201301058,201301059);中央级公益性科研院所基本科研业务费资助项目(CKSF2015080/TB)

Hazard Assessment of Mountain Torrent Debris Flow in Wenchuan Seismic Area

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

  1. 1.Soil and Water Conservation Department, Yangtze River Scientific Research Institute, Wuhan 430010,China;
    2.Bureau of Water and Soil Conservation, Changjiang Water Resources Commission, Wuhan 430010,China
  • Received:2014-12-30 Online:2015-03-01 Published:2015-03-06

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。

关键词: 山洪泥石流, 危险性评估, 汶川震区, 风险评估理论, 灾害

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.

Key words: mountain torrent-debris flow, hazard assessment, Wenchuan seismic area, risk assessment theory, disasters

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