摘要
岷江流域上游映秀镇银杏乡境内的兴文坪、磨子沟和野牛沟是3条紧邻的泥石流沟,其地质和降雨条件都相类似,但其中磨子沟的暴发频率要显著高于其余2条沟。本文通过对这3条泥石流沟地貌发育阶段以及地形条件的对比分析,证明了控制其泥石流暴发的关键因素是受地形条件的影响。从而为在某一区域内地质和降雨条件都近似的情况下,对地形条件最有利的泥石流沟进行重点防治和预警预报提供依据,并有效的减少突发性灾害所带来的损失。
Xing Wenping 、Mozi gully and Yeniu gully are three contiguous debris flow gullies in Yinxing Country on Yingxiu Town on upper basin of Minjiang rive.Their geological and rainfall conditions are semblable,but outbreak frequency of Mozi gully is the highest.This article which is through to comparative analysis of geomorphic development stages and topography conditions on these three gullies proves that the key factor of control the debris flow is topography conditions.Thus in the approximate condition region that the semblable geological and rainfall conditions,it can provides the basis for focusing on prevention and early warning to gully of the best topography conditions and effective reduction of sudden disaster losses.
出处
《中国地质灾害与防治学报》
CSCD
2013年第2期16-20,25,共6页
The Chinese Journal of Geological Hazard and Control
基金
地质灾害防治与地质环境保护国家重点实验室自主研究课题(SKLGP2011Z013)
关键词
地形条件
泥石流
岷江上游
地貌发育阶段
暴发频
topography conditions
debris flow
upstream of Minjiang River
geomorphic development stages
outbreak frequency
