中国堵江滑坡的分布、成因和基本特征研究

摘要

滑坡堵江在中国山区广泛发育,全部或不完全堵塞江河,形成堰塞湖.作者近年来的研究工作主要在堵江滑坡的识别和调查上,目前已识别堵江滑坡160余个.在这些资料的基础上,研究了中国堵江滑坡的诱发因素、不同类型堵江滑坡发育的背景条件、天然堆石坝和堰塞湖的基本特征.%Landslide dams are very common in China. They are blocking or ever blocked the rivers and streams completely or partly, and form natural lakes. The studies to date have concentrated mainly on the identification of both the existing and former landslide dams and natural lakes in China. Now more than 160 damming landslides in China are recognized. On the basis of these cases, the distribution of damming landslides is described, together with specific examples. Their hazards as a result of the landslide itself, or the burst of the natural dam and the causes triggering damming of rivers are presented. The characteristics of the lakes and dams are also discussed in this paper.