On 12 May 2008, a devastating mega-earthquake of magnitude 8.0 struck the Wenchuan area, northwestern Sichuan province, China. Wenchuan earthquake inevitably impaired the stability of mountains in the course of massive reverse-thrust strike-slip motion in the fault zone. Geohazards were triggered with the types of rock fall, rock avalanches, landslides, debris flows,and earthquake-lakes. In this paper, the types and characteristics of dammed lakes induced by Wenchuan earthquake are analized. The dammed lakes would seriously influence the river sediment transportation, fluvial processes and ecoenvironment. Consequently , the guidline and effective approaches for river restoration of dammed lake are susggested, so as to mitigate hazard loss and make the rivers influenced by the dammed lake serve us better.
