Natural disasters are considered hostile to human beings killing thousands and leaving millions of casualties and homeless people annually. There are 43 kinds of natural disasters diagnosed in global level as well as 33 items in Iran. Mass movement is a destructive phenomenon in which man as an accelerating factor plays an inevitable role in rate and velocity of degradation. Mass movement is influenced by different factors such as vegetation cover, life form, and erosion which may be altered by natural factors and human activities.
This study measured the effects of some watershed management projects on the vegetation cover, life form, and erosion on the site across Darkesh watershed located in Taleghan, Iran. The results indicated that watershed management projects had positive effects on vegetation cover, life form, erosion, and finally, on controlling of mass movement.