Understanding the Factors of Sedimentation: A Comparison of Two Sub-basins in the Siwalik Hills of Nepal

Abstract

"There has been considerable debate in recent years over the cause of accelerated sedimentation and erosion from Himalayan watersheds. Sedimentation is considered one of the key processes related to resource sustainability in Nepal. While there is growing evidence that much of the sediment movement in the Himalayas is due to natural forces, human pressures on the natural resources such as forests and pasture areas do contribute to the problem. In watershed areas, the land-use actions taken by uplanders may have dramatic negative influences on the condition of lowland areas. This upland-lowland dilemma generates policy debates on how to best resolve this externality problem."