Land use and climate change effects on soil erosion in a semi-arid mountainous watershed (High Atlas, Morocco)

摘要

The objective of this study was to simulate the evolution of soil erosion in a semi-arid mountainous watershed (225 km(2), High Atlas Mountains, Morocco) under different scenarios of climate and land use change to the end of 21st century. Erosion plots monitored over four years showed spatially contrasted results. Most of the soils produced from 0.015 to 2.5 t ha(-1) y(-1), whereas badlands produced 350 t ha(-1) y(-1). The average sediment yield measured at the outlet during the same period was approximately 4 t ha(-1) y(-1).