article · International Journal of Ecosystems and Ecology Science (IJEES)
Water erosion is a major geomorphological process that contributes to soil degradation, impacting not only water quality but also ecosystems and socio-economic structures.In the current study, we conduct a study on the Erosion Yield Model of sediment production of the Audour watershed (towards a sustainable watershed) in northwestern Morocco using the Revised Universal Soil Loss Equation (RUSLE) and Sediment Delivery Ratio (SDR), as well as a GIS-based Geographic Information System to analyze land cover and sediment yield in this study.According to our analysis, the sediment delivery ratio (SDR) ranges from 0.135 to 0.307, with an average sediment delivery ratio of 0.221, which indicates that merely 22.1% of eroded sediments are transported downstream while 77.9% remain stored upstream before being redistributed across hillslopes and lower areas.The total sediment yield ranges from 0 to 207.17 t/ha/yr (average ~1.17 t/ha/yr), and we estimate the overall system total to be around 416,331.55 t/yr.Besides, zones that feature steep slopes and vulnerable soils provide higher sediment outputs, confirming the latter two as major erosion hot spots.This data reinforces the spatial diversity of sediment connectivity and the potential impacts of landscape topography, vegetation coverage, and soil properties on erosion capacity and is crucial for both informing mitigation actions and promoting sustainable watershed management.
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DOI: 10.31407/ijees16.144
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