Modeling Soil Erosion Using RUSLE and GIS – A Case Study of Korifla Sub-Watershed (Central Morocco)
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Laboratory of Geosciences, Department of Geology, Faculty of Sciences, University Ibn Tofail, Av. de L'Université, Kénitra, BP 133, Morocco |
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Laboratory of Natural Resources and Sustainable Development, Department of Geology, Faculty of Sciences, University Ibn Tofail, Av. de L'Université, Kénitra, BP 133, Morocco |
CORRESPONDING AUTHOR
Fatimazahra Eddefli
Laboratory of Geosciences, Department of Geology, Faculty of Sciences , University Ibn Tofail, Av. de L'Université, Kénitra, BP 133, Morocco
Ecol. Eng. Environ. Technol. 2023; 4
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ABSTRACT
Soil loss is a problem that contributes to land degradation in many countries and Morocco is no exception. Our study focuses on water erosion in Korifla, a sub-basin of the Bouregreg watershed in northern Morocco.
The objective is to quantify erosion using the RUSLE method which is based on five factors: Runoff erosivity, soil erodibility, cover factor, topography and conservation practices .These are processed by remote sensing and a geographic information system .The soil loss map shows that on an area of 1838km², erosion is estimated to be between 0,00 t/ha/year and 27,61 t/ha/year.
The cumulative effect of the factors R, K, LS, C, and P are both the origin of this erosion and its spatial distribution.