Mapping of Erosion Using USLE, GIS and Remote Sensing in Wadi El Hachem Watershed (Northern Algeria): Case Study

Algeria is one of the countries affected by water erosion. This phenomenon removes the top layer and leads to a degraded soil. This study includes an estimation of water erosion in Wadi El Hachem watershed using the Universal Soil Loss Equation (USLE) model combined with geographical information sys...

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Bibliographic Details
Published in:Journal of the Indian Society of Remote Sensing 2022-03, Vol.50 (3), p.569-581
Main Authors: Saoud, Mohammed, Meddi, Mohamed
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Erosion rates
Geographic information systems
Geologic depressions
Mountains
Rainfall
Remote sensing
Remote Sensing/Photogrammetry
Research Article
Soil conservation
Soil degradation
Soil erosion
Soil water
Wadis
Water conservation
Water erosion
Watersheds
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Summary:Algeria is one of the countries affected by water erosion. This phenomenon removes the top layer and leads to a degraded soil. This study includes an estimation of water erosion in Wadi El Hachem watershed using the Universal Soil Loss Equation (USLE) model combined with geographical information system and remote sensing techniques. The average erosion rate ( A ) in the watershed is estimated at 19.4 (t.ha −1 .year −1 ), i.e., a total loss of 426,800 (t.year −1 ). The areas with severe and extremely severe erosion are predominantly located along the different Wadis of the watershed. While very slight and slight erosion are taking place in the depressions and flat lands and in the upstream boundaries of the watershed where mountains are permanently covered by vegetation. The correlation between ( A ) and the factors of topography (LS), rainfall erosivity ( R ) and cover management ( C ) is highly significant ( p  
ISSN:0255-660X
0974-3006
DOI:10.1007/s12524-021-01481-9