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Assessment Of Soil Erosion By Rusle Model In The Mellegue Watershed, Northeast Of Algeria

Author

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  • Kamel Khanchoul

    (Department of Geology, Laboratory of Soils and Sustainable Development, Badji Mokhtar University-Annaba, P.O.Box 12, Annaba, Algeria)

  • Kaouther Selmi

    (Department of Geology, Laboratory of Soils and Sustainable Development, Badji Mokhtar University-Annaba, P.O.Box 12, Annaba, Algeria)

  • Kaddour Benmarce

    (Department of Earth Sciences, University of Ferhat Abbas, Setif 1, Campus El Bez, Setif, Algeria)

Abstract

In Algeria, soil erosion has experienced a spectacular extension, it is therefore imperative to assess the effects of this phenomenon. The purpose of this study is to assess soil loss rate using a GIS/USLE approach at the Mellegue watershed, northeast of Algeria. Geographic Information System techniques have been adopted to process data obtained at the study watershed, of reasonable spatial mapping, for the application of the RUSLE model. The model is a multiplication of the five erosion factors, namely rainfall erosivity, soil erodibility, slope and length of slope, plant cover and anti-erosion practices. Each of these factors has been expressed as a thematic map. The resulting soil loss map, with mean erosion rate of 20.40 T/ha/year, shows very low erosion (≤ 7 T/ha/year) which covers 64.60% of the total area of the basin, and very high erosion (> 60 T/ha/year) which does not exceed 4.80% of the basin area. The results indicate that Chabro and downstream Mellegue sub-watersheds face the greatest risk of soil erosion compared to Meskiana sub-basin, with contributions of 14.20 % and 12.90 % of their basin areas respectively. This is mainly due to natural factors and anthropogenic activities without appropriate conservation practices of agricultural land.

Suggested Citation

  • Kamel Khanchoul & Kaouther Selmi & Kaddour Benmarce, 2020. "Assessment Of Soil Erosion By Rusle Model In The Mellegue Watershed, Northeast Of Algeria," Environment & Ecosystem Science (EES), Zibeline International Publishing, vol. 4(1), pages 15-22, February.
    • Handle: RePEc:zib:zbnees:v:4:y:2020:i:1:p:15-22
    DOI: 10.26480/ees.01.2020.15.22
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    References listed on IDEAS

    as
    1. Kamel Khanchou & Sana Boubehziz, 2019. "Spatial Variability Of Soil Erodibility At El Hammam Catchment, Northeast Of Algeria," Environment & Ecosystem Science (EES), Zibeline International Publishing, vol. 3(1), pages 17-25, January.
    2. Katherine Tully & Clare Sullivan & Ray Weil & Pedro Sanchez, 2015. "The State of Soil Degradation in Sub-Saharan Africa: Baselines, Trajectories, and Solutions," Sustainability, MDPI, vol. 7(6), pages 1-30, May.
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    Cited by:

    1. Khanchoul K. & Balla F. & Othmani O., 2020. "Assessment Of Soil Erosion By RUSLE Model Using GIS: A Case Study Of Chemorah Basin, Algeria," Malaysian Journal of Geosciences (MJG), Zibeline International Publishing, vol. 4(2), pages 70-78, May.

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