Sediment mobilization study on Cretaceous, Tertiary and Quaternary lithological formations of an external Rif catchment, Morocco

Abdessalam Ouallali*, Habiba Aassoumi, Mohamed Moukhchane, Abdelhak Moumou, Mhammad Houssni, Velibor Spalevic, Saskia Keesstra

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

23 Citations (Scopus)

Abstract

Soil erosion is a serious ecological problem in Mediterranean areas. The IntErO model based on the erosion potential method (EPM) and the modified universal soil loss equation (MUSLE) have been used to assess soil erosion in several basins. This study aimed to assess and evaluate the effectiveness of these methods for evaluating sediment production and deposition rates in the Arbaa Ayacha basin, Morocco, in order to estimate sediment fluxes on a catchment scale. Our findings suggest that the basin is strongly exposed to erosion owing to geological formations, slope and land use, with average losses of about 28.4 t ha−1 year−1. Erosion processes were evaluated at the erosion production (Eocene marly formations) and sedimentation zones (Quaternary terraces). The results of these models may be useful to address soil and water management in this region and to assess the impact of a river dam that will be built in the basin.

Original languageEnglish
Pages (from-to)1568-1582
JournalHydrological Sciences Journal
Volume65
Issue number9
Early online date14 May 2020
DOIs
Publication statusPublished - Sept 2020

Keywords

  • erosion potential method
  • IntErO
  • modified universal soil loss equation
  • Morocco
  • soil erosion

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