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1 2025

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Morphodynamic analysis and identification of triggering mechanisms of flow-like landslides in the Trougoût torrential watershed

Labriki Allal, Bouchatta Yasmina, Labriki Karima, Zriouel Fouad, El Hilali Mohamed, Chafiq Tarik, Chakiri Said, Ghazi Abdelkhalek

Ecological Engineering & Environmental Technology

2025

Vol. 26, iss. 3

361--377

Flow-like landslides represent a major natural hazard, particularly in mountainous environments where steep slopes and geodynamic processes increase risks. These gravitational phenomena can lead to significant human losses and substantial material damage, as demonstrated by the tragic event that occurred in 2019 near Asni, south of Marrakech. The Rif Mountain range in northern Morocco is characterized by highly rugged terrain resulting from complex tectonic processes, making the region particularly vulnerable to slope instability. This study focuses on the Trougoût region, located on the Mediterranean slope in the northwest of Driouch Province, and aims to identify the triggering mechanisms of flow-like landslides typical of the Trougoût torrential basin. The analysis is based on the visual interpretation of high-resolution images, combined with an assessment of geological, geotechnical, and hydrological factors, while integrating detailed morphodynamic mapping to better understand the dynamics of relief deformation. The results show that this region is particularly prone to slope instability due to the combined effects of rainfall, the mechanical behavior of rocks, and active tectonics. The morphodynamic analysis of landslides improves the understanding of complex gravitational phenomena in this region and proposes tailored strategies for geological risk management, ensuring the safety of infrastructure and local populations.