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Geomatics-Based Analysis of Sand Dune Encroachment Dynamics in the Tafilalet Region, Morocco
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Author(s): Rachid Ouachoua (Ministry of Energy Transition and Sustainable Development, Morocco), Jamal Al Karkouri (Faculty of Human and Social Sciences, Ibn Tofail University, Morocco)and Hamid Benssi (Faculty of Human and Social Sciences, Ibn Tofail University, Morocco)
Copyright: 2025
Pages: 22
Source title:
Applying Remote Sensing and GIS for Spatial Analysis and Decision-Making
Source Author(s)/Editor(s): Mouhcine Batchi (University of Ibn Tofail, Morocco)and Adil Moumane (University of Ibn Tofail, Morocco)
DOI: 10.4018/979-8-3693-6452-9.ch002
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Abstract
Aeolian sediments cover roughly 6% of the Earth's surface, mainly in arid regions, accounting for 97% of their occurrence and spanning about 20% of the terrestrial surface. Sand drifts in these areas threaten fragile ecosystems by disrupting their stability. This study analyzes sand dune encroachment dynamics in the Tafilalet region of southeastern Morocco using geomatics techniques. Sand encroachment endangers human settlements, agricultural lands, and infrastructure. Employing remote sensing methods, including satellite imagery and the Fryberger method for estimating sand dune drifting, this research examines sand movement from 1984 to 2015. Results show a significant increase in sand-covered areas by approximately 44,872 hectares, driven by climatic conditions and human activities. The study highlights the severe risks to the Tafilalet oases and infrastructure, underscoring the need for continuous monitoring and sustainable management practices to mitigate sand encroachment impacts.
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