Sand encroachment in the Saharan Algeria; the not declared disaster - Case study: In-Salah region in the Tidikelt

Nouar Boulghobra


As a major natural risk, sand encroachment in the Tidikelt is certainly due to its physical and climatic context, but the ceaseless anthropogenic pressure exerted on this arid system already subjected to climatic extremes, had particularly increased the vulnerability to the risk, resulting on heavy damages on the human, agricultural and socio-economic aspect. Remote sensing technology allowed the spatiotemporal monitoring of the mobile dunes over 19 years, a progressive evolution remains confronted with a low resilience, from where an awakening on behalf of the population and authorities are strongly necessary for a sustainable and efficient development.


remote sensing; Landsat; sand encroachment; mobile dunes; Tidikelt; Algeria

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