L’érosion éolienne des sols
L’érosion éolienne correspond à un phénomène naturel de dégradation des sols, accéléré localement par les activités humaines (friches, surpâturage, surexploitation). Une certaine intensité du vent, des caractéristiques de sols spécifiques et l’absence de couvert protecteur peuvent déclencher l’érosion.
Wind erosion is a natural phenomenon of soil degradation, locally accelerated by human activities (abandoned land, overgrazing, overexploitation). Certain wind intensity, specific soil characteristics, and lack of protective cover can trigger erosion.
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- Soil susceptibility to wind erosionVulnerable soil proportionIn France, one quarter of soils show susceptibility to wind erosion, of which 4% have a high predisposition.Most affected regions• The eastern part of Occitania and Provence – Alpes – Côte d'Azur show the strongest susceptibility to wind erosion (more than a quarter of their territory). This is likely explained by the combination of strong winds, dry soils with little vegetation over the Gulf of Lion. • Other sectors swept by sea winds are also affected, but to a lesser extent: the Normandy coast, northern Hauts-de-France, and Corsica. The same applies to major agricultural regions, such as the Centre or southern Hauts-de-France.
