Le couvert végétal de la province du Ioba est sujette à de fortes mutations qui menacent sa durabilité. La présente étude vise à prévoir l’état de cette ressource végétale en 2055. La démarche méthodologie s’articule autour d’une revue de littérature, des collectes des données,de traitement d’images satellites landsat TM de l’année 2000, ETM de 2010 et OLI_TIRS de 2020. Les outils utilisés sont les logiciels de télédétection ENVI, de cartographie ARC Gis, et de projection SpaCelleà travers la méthode des automates cellulaires. La méthode de comparaison visuelle et statistique a été utilisée pour valider la qualité du modèle. Les résultats de cette recherche indiquent qu’entre 2000 et 2020, la superficie des cultures annuelles a connu une hausse de 20,26% suivie des forêt galerie avec 18,95%. Des baisses respectives de 27,82% et de 21,14% sont observées au niveau de la superficie des savanes arborées et des savanes arbustives. Selon les grandes tendances, il y a une forte probabilité de mutation des zones de végétation naturelle en zone anthropiques. La projection de 2020 à 2055 suivant le scénario optimiste laisse entrevoir une reconstitution du couvert végétal puisque les superficies des forêts galeries, des savanes arborées connaitra des hausses respectives de 1,25%, 41,33% tandis que la superficie de la savane arbustive connaîtra une baisse de 2,33%. En revanche, le scénario pessimiste de 2055 indique que les forêts galeries, les savanes arborées et arbustives verront leurs superficies respectives diminuées de 1,05%, 49,18% et 2,19%. Les activités anthropiques influenceront négativement la dynamique du couvert végétal de la province du Ioba.
MODÉLISATION DE LA DYNAMIQUE DU COUVERT VÉGÉTAL DANS LA PROVINCE DU IOBA EN DOMAINE SOUDANIEN AU BURKINA FASO PAR LA MÉTHODE DES AUTOMATES CELLULAIRES (SPACELLE)
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Country:
Burkina Faso
Volume & Issue:
Volume 05, Issue 07, July 2023
Page No:
4832-4842
Abstract:
KeyWords:
Modélisation, Automates cellulaire, couvert végétal, province Ioba, Burkina Faso.