Detection des changements dans l’utilisation et l’occupation des terres par globeland 30. Cas: Parc National de Talassemtane, Maroc
DOI:
https://doi.org/10.14195/1647-7723_32-1_4Palavras-chave:
GlobeLand30,, détection des changements,, SIG,, télédétection,, Talassemtane.Resumo
La détection des changements d’utilisation et d’occupation des terres revête un rôle important dans le suivi de la dynamique régressive ou progressive des espaces forestiers. Les Systèmes d’Information Géographique (SIG) et la télédétection permettent le suivi et la détection de ces changements par l’utilisation des cartes de l’occupation des sols générées pour plusieurs dates. Plusieurs institutions s’intéressent à la production de tels produits. La carte GlobeLand30 (GL30), première carte d’occupation des sols à l’échelle mondiale avec une résolution de 30 m, est l’une de ces produits. Nous avons utilisé GL30 au niveau de la zone du Parc National de Talassemtane (PNT) et à différentes périodes 2000, 2010 et 2020. Cela nous a permis d’une part de générer des cartes d’utilisation et d’occupation des terres pour les années 2000, 2010, 2020 et d’autre part de produire des cartes de changement dans l’utilisation et l’occupation des terres entre 2000-2010 et 2010-2020. Les résultats ont montré une régression de la superficie forestière évalué à 4039 ha entre 2000-2010 et à 442,62 ha pendant la période 2010-2020. Le présent travail servira pour les études de recherche dans la zone du PNT en particulier pour le suivi de la déforestation.
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