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Représente l\u2019état des milieux naturels en 2014.Ce produit est un des intrants nécessaires à l\u2019élaboration d\u2019un plan intégré de conservation des milieux naturels et de la biodiversité du Saint-Laurent : la planification de cet exercice nécessite d\u2019avoir une image juste de la répartition spatiale des écosystèmes dans le territoire d\u2019étude afin de produire un atlas des territoires d\u2019intérêt pour la conservation.Organisation des classes thématiques :sept thèmes subdivisés en vingt-deux classes générales, elles-mêmes subdivisées en une cinquantaine de classes détaillées (la classe détaillée correspond à l\u2019information attributaire de la source de la donnée, elle n\u2019est pas systématiquement validée). Description des sept thèmes: eau profonde, friche / arbustif, milieu agricole, milieu anthropique, milieu boisé, milieu humide, sol nu. Résolution spatiale: représentation de tous les éléments d\u2019une superficie minimale de 0,5 ha (par intégration de données ou photo-interprétation). Méthodologie et sources: la cartographie de l\u2019occupation du sol des Basses-terres du Saint-Laurent est principalement basée sur un regroupement et une bonification des meilleurs produits existants pour chacune des thématiques : Base de données des cultures assurées (BDCA) \u2013 Financière agricole du Québec 2014Base de données topographique du Québec (BDTQ) \u2013 version 2013Cadre de référence hydrographique du Québec (CRHQ) \u2013 MDDELCC 2013Cartographie des cultures au Canada \u2013 Agriculture et Agroalimentaire Canada (AAC) 2014Cartographie détaillée des milieux humides \u2013 CIC et MDDELCC 2010 à 2017 selon le secteurRéseau hydrographique national (RHN) \u2013 Ressources naturelles Canada \u2013 version 2016Système d\u2019information écoforestière, 4e inventaire \u2013 MRNF 2006 \u2013 version 2014Système de référence linéaire \u2013 Transports Québec 2014Pour plus d\u2019informations, le rapport méthodologique est disponible à l\u2019adresse suivante : 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