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L’atlas des zones inondables (AZI) concerne le bassin versant des rivières appartenant au bassin versant du lac de Grandlieu. Il est constitué des rivières de l’Acheneau, la Boulogne, le Tenu, l’Issoire, la Logne et l’Ognon et s’étend sur les deux départements de la Loire-Atlantique et de la Vendée.
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- les unités hydrogéomorphologiques de la plaine alluviale des cours d'eau
- les éléments de l'occupation du sol (de type ponctuel) susceptibles de jouer un rôle dans le fonctionnement hydraulique de la plaine alluviale.
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Le rapport et la cartographie sont disponibles sur les sites internet et intranet de la DDEA 44.</gco:CharacterString>
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