% surface area of ZHP grown in Brittany by water body catchment area

The surface percentage of potential wetlands (ZHP, Agro-Transfert Bretagne, 2008) of Brittany cultivated (excluding permanent grassland and assimilated) per water body catchment basin, is the result of a cross between potential wetlands and cultivated areas (Plotty GRP of 2018), cut and synthesised by water body catchment basin. These data have been produced as part of the report “Wetlands of Brittany — State of the alterations, Restoration issues”, available at the following link: https://rerzh.forum-zones-humides.org/ressources-et-outils/rapports/zones-humides-de-bretagne-etat-de-lieux-des-alterations-enjeux-de-la-restauration/ A detailed description of the method used is available on pages 94 to 104. For more information on Brittany’s potential wetlands (method, interests, boundaries...): https://agro-transfert-bretagne.univ-rennes1.fr/Territ_Eau/CONNAISSANCES/Outils_d_analyse_du_paysage/ZHPot0.php?orig=ok