38ace42f-d82e-46b2-8fcf-622ddad20f2c Alban Thomas LETG-RENNES UMR 6554 CNRS Université de Rennes 2 alban.thomas@univ-rennes2.fr 2026-03-17T11:39:25 ISO 19115:2003/19139 1.0 Potential wetlands (Couesnon watershed, 2016-2017) - Zone Atelier Armorique ZAAr 2019-06 https://www.osuris.fr/geonetwork/srv/metadata/38ace42f-d82e-46b2-8fcf-622ddad20f2c This map represents potential wetlands of the Couesnon watershed bottom valley at 1 : 25 000. Potential wetlands correspond to the largest area that wetlands would represent without human activity and are characterized by a hydromorphic soil (Mérot et al., 2006). A LiDAR-derived DTM (from IGN) and 107 soil samples were used to estimate an elevation threshold between hydromorphic and non-hydromorphic soil, according to the nearest stream Strahler order (Rapinel et al, 2017). Elodie Fabre LETG-RENNES UMR 6554 CNRS Université de Rennes 2 elodiefabre@free.fr Sebastien Rapinel LETG-RENNES UMR 6554 CNRS Université de Rennes 2 sebastienrapinel@gmail.com https://www.osuris.fr/geonetwork/srv/api/records/38ace42f-d82e-46b2-8fcf-622ddad20f2c/attachments/ZH_potentielles.png Zone humide potentielle Couesnon Environnement Potential wetlands ZAAr Zone Atelier Armorique ZAAr Sols Habitats et biotopes Hydrographie GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.inspire-theme Utilisation libre sous réserve de mentionner la source (a minima le nom du producteur) et la date de sa dernière mise à jour Usage libre sous réserve des mentions obligatoires sur tout document de diffusion : "Source : {Unité de recherche}"" 25000 environment 2018-04-01T00:00:00 2018-04-01T00:00:00 -1.707 -1.0382 48.2309 48.6659 ESRI Shapefile {version si connue} OSUR OSUR osuris@univ-rennes1.fr https://www.osuris.fr/geoserver/zaar/wms OGC:WMS-1.3.0-http-get-capabilities ZH_potentielles Zones humides potentielles de fond de vallée (bassin versant du Couesnon COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2018-06-29 conforme true OSUR Merot, P., Hubert-Moy, L., Gascuel-Odoux, C., Clement, B., Durand, P., Baudry, J., Thenail, C., 2006. A Method for Improving the Management of Controversial Wetland. Environmental Management 37, 258‑70. https://doi.org/10.1007/s00267-004-0391-4. Rapinel, S., Clément, B., Dufour, S., Hubert-Moy, L., 2017. Fine-Scale Monitoring of Long-Term Wetland Loss Using LiDAR Data and Historical Aerial Photographs: The Example of the Couesnon Floodplain, France. Wetlands,, 1‑13. https://doi.org/10.1007/s13157-017-0985-2.