#CARTNAT
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mirbole01.bsky.social
CartNat : une cartographie du gradient de naturalité potentielle de la France métropolitaine
cartonumerique.blogspot.com/2021/09/zone...
Mise à jour du billet avec le dernier article repéré par @pmarques35.bsky.social‬
April 11, 2025 at 11:22 AM
pmarques35.bsky.social
[1/5] Une équipe de chercheurs franco-européens a conçu #CARTNAT, une carte HD de la « #naturalité » des #paysages en #France. L'objectif est d'aider à identifier les zones à protéger en priorité pour atteindre les attendus de #biodiversité à l’horizon 2030. #geography #mapping #naturalness
High-resolution naturalness mapping can support conservation policy objectives and identify locations for strongly protected areas in France - Communications Earth & Environment
Identifying areas of high naturalness potential and support for nature restoration efforts in France and across Europe is possible with a high-resolution mapping tool that combines spatial data on the...
www.nature.com
April 11, 2025 at 6:45 AM
pmarques35.bsky.social
[5/5] #CARTNAT soutient aussi l’analyse de la connectivité écologique, essentielle pour limiter la fragmentation et maintenir les processus naturels. Il est utilisé par Patrinat (MNHN, OFB, CNRS) pour relier les zones naturelles dans une stratégie à grande échelle. #geography #mapping #naturalness
Data model for Layer 1 of CARTNAT showing sub-models and component layers. Layer one “biophysical integrity” was built using expert weighting of key spatial layers available at the national scale for France. Where possible spatial layers were improved using sub-models that take advantage of historical data and regional variation based on ecoregions (GRECO native forest model and high probability forest model). Final input layers are shown as well as the priority order in which they were combined to produce the final layer.
April 11, 2025 at 6:45 AM
pmarques35.bsky.social
[2/5] #CARTNAT repose sur 3 critères : intégrité biophysique (écosystèmes peu modifiés), spontanéité des processus (nature libre d’évoluer) et continuité spatio-temporelle (surface et durée d’intact). Il cartographie la naturalité à l’échelle de 20 m sur tout le territoire. #geography #mapping
April 11, 2025 at 6:45 AM
pmarques35.bsky.social
[3/5] L’étude montre qu’en #France, seuls 0,77 % des 10 % de zones les plus naturelles sont fortement protégés. Or l’objectif SNAP vise 10 % de protection forte d’ici 2030. #CARTNAT permet d’identifier les 9 % restants comme « zones de recherche » prioritaires. #geography #mapping #naturalness
April 11, 2025 at 6:45 AM
pmarques35.bsky.social
[4/5] #CARTNAT est déjà testé dans plusieurs régions comme PACA pour planifier l’extension des aires protégées. Il est croisé avec des données locales (espèces, habitats) pour guider les décisions régionales en concertation avec ONG et collectivités. #geography #mapping #naturalness
Map of mainland France showing high natural potential areas, existing strong protection areas and all other protected areas. Top 10% areas of high naturalness potential areas according to CARTNAT analysis (pale green) compared with existing strongly protected areas in France (dark grey) and all other protected areas in France (hatched fill). Zoom area 1 shows isolated pockets of unprotected high naturalness (pale green) that could be considered for protection and connected together. Zoom area 2 shows an existing cluster of areas of strong protection (dark grey), surrounded by areas of normal protection (hatched fill) and areas of high naturalness (pale green) that could be combined under strong protection to build a network of large intact well protected high naturalness areas. Zoom area 3 shows large contiguous areas of high naturalness (pale green) surrounded by areas of normal protection (hatched fill) which could be candidate areas for a new area of strong protection. Diameter of zoom areas is equal to 175 km (see also Fig. 5 and discussion for details of examples).
April 11, 2025 at 6:45 AM
bigearthdata.ai
High-resolution naturalness mapping can support conservation policy objectives and identify locations for strongly protected areas in France
->Nature | #ProtectedArea #Conservation | More info from EcoSearch
High-resolution naturalness mapping can support conservation policy objectives and identify locations for strongly protected areas in France
CARTNAT was developed for the area of Metropolitan France which includes the island of Corsica and is the largest of the European Union countries (~13% of the European Union’s surface). It covers an area of nearly 550,000 square kilometres (210,020...
www.nature.com
April 10, 2025 at 5:59 PM