Diurnal evolution of the temperature sensitivity of CO2 efflux in permafrost soils under control and warm conditions

• Published in: Science of The Total Environment
• Main Authors: Fouche, Julien, Keller, Catherine, Allard, Michel, Ambrosi, Jean-Paul
• Other Authors: Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2017
• Subjects: [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Canada; Nunavik; Salluit; permafrost; Tundra
• Online Access: https://hal.archives-ouvertes.fr/hal-01765457; https://doi.org/10.1016/j.scitotenv.2016.12.089

International audience Cryosols contain similar to 33% of the global soil organic carbon. Cryosol warming and permafrost degradation may enhance the CO2 release to the atmosphere through the microbial decomposition. Despite the large carbon pool, the permafrost carbon feedback on the climate remains...