{"id":154,"date":"2025-09-29T18:32:03","date_gmt":"2025-09-29T16:32:03","guid":{"rendered":"https:\/\/geops.geol.u-psud.fr\/pds\/?p=154"},"modified":"2025-09-29T18:37:17","modified_gmt":"2025-09-29T16:37:17","slug":"biocod","status":"publish","type":"post","link":"https:\/\/geops.geol.u-psud.fr\/pds\/2025\/09\/29\/biocod\/","title":{"rendered":"BIOCOD"},"content":{"rendered":"

BIOlogical productivity changes and their leverage on the Carbon cycle during past Deglaciations<\/h4><\/div><\/div><\/div><\/div><\/div>

Financement\u00a0: ANR-PCR2022 (2023-2026)<\/p>\n

Porteuse du projet\u00a0: S. Duchamp-Alphonse<\/a>\u00a0(GEOPS)<\/p>\n

Co-porteuses.eurs des \u201cWorkpackages\u201d: A. Landais et N. Boutte (LSCE), J. Etourneau et M. Sanchez-Goni (EPOC), Roberto Grilli (IGE), et A. S\u00e9journ\u00e9 (GEOPS)<\/p>\n

Au total le projet f\u00e9d\u00e8re 31 collaborateurs de 4 universit\u00e9s fran\u00e7aises (GEOPS, LSCE, IGE, EPOC) et 6 collaborations externes (LOG, ESE\/ AgroParitech, LMD\/ENS Paris, UNIL, PICE, CARTEL).<\/p>\n<\/div>

<\/div><\/div>

L\u2019\u00e9tude des transitions glaciaires-interglaciaires du Quaternaire, aussi appel\u00e9es Terminaisons, est essentielle pour r\u00e9pondre aux d\u00e9fis li\u00e9s aux changements climatiques actuels, car elles sont associ\u00e9es \u00e0 des augmentations de 50-100 ppm de la concentration atmosph\u00e9rique en CO2<\/sub> (pCO2<\/sub>), en quelques milliers d’ann\u00e9es. Interpr\u00e9ter quantitativement ces changements de pCO2<\/sub> reste difficile car les stocks et flux de carbone associ\u00e9s aux principaux r\u00e9servoirs du syst\u00e8me climatique sont mal connus. C\u2019est en particulier le cas de ceux impliquant la productivit\u00e9 biologique pourtant \u00e0 l\u2019interface entre atmosph\u00e8re, hydrosph\u00e8re et lithosph\u00e8re. L\u2019objectif de BIOCOD est de quantifier les changements de productivit\u00e9 biologique et leurs impacts sur les variations de pCO2 <\/sub>au cours des terminaisons cl\u00e9s des 800 000 derni\u00e8res ann\u00e9es via l\u2019\u00e9tude multi-outils de carottes de s\u00e9diments et de carottes de glaces, et via l\u2019utilisation de mod\u00e8les climatiques.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-154","post","type-post","status-publish","format-standard","hentry","category-cycle-carbonne"],"_links":{"self":[{"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/posts\/154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/comments?post=154"}],"version-history":[{"count":2,"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/posts\/154\/revisions"}],"predecessor-version":[{"id":162,"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/posts\/154\/revisions\/162"}],"wp:attachment":[{"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/media?parent=154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/categories?post=154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geops.geol.u-psud.fr\/pds\/wp-json\/wp\/v2\/tags?post=154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}