Mostrar el registro sencillo del ítem

The impact of microbial carbonic anhydrase activity on atmospheric concentrations of CO18O and COS at large scales

hal.structure.identifierEcologie et Ecophysiologie Forestières [devient SILVA en 2018] [EEF]
dc.contributor.authorCUNTZ, Matthias
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWINGATE, Lisa
dc.date.accessioned2024-04-08T11:57:17Z
dc.date.available2024-04-08T11:57:17Z
dc.date.issued2017
dc.date.conference2017-08-21
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195826
dc.description.abstractEnPhotosynthesis (GPP), the largest CO 2 flux from the land surface, i s currently estimated with considerable uncertainty between 100-175 Pg C yr -1 . More robust estimates of global GPP could be obtained from the atmospheric b udgets of other tracers such as, the oxygen isotopic composition (δ 18 O) of atmospheric CO 2 or carbonyl sulphide (COS). However, estimating GPP using thes e tracers hinges on a better understanding of how soil microbes modify th e atmospheric concentrations of CO 18 O and COS at large scales. In par ticular, understanding better the role and activity of the enzyme Carbonic Anhydrase (CA) in soil microbes is a critical factor u nderpinning the successful implementation of these tracers in global scale models. We addr essed this knowledge gap by measuring the exchange of CO 18 O and COS between soil microcosms and the atmosphere from over 60 sites covering a range of biome s across Europe and the USA. This novel dataset has led to the development of a new mechanistic framework that can be easily i mplemented in mult i-tracer Earth system models to predict variati ons in soil CA a ctivity across the terrestrial land surface. Using this multi-tracer approach we provi de independent estimates of globa l GPP constrained by the atmospheric budgets of CO 2 , CO 18 O and COS.
dc.language.isoen
dc.title.enThe impact of microbial carbonic anhydrase activity on atmospheric concentrations of CO18O and COS at large scales
dc.typeCommunication dans un congrès
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.title10. International Carbon Dioxide Conference
bordeaux.countryCH
bordeaux.conference.cityInterlaken
bordeaux.peerReviewedoui
hal.identifierhal-02787886
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2017-08-25
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02787886v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2017&rft.au=CUNTZ,%20Matthias&WINGATE,%20Lisa&rft.genre=unknown


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem