Reference : Carbon dioxide in European coastal waters
Scientific journals : Letter to the editor
Life sciences : Aquatic sciences & oceanology
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/2150
Carbon dioxide in European coastal waters
English
Borges, Alberto mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Schiettecatte, L. S. [> > > >]
Abril, Gwenaël [> > > >]
Delille, Bruno mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Gazeau, Frédéric [> > > >]
Nov-2006
Estuarine Coastal & Shelf Science
Academic Press Ltd Elsevier Science Ltd
70
3
375-387
Yes (verified by ORBi)
International
0272-7714
London
[en] carbon dioxide ; fluxes ; coastal ecosystems ; estuaries
[en] We compiled from literature annually integrated air-water fluxes of carbon dioxide (CO2) computed from field measurements, in 20 coastal European environments that were gathered into 3 main ecosystems: inner estuaries, upwelling continental shelves and non-upwelling continental shelves. The comparison of annual cycles of the partial pressure of CO2 (pCO(2)) in 5 contrasting continental shelves provided insights into the biogeochemical drivers of the CO2 fluxes. The latter were also investigated by comparing CO2 fluxes to net ecosystem (NEP) and net community production (NCP) in 3 contrasted coastal ecosystems. Air-water CO2 fluxes were scaled at European regional level and compared to fluxes of atmospheric CO2 in other aquatic and terrestrial compartments. Continental shelves are significant sinks for atmospheric CO2 at an average rate of -1.9 molC m(-2) yr(-1) that scaled at European level corresponds to an absorption of atmospheric CO2 of -68.1 TgC yr(-1). This sink is equivalent to the one reported for the terrestrial biosphere of -66.1 TgC yr(-1), based on carbon-stock change models. Estuaries are significant sources of CO2 to the atmosphere at an average rate of 49.9 molC m(-2) yr(-1) that is higher than the CO2 emission to the atmosphere from rivers, streams and lakes. The scaled emission of CO2 to the atmosphere from inner estuaries of about 67.0 TgC yr(-1) would almost fully balance the sink of atmospheric CO2 computed for continental shelves. However, the scaled emission of CO2 from estuaries to the atmosphere is inconsistent with the potential emission of CO2 based on the fate of river organic carbon during estuarine transit. This discrepancy is most probably due to the poorly constrained surface area estimate of inner estuaries. (c) 2006 Elsevier Ltd. All rights reserved.
Commission européenne : Direction générale de la Recherche ; Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Fondamentale Collective d’Initiative des Chercheurs - FRFC
Carboeurope-GHG, CARBOOCEAN, EUROPTROPH, CANOPY, PEACE, SOLAS.BE
Researchers
http://hdl.handle.net/2268/2150
10.1016/j.ecss.2006.05.046
http://www.elsevier.com/wps/find/journaldescription.cws_home/622823/description#description
copyright Elsevier Ltd. All rights reserved.

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Borges_et_al_ECSS_revised_all orbi.pdfNo commentaryAuthor postprint548.31 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.