Article (Scientific journals)
Anthropogenic perturbation of the carbon fluxes from land to ocean
Regnier, Pierre A.G.; Friedlingstein, Pierre; Ciais, Philippe et al.
2013In Nature Geoscience, 6 (0), p. 597-607
Peer Reviewed verified by ORBi
 

Files


Full Text
regnier_et_al_2013.pdf
Publisher postprint (1.02 MB)
Download
Annexes
ngeo1830-s1.pdf
Publisher postprint (515.58 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] A substantial amount of the atmospheric carbon taken up on land through photosynthesis and chemical weathering is transported laterally along the aquatic continuum from upland terrestrial ecosystems to the ocean. So far, global carbon budget estimates have implicitly assumed that the transformation and lateral transport of carbon along this aquatic continuum has remained unchanged since pre-industrial times. A synthesis of published work reveals the magnitude of present-day lateral carbon fluxes from land to ocean, and the extent to which human activities have altered these fluxes. We show that anthropogenic perturbation may have increased the flux of carbon to inland waters by as much as 1.0 Pg C yr-1 since pre-industrial times, mainly owing to enhanced carbon export from soils. Most of this additional carbon input to upstream rivers is either emitted back to the atmosphere as carbon dioxide (~0.4 Pg C yr-1) or sequestered in sediments (~0.5 Pg C yr-1) along the continuum of freshwater bodies, estuaries and coastal waters, leaving only a perturbation carbon input of ~0.1 Pg C yr-1 to the open ocean. According to our analysis, terrestrial ecosystems store ~0.9 Pg C yr-1 at present, which is in agreement with results from forest inventories but significantly differs from the figure of 1.5 Pg C yr-1 previously estimated when ignoring changes in lateral carbon fluxes. We suggest that carbon fluxes along the land–ocean aquatic continuum need to be included in global carbon dioxide budgets.
Research center :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Regnier, Pierre A.G.
Friedlingstein, Pierre
Ciais, Philippe
Mackenzie, Fred T.
Gruber, Nicolas
Janssens, Ivan A.
Laruelle, Goulven Gildas
Lauerwald, Ronny
Luyssaert, Sebastiaan
Andersson, Andreas J.
Arndt, Sandra
Arnosti, Carol
Borges, Alberto  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Unité d'Océanographie chimique (UOC)
Dale, Andrew W.
Gallego-Sala, Angela V.
Goddéris, Yves
Goossens, Nicolas
Hartmann, Jens
Heinze, Christoph
Ilyina, Tatiana
Joos, Fortunat
LaRowe, Douglas Edward
Leifeld, Jens
Meysman, Filip J.R.
Munhoven, Guy ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Raymond, Peter A.
Spahni, Renato
Suntharalingam, Parv
Thullner, Martin
More authors (19 more) Less
Language :
English
Title :
Anthropogenic perturbation of the carbon fluxes from land to ocean
Publication date :
2013
Journal title :
Nature Geoscience
ISSN :
1752-0894
eISSN :
1752-0908
Publisher :
Nature Publishing Group, London, United Kingdom
Volume :
6
Issue :
0
Pages :
597-607
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 June 2013

Statistics


Number of views
401 (15 by ULiège)
Number of downloads
2437 (8 by ULiège)

Scopus citations®
 
889
Scopus citations®
without self-citations
757
OpenCitations
 
795

Bibliography


Similar publications



Contact ORBi