Anthropogenic perturbation of the carbon fluxes from land to ocean

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Author(s) Regnier, P., Friedlingstein, P., Ciais, P., Mackenzie, F. T., Gruber, N., Janssens, I. A., Laruelle, G. G., Lauerwald, R., Luyssaert, S., Andersson, A. J., Arndt, S., Arnosti, C., Borges, A. V., Dale, A. W., Gallego-Sala, A., Godderis, Y., Goossens, N., Hartmann, J., Heinze, C., Ilyina, T., Joos, F., LaRowe, D. E., Leifeld, J., Meysman, F. J. R., Munhoven, G., Raymond, P. A., Spahni, R., Suntharalingam, P., Thullner, M.
Publication Type Journal Items, Publication Status: Published
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Title Anthropogenic perturbation of the carbon fluxes from land to ocean
Author(s) Regnier, P.
Friedlingstein, P.
Ciais, P.
Mackenzie, F. T.
Gruber, N.
Janssens, I. A.
Laruelle, G. G.
Lauerwald, R.
Luyssaert, S.
Andersson, A. J.
Arndt, S.
Arnosti, C.
Borges, A. V.
Dale, A. W.
Gallego-Sala, A.
Godderis, Y.
Goossens, N.
Hartmann, J.
Heinze, C.
Ilyina, T.
Joos, F.
LaRowe, D. E.
Leifeld, J.
Meysman, F. J. R.
Munhoven, G.
Raymond, P. A.
Spahni, R.
Suntharalingam, P.
Thullner, M.
Journal or Series Title Nature geoscience
Volume Number 6
Issue Number 8
Start Page 597
End Page 607
ISSN 1752-0894
1752-0908
Publisher Nature Publ. Group
Publication Place London, UK
Publication Date 2013-08
Abstract 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 (similar to 0.4 Pg C yr(-1)) or sequestered in sediments (similar to 0.5 Pg C yr(-1)) along the continuum of freshwater bodies, estuaries and coastal waters, leaving only a perturbation carbon input of similar to 0.1 Pg C yr(-1) to the open ocean. According to our analysis, terrestrial ecosystems store similar to 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.
DOI 10.1038/NGEO1830
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03731
Organisational Unit(s)
NEBIS System Number 005502522
Source Database ID WOS-000322441900008
SCOPUS-84881364494
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@article{Rgnr2013,
  author = "Regnier, P. and Friedlingstein, P. and Ciais, P. and Mackenzie, F. T. and Gruber, N. and Janssens, I. A. and Laruelle, G. G. and Lauerwald, R. and Luyssaert, S. and Andersson, A. J. and Arndt, S. and Arnosti, C. and Borges, A. V. and Dale, A. W. and Gallego-Sala, A. and Godderis, Y. and Goossens, N. and Hartmann, J. and Heinze, C. and Ilyina, T. and Joos, F. and LaRowe, D. E. and Leifeld, J. and Meysman, F. J. R. and Munhoven, G. and Raymond, P. A. and Spahni, R. and Suntharalingam, P. and Thullner, M.",
  title = "{A}nthropogenic perturbation of the carbon fluxes from land to ocean",
  journal = "Nature geoscience",
  year = 2013,
  volume = "6",
  number = "8",
  pages = "597--607",
  month = aug,
}


E-Citations record created: Mon, 02 Sep 2013, 13:05:48 CET