@article{fdi:010061464,
  title = {{A}mazon river carbon dioxide outgassing fuelled by wetlands},
  author = {{A}bril, {G}. and {M}artinez, {J}ean-{M}ichel and {A}rtigas, {L}.{F}. and {M}oreira {T}urcq, {P}atricia and {B}enedetti, {M}.{F}. and {V}idal, {L}. and {M}eziane, {T}. and {K}im, {J}.{H}. and {B}ernardes, {M}.{C}. and {S}avoye, {N}. and {D}eborde, {J}. and {S}ouza, {E}.{L}. and {A}lberic, {P}. and de {S}ouza, {M}.{F}.{L}. and {R}oland, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}iver systems connect the terrestrial biosphere, the atmosphere and the ocean in the global carbon cycle(1). {A} recent estimate suggests that up to 3 petagrams of carbon per year could be emitted as carbon dioxide ({CO}2) from global inland waters, offsetting the carbon uptake by terrestrial ecosystems(2). {I}t is generally assumed that inland waters emit carbon that has been previously fixed upstream by land plant photosynthesis, then transferred to soils, and subsequently transported downstream in run-off. {B}ut at the scale of entire drainage basins, the lateral carbon fluxes carried by small rivers upstream do not account for all of the {CO}2 emitted from inundated areas downstream(3,4). {T}hree-quarters of the world's flooded land consists of temporary wetlands(5), but the contribution of these productive ecosystems(6) to the inland water carbon budget has been largely overlooked. {H}ere we show that wetlands pump large amounts of atmospheric {CO}2 into river waters in the floodplains of the central {A}mazon. {F}looded forests and floating vegetation export large amounts of carbon to river waters and the dissolved {CO}2 can be transported dozens to hundreds of kilometres downstream before being emitted. {W}e estimate that {A}mazonian wetlands export half of their gross primary production to river waters as dissolved {CO}2 and organic carbon, compared with only a few per cent of gross primary production exported in upland (not flooded) ecosystems(1,7). {M}oreover, we suggest that wetland carbon export is potentially large enough to account for at least the 0.21 petagrams of carbon emitted per year as {CO}2 from the central {A}mazon {R}iver and its floodplains(8). {G}lobal carbon budgets should explicitly address temporary or vegetated flooded areas, because these ecosystems combine high aerial primary production with large, fast carbon export, potentially supporting a substantial fraction of {CO}2 evasion from inland waters.},
  keywords = {{AMAZONIE} ; {BRESIL}},
  booktitle = {},
  journal = {{N}ature},
  volume = {505},
  numero = {7483},
  pages = {395--398 + 11 p. en annexe},
  ISSN = {0028-0836},
  year = {2014},
  DOI = {10.1038/nature12797},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061464},
}