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River ecosystem metabolism and carbon biogeochemistry in a changing world
Battin, T.J.; Lauerwald, R.; Bernhardt, E.S.; Bertuzzo, E.; Gener, L.G.; Hall, R.O.; Hotchkiss, E.R.; Maavara, T.; Pavelsky, T.M.; Ran, L.; Raymond, P.; Rosentreter, J.A.; Regnier, P. (2023). River ecosystem metabolism and carbon biogeochemistry in a changing world. Nature (Lond.) 613(7944): 449-459. https://dx.doi.org/10.1038/s41586-022-05500-8
In: Nature: International Weekly Journal of Science. Nature Publishing Group: London. ISSN 0028-0836; e-ISSN 1476-4687, meer
Peer reviewed article  
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Trefwoord
    Marien/Kust
Author keywords
    AGRICULTURAL LAND-USE;GLOBAL SURFACE-WATER;INLAND WATERS;TEMPORAL VARIABILITY;STREAM METABOLISM;TIME-SERIES;FLUXES;EMISSIONS;CO2;TRENDS
Auteurs  Top 
  • Battin, T.J.
  • Lauerwald, R., meer
  • Bernhardt, E.S.
  • Bertuzzo, E.
  • Gener, L.G.
  • Hall, R.O.
  • Hotchkiss, E.R.
  • Maavara, T.
  • Pavelsky, T.M.
  • Ran, L.
  • Raymond, P.
  • Rosentreter, J.A.
  • Regnier, P., meer
Abstract
    River networks represent the largest biogeochemical nexus between the continents, ocean and atmosphere. Our current understanding of the role of rivers in the global carbon cycle remains limited, which makes it difficult to predict how global change may alter the timing and spatial distribution of riverine carbon sequestration and greenhouse gas emissions. Here we review the state of river ecosystem metabolism research and synthesize the current best available estimates of river ecosystem metabolism. We quantify the organic and inorganic carbon flux from land to global rivers and show that their net ecosystem production and carbon dioxide emissions shift the organic to inorganic carbon balance en route from land to the coastal ocean. Furthermore, we discuss how global change may affect river ecosystem metabolism and related carbon fluxes and identify research directions that can help to develop better predictions of the effects of global change on riverine ecosystem processes. We argue that a global river observing system will play a key role in understanding river networks and their future evolution in the context of the global carbon budget.
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