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Review
. 2023 Jan;613(7944):449-459.
doi: 10.1038/s41586-022-05500-8. Epub 2023 Jan 18.

River ecosystem metabolism and carbon biogeochemistry in a changing world

Tom J Battin  1 , Ronny Lauerwald  2 , Emily S Bernhardt  3 , Enrico Bertuzzo  4 , Lluís Gómez Gener  5 , Robert O Hall Jr  6 , Erin R Hotchkiss  7 , Taylor Maavara  8 , Tamlin M Pavelsky  9 , Lishan Ran  10   11 , Peter Raymond  12 , Judith A Rosentreter  12   13 , Pierre Regnier  14
Affiliations
Review

River ecosystem metabolism and carbon biogeochemistry in a changing world

Tom J Battin et al. Nature. 2023 Jan.

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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References

    1. Battin, T. J. et al. The boundless carbon cycle. Nat. Geosci. 2, 598–600 (2009). - DOI
    1. Raymond, P. A. et al. Global carbon dioxide emissions from inland waters. Nature 503, 355–359 (2013). - DOI
    1. Hotchkiss, E. R. et al. Sources of and processes controlling CO2 emissions change with the size of streams and rivers. Nat. Geosci. 8, 696–699 (2015). Important study conceptualizing (on the basis of a data synthesis) how the sources and magnitude of CO2 evasion flux change along a stream–river continuum.
    1. Ciais, P. et al. in Climate Change 2013 The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (eds Stocker, T. F. et al.) Ch. 6 (Cambridge Univ. Press, 2013).
    1. Friedlingstein, P. et al. Global carbon budget 2021. Earth Syst. Sci. Data 14, 1917–2005 (2022). - DOI

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