Articles | Volume 17, issue 6
Research article
25 Mar 2020
Research article |  | 25 Mar 2020

High organic carbon burial but high potential for methane ebullition in the sediments of an Amazonian hydroelectric reservoir

Gabrielle R. Quadra, Sebastian Sobek, José R. Paranaíba, Anastasija Isidorova, Fábio Roland, Roseilson do Vale, and Raquel Mendonça


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Short summary
Hydropower is expanding in the Amazon Basin, but the potential effects of river damming on carbon fluxes cannot be gauged due to a lack of studies. We quantified, for the first time in an Amazonian reservoir, both organic carbon burial and the concentrations of methane in the sediments. We found that the dual role of sediments as both a carbon sink and methane source may be particularly pronounced in this Amazonian reservoir.
Final-revised paper