Biogeosciences
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Articles | Volume 18, issue 4
Articles | Volume 18, issue 4
https://doi.org/10.5194/bg-18-1333-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-1333-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 4
Research article
 | 
22 Feb 2021
Research article |  | 22 Feb 2021

Changing sources and processes sustaining surface CO2 and CH4 fluxes along a tropical river to reservoir system

Cynthia Soued and Yves T. Prairie

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Short summary
Freshwater reservoirs emit greenhouse gases (GHGs, CO2 and CH4) to the atmosphere; however, the sources underlying these emissions are numerous, and their magnitude is not well known. This study quantifies surface CO2 and CH4 emissions and all their potential sources in a tropical reservoir. Results highlight the changes in GHG sources along the river–reservoir continuum, with internal metabolism being a key component but highly uncertain and challenging to estimate at an ecosystem scale.
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