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.
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.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Feb 2021
Research article |
| 22 Feb 2021
| 22 Feb 2021
Changing sources and processes sustaining surface CO2 and CH4 fluxes along a tropical river to reservoir system
Groupe de Recherche Interuniversitaire en Limnologie et en
Environnement Aquatique (GRIL), Département des Sciences Biologiques,
Université du Québec à Montréal, Montréal, H2X 3X8,
Canada
Yves T. Prairie
Groupe de Recherche Interuniversitaire en Limnologie et en
Environnement Aquatique (GRIL), Département des Sciences Biologiques,
Université du Québec à Montréal, Montréal, H2X 3X8,
Canada
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Cited
18 citations as recorded by crossref.
- Métodos aplicados a la estimación de gases de efecto invernadero en los embalses de hidroeléctricas R. Pérez-Cedeño et al. https://doi.org/10.14349/sumneg/2022.V13.N28.A6
- Sediment methane production within eutrophic reservoirs: The importance of sedimenting organic matter R. Gruca-Rokosz & M. Cieśla https://doi.org/10.1016/j.scitotenv.2021.149219
- Ecosystem Metabolism Is the Dominant Source of Carbon Dioxide in Three Young Boreal Cascade‐Reservoirs (La Romaine Complex, Québec) P. Barbosa et al. https://doi.org/10.1029/2022JG007253
- Dissolved organic matter mediates the effects of warming and inorganic nutrients on a lake planktonic food web M. Hébert et al. https://doi.org/10.1002/lno.12177
- Water depth and productivity regulate methane (CH4) emissions from temperate cascade reservoirs in northern China J. Zhong et al. https://doi.org/10.1016/j.jhydrol.2023.130170
- Isotopic Evidence for Anaerobic Oxidation of Methane in the Freshwater Sediments of Reservoirs: The Impact of Selected Environmental Factors R. Gruca-Rokosz & D. Szal https://doi.org/10.3390/w14213375
- Depth-resolved carbon dioxide and methane concentrations in 522 lakes, ponds, and reservoirs worldwide J. Rabaey et al. https://doi.org/10.1038/s41597-026-06751-0
- Patterns and drivers of CH4 concentration and diffusive flux from a temperate river–reservoir system in North China F. Yang et al. https://doi.org/10.1016/j.jes.2021.12.004
- Greenhouse gas emissions from hydroelectric reservoirs: mechanistic understanding of influencing factors and future prospect A. Kumar et al. https://doi.org/10.1007/s11356-023-25717-y
- Sustainable transitions in tropical reservoirs as sociotechnical systems using forest restoration for carbon footprint offsetting P. Silva et al. https://doi.org/10.2166/bgs.2025.008
- Downstream carbon transport and surface CO2 evasion in the Hanjiang River Network and their implications for regional carbon budget S. Lv et al. https://doi.org/10.1016/j.scitotenv.2023.163839
- A new modelling framework to assess biogenic GHG emissions from reservoirs: The G-res tool Y. Prairie et al. https://doi.org/10.1016/j.envsoft.2021.105117
- CO2 dynamics in a small and old subtropical reservoir in East Asia: Environmental controls driving seasonal and spatial variability C. Chan et al. https://doi.org/10.1016/j.scitotenv.2022.159047
- CO2 and CH4 dynamics in a eutrophic tropical Andean reservoir E. Bohórquez-Bedoya et al. https://doi.org/10.1371/journal.pone.0298169
- Flux and Influencing Factors of CO<sub>2</sub> Emissions from Inland Water Bodies Y. LIU et al. https://doi.org/10.3724/EE.1672-9250.2025.53.056
- Metabolism and carbonate buffering drive seasonal dynamics of CO2 emissions from two German reservoirs P. Leng & M. Koschorreck https://doi.org/10.1016/j.watres.2023.120302
- Nutrient accumulation and eutrophication restricted CO2 emissions in the two backwater bays in the Three Gorges Reservoir (TGR), China C. Jian et al. https://doi.org/10.1016/j.jes.2025.04.043
- Methane oxidation dynamics in a stratified lake: Insights revealed from a mass balance and carbon stable isotopes T. Langenegger et al. https://doi.org/10.1002/lno.12195
18 citations as recorded by crossref.
- Métodos aplicados a la estimación de gases de efecto invernadero en los embalses de hidroeléctricas R. Pérez-Cedeño et al. https://doi.org/10.14349/sumneg/2022.V13.N28.A6
- Sediment methane production within eutrophic reservoirs: The importance of sedimenting organic matter R. Gruca-Rokosz & M. Cieśla https://doi.org/10.1016/j.scitotenv.2021.149219
- Ecosystem Metabolism Is the Dominant Source of Carbon Dioxide in Three Young Boreal Cascade‐Reservoirs (La Romaine Complex, Québec) P. Barbosa et al. https://doi.org/10.1029/2022JG007253
- Dissolved organic matter mediates the effects of warming and inorganic nutrients on a lake planktonic food web M. Hébert et al. https://doi.org/10.1002/lno.12177
- Water depth and productivity regulate methane (CH4) emissions from temperate cascade reservoirs in northern China J. Zhong et al. https://doi.org/10.1016/j.jhydrol.2023.130170
- Isotopic Evidence for Anaerobic Oxidation of Methane in the Freshwater Sediments of Reservoirs: The Impact of Selected Environmental Factors R. Gruca-Rokosz & D. Szal https://doi.org/10.3390/w14213375
- Depth-resolved carbon dioxide and methane concentrations in 522 lakes, ponds, and reservoirs worldwide J. Rabaey et al. https://doi.org/10.1038/s41597-026-06751-0
- Patterns and drivers of CH4 concentration and diffusive flux from a temperate river–reservoir system in North China F. Yang et al. https://doi.org/10.1016/j.jes.2021.12.004
- Greenhouse gas emissions from hydroelectric reservoirs: mechanistic understanding of influencing factors and future prospect A. Kumar et al. https://doi.org/10.1007/s11356-023-25717-y
- Sustainable transitions in tropical reservoirs as sociotechnical systems using forest restoration for carbon footprint offsetting P. Silva et al. https://doi.org/10.2166/bgs.2025.008
- Downstream carbon transport and surface CO2 evasion in the Hanjiang River Network and their implications for regional carbon budget S. Lv et al. https://doi.org/10.1016/j.scitotenv.2023.163839
- A new modelling framework to assess biogenic GHG emissions from reservoirs: The G-res tool Y. Prairie et al. https://doi.org/10.1016/j.envsoft.2021.105117
- CO2 dynamics in a small and old subtropical reservoir in East Asia: Environmental controls driving seasonal and spatial variability C. Chan et al. https://doi.org/10.1016/j.scitotenv.2022.159047
- CO2 and CH4 dynamics in a eutrophic tropical Andean reservoir E. Bohórquez-Bedoya et al. https://doi.org/10.1371/journal.pone.0298169
- Flux and Influencing Factors of CO<sub>2</sub> Emissions from Inland Water Bodies Y. LIU et al. https://doi.org/10.3724/EE.1672-9250.2025.53.056
- Metabolism and carbonate buffering drive seasonal dynamics of CO2 emissions from two German reservoirs P. Leng & M. Koschorreck https://doi.org/10.1016/j.watres.2023.120302
- Nutrient accumulation and eutrophication restricted CO2 emissions in the two backwater bays in the Three Gorges Reservoir (TGR), China C. Jian et al. https://doi.org/10.1016/j.jes.2025.04.043
- Methane oxidation dynamics in a stratified lake: Insights revealed from a mass balance and carbon stable isotopes T. Langenegger et al. https://doi.org/10.1002/lno.12195
Saved (final revised paper)
Latest update: 17 Jun 2026
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.
Freshwater reservoirs emit greenhouse gases (GHGs, CO2 and CH4) to the atmosphere; however, the...
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