Articles | Volume 13, issue 6
https://doi.org/10.5194/bg-13-1919-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-13-1919-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
30 Mar 2016
Research article |
| 30 Mar 2016
Low methane (CH4) emissions downstream of a monomictic subtropical hydroelectric reservoir (Nam Theun 2, Lao PDR)
Chandrashekhar Deshmukh
Université de Toulouse, UPS GET, 14 Avenue E. Belin, 31400
Toulouse, France
Laboratoire d'Aérologie, Université de
Toulouse, CNRS UMR5560, 14 Av. Edouard Belin, 31400, Toulouse, France
Centre for Regulatory and Policy Research, TERI University, New
Delhi, India
now at: Nam Theun 2 Power Company Limited
(NTPC), Environment & Social Division, Water Quality and
Biodiversity Dept., Gnommalath Office, PO Box 5862, Vientiane, Lao PDR
Université de Toulouse, UPS GET, 14 Avenue E. Belin, 31400
Toulouse, France
Institut de Recherche pour le Développement (IRD),
UR234, GET; 14 Avenue E. Belin, 31400, Toulouse, France
Departamento de Geoquimica, Universidade Federal Fluminense,
Niteroi-RJ, Brazil
David Labat
Université de Toulouse, UPS GET, 14 Avenue E. Belin, 31400
Toulouse, France
Sylvie Pighini
Nam Theun 2 Power Company Limited (NTPC),
Environment & Social Division, Water Quality and
Biodiversity Dept., Gnommalath Office, PO Box 5862, Vientiane,
Lao PDR
now at: Innsbruck University, Institute of Ecology, 15
Sternwartestrasse, 6020 Innsbruck, Austria and Foundation
Edmund Mach, FOXLAB-FEM, Via E. Mach 1, 38010 San Michele all'Adige, Italy
Axay Vongkhamsao
Nam Theun 2 Power Company Limited (NTPC),
Environment & Social Division, Water Quality and
Biodiversity Dept., Gnommalath Office, PO Box 5862, Vientiane,
Lao PDR
Pierre Guédant
Nam Theun 2 Power Company Limited (NTPC),
Environment & Social Division, Water Quality and
Biodiversity Dept., Gnommalath Office, PO Box 5862, Vientiane,
Lao PDR
Wanidaporn Rode
Nam Theun 2 Power Company Limited (NTPC),
Environment & Social Division, Water Quality and
Biodiversity Dept., Gnommalath Office, PO Box 5862, Vientiane,
Lao PDR
Arnaud Godon
Nam Theun 2 Power Company Limited (NTPC),
Environment & Social Division, Water Quality and
Biodiversity Dept., Gnommalath Office, PO Box 5862, Vientiane,
Lao PDR
now at: Arnaud Godon Company, 44 Route de Genas, Nomade Lyon, 69003
Lyon, France
Vincent Chanudet
Electricité de France, Hydro Engineering Centre,
Sustainable Development Dpt, Savoie Technolac, 73373 Le
Bourget du Lac, France
Stéphane Descloux
Electricité de France, Hydro Engineering Centre,
Sustainable Development Dpt, Savoie Technolac, 73373 Le
Bourget du Lac, France
Dominique Serça
Laboratoire d'Aérologie, Université de
Toulouse, CNRS UMR5560, 14 Av. Edouard Belin, 31400, Toulouse, France
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Cited
25 citations as recorded by crossref.
- Greenhouse gas measurement from Chinese freshwater bodies: A review A. Kumar et al. 10.1016/j.jclepro.2019.06.052
- Effect of sporadic destratification, seasonal overturn, and artificial mixing on CH<sub>4</sub> emissions from a subtropical hydroelectric reservoir F. Guérin et al. 10.5194/bg-13-3647-2016
- Seasonal variations in dissolved CH4 and its controlling factors in two subtropical eutrophic reservoirs in China Y. Lv et al. 10.1007/s12517-022-09513-5
- First Assessment of Inorganic Nitrogen Deposition Budget Following the Impoundment of a Subtropical Hydroelectric Reservoir (Nam Theun 2, Lao PDR) M. Adon et al. 10.1029/2018JD029027
- Ebullition was a major pathway of methane emissions from the aquaculture ponds in southeast China P. Yang et al. 10.1016/j.watres.2020.116176
- Carbon dioxide emissions from the flat bottom and shallow Nam Theun 2 Reservoir: drawdown area as a neglected pathway to the atmosphere C. Deshmukh et al. 10.5194/bg-15-1775-2018
- Carbon emissions affected by real-time reservoir operation: a hydrodynamic modeling approach coupled with air-water mass transfer J. Huang & Z. Li 10.1016/j.watres.2023.120118
- Understanding How Reservoir Operations Influence Methane Emissions: A Conceptual Model H. Jager et al. 10.3390/w15234112
- Greenhouse gas emissions from a semi-arid tropical reservoir in northeastern Brazil M. Rodriguez & P. Casper 10.1007/s10113-018-1289-7
- Assessing GHG Emissions of a Tropical Large Hydropower Reservoir Using G-res and GEE K. De Sarkar et al. 10.1007/s12524-024-02045-3
- Determining the net environmental performance of hydropower: A new methodological approach by combining life cycle and ecosystem services assessment A. Briones-Hidrovo et al. 10.1016/j.scitotenv.2019.136369
- Large Spatial Variations in Diffusive CH4 Fluxes from a Subtropical Coastal Reservoir Affected by Sewage Discharge in Southeast China P. Yang et al. 10.1021/acs.est.0c03431
- Annual CO2 and CH4 fluxes in coastal earthen ponds with Litopenaeus vannamei in southeastern China C. Tong et al. 10.1016/j.aquaculture.2021.737229
- Methane and nitrous oxide annual emissions from an old eutrophic temperate reservoir S. Descloux et al. 10.1016/j.scitotenv.2017.04.066
- Nam Theun 2 Reservoir four years after commissioning: significance of drawdown methane emissions and other pathways D. Serça et al. 10.1051/hydro/2016001
- Greenhouse Gas Emissions from Freshwater Reservoirs: What Does the Atmosphere See? Y. Prairie et al. 10.1007/s10021-017-0198-9
- A state-of-the-art review of greenhouse gas emissions from Indian hydropower reservoirs A. Kumar et al. 10.1016/j.jclepro.2021.128806
- Methane oxidation kinetics in northern freshwater lakes S. Thottathil et al. 10.1007/s10533-019-00552-x
- Environmental determinants of aerobic methane oxidation in a tropical river network L. Patel et al. 10.1016/j.watres.2024.122257
- Greenhouse gas emissions of hydropower in the Mekong River Basin T. Räsänen et al. 10.1088/1748-9326/aaa817
- Oxidation is a potentially significant methane sink in land-terminating glacial runoff K. Strock et al. 10.1038/s41598-024-73041-3
- Contrasting methane emissions from upstream and downstream rivers and their associated subtropical reservoir in eastern China L. Yang 10.1038/s41598-019-44470-2
- Methane dynamics downstream of a temperate run‐of‐the‐river reservoir T. DelSontro et al. 10.1002/lno.10387
- Effect of small water retention structures on diffusive CO2and CH4emissions along a highly impounded river L. Gómez-Gener et al. 10.1080/20442041.2018.1457846
- The validity of floating chambers in quantifying CO2 flux from headwater streams M. Rawitch et al. 10.2166/wcc.2020.199
22 citations as recorded by crossref.
- Greenhouse gas measurement from Chinese freshwater bodies: A review A. Kumar et al. 10.1016/j.jclepro.2019.06.052
- Effect of sporadic destratification, seasonal overturn, and artificial mixing on CH<sub>4</sub> emissions from a subtropical hydroelectric reservoir F. Guérin et al. 10.5194/bg-13-3647-2016
- Seasonal variations in dissolved CH4 and its controlling factors in two subtropical eutrophic reservoirs in China Y. Lv et al. 10.1007/s12517-022-09513-5
- First Assessment of Inorganic Nitrogen Deposition Budget Following the Impoundment of a Subtropical Hydroelectric Reservoir (Nam Theun 2, Lao PDR) M. Adon et al. 10.1029/2018JD029027
- Ebullition was a major pathway of methane emissions from the aquaculture ponds in southeast China P. Yang et al. 10.1016/j.watres.2020.116176
- Carbon dioxide emissions from the flat bottom and shallow Nam Theun 2 Reservoir: drawdown area as a neglected pathway to the atmosphere C. Deshmukh et al. 10.5194/bg-15-1775-2018
- Carbon emissions affected by real-time reservoir operation: a hydrodynamic modeling approach coupled with air-water mass transfer J. Huang & Z. Li 10.1016/j.watres.2023.120118
- Understanding How Reservoir Operations Influence Methane Emissions: A Conceptual Model H. Jager et al. 10.3390/w15234112
- Greenhouse gas emissions from a semi-arid tropical reservoir in northeastern Brazil M. Rodriguez & P. Casper 10.1007/s10113-018-1289-7
- Assessing GHG Emissions of a Tropical Large Hydropower Reservoir Using G-res and GEE K. De Sarkar et al. 10.1007/s12524-024-02045-3
- Determining the net environmental performance of hydropower: A new methodological approach by combining life cycle and ecosystem services assessment A. Briones-Hidrovo et al. 10.1016/j.scitotenv.2019.136369
- Large Spatial Variations in Diffusive CH4 Fluxes from a Subtropical Coastal Reservoir Affected by Sewage Discharge in Southeast China P. Yang et al. 10.1021/acs.est.0c03431
- Annual CO2 and CH4 fluxes in coastal earthen ponds with Litopenaeus vannamei in southeastern China C. Tong et al. 10.1016/j.aquaculture.2021.737229
- Methane and nitrous oxide annual emissions from an old eutrophic temperate reservoir S. Descloux et al. 10.1016/j.scitotenv.2017.04.066
- Nam Theun 2 Reservoir four years after commissioning: significance of drawdown methane emissions and other pathways D. Serça et al. 10.1051/hydro/2016001
- Greenhouse Gas Emissions from Freshwater Reservoirs: What Does the Atmosphere See? Y. Prairie et al. 10.1007/s10021-017-0198-9
- A state-of-the-art review of greenhouse gas emissions from Indian hydropower reservoirs A. Kumar et al. 10.1016/j.jclepro.2021.128806
- Methane oxidation kinetics in northern freshwater lakes S. Thottathil et al. 10.1007/s10533-019-00552-x
- Environmental determinants of aerobic methane oxidation in a tropical river network L. Patel et al. 10.1016/j.watres.2024.122257
- Greenhouse gas emissions of hydropower in the Mekong River Basin T. Räsänen et al. 10.1088/1748-9326/aaa817
- Oxidation is a potentially significant methane sink in land-terminating glacial runoff K. Strock et al. 10.1038/s41598-024-73041-3
- Contrasting methane emissions from upstream and downstream rivers and their associated subtropical reservoir in eastern China L. Yang 10.1038/s41598-019-44470-2
3 citations as recorded by crossref.
- Methane dynamics downstream of a temperate run‐of‐the‐river reservoir T. DelSontro et al. 10.1002/lno.10387
- Effect of small water retention structures on diffusive CO2and CH4emissions along a highly impounded river L. Gómez-Gener et al. 10.1080/20442041.2018.1457846
- The validity of floating chambers in quantifying CO2 flux from headwater streams M. Rawitch et al. 10.2166/wcc.2020.199
Saved (preprint)
Latest update: 13 Dec 2024
Short summary
Methane (CH4) emissions from hydroelectric reservoirs could represent a significant fraction of global CH4 emissions from inland waters and wetlands. The first quantification of emissions downstream of a subtropical reservoir shows that they contribute only 10 to 30 % of total CH4 emissions from the reservoir. This surprisingly low contribution is due to the seasonal reservoir overturn and the effect of the turbine on re-aerating the reservoir water column.
Methane (CH4) emissions from hydroelectric reservoirs could represent a significant fraction of...
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