Articles | Volume 17, issue 1
https://doi.org/10.5194/bg-17-13-2020
© Author(s) 2020. 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-17-13-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Jan 2020
Research article |
| 02 Jan 2020
| 02 Jan 2020
Benthic alkalinity and dissolved inorganic carbon fluxes in the Rhône River prodelta generated by decoupled aerobic and anaerobic processes
Jens Rassmann
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,CEA-CNRS-UVSQ-Université Paris Saclay, 91198 Gif-sur-Yvette, France
Eryn M. Eitel
School of Earth and Atmospheric Sciences; Georgia Institute of Technology, Atlanta, 30332-0340 GA, USA
Bruno Lansard
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,CEA-CNRS-UVSQ-Université Paris Saclay, 91198 Gif-sur-Yvette, France
Cécile Cathalot
IFREMER, Laboratoire Environnement Profond, 29280 Plouzané, France
Christophe Brandily
IFREMER, Laboratoire Environnement Profond, 29280 Plouzané, France
Martial Taillefert
School of Earth and Atmospheric Sciences; Georgia Institute of Technology, Atlanta, 30332-0340 GA, USA
Christophe Rabouille
CORRESPONDING AUTHOR
Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL,CEA-CNRS-UVSQ-Université Paris Saclay, 91198 Gif-sur-Yvette, France
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28 citations as recorded by crossref.
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- Impacts of seasonal hypoxia on geochemistry, organic carbon oxidation, and nutrient release in the sediment of a semi-enclosed bay H. Jeong et al. 10.1016/j.marpolbul.2025.118069
- Disentangling artificial and natural benthic weathering in organic rich Baltic Sea sediments M. Fuhr et al. 10.3389/fclim.2023.1245580
- Greenhouse gas emissions (CO2 and CH4) and inorganic carbon behavior in an urban highly polluted tropical coastal lagoon (SE, Brazil) L. Cotovicz et al. 10.1007/s11356-021-13362-2
- Production and fluxes of inorganic carbon and alkalinity in a subarctic subterranean estuary G. Chaillou et al. 10.3389/fmars.2024.1323463
- Characterization of the benthic biogeochemical dynamics after flood events in the Rhône River prodelta: a data–model approach E. Ferreira et al. 10.5194/bg-21-711-2024
- The seasonal phases of an Arctic lagoon reveal the discontinuities of pH variability and CO2 flux at the air–sea interface C. Miller et al. 10.5194/bg-18-1203-2021
- FESDIA (v1.0): exploring temporal variations of sediment biogeochemistry under the influence of flood events using numerical modelling S. Nmor et al. 10.5194/gmd-15-7325-2022
- Early diagenetic behavior of trace metals along with estimation of their diffusive fluxes: Ecological risk assessment in pore water and sediment of Bizerte Lagoon, Tunisia H. Ben Mna et al. 10.1016/j.marpolbul.2022.114139
- Early Diagenesis in Sediments of the Venice Lagoon (Italy) and Its Relationship to Hypoxia D. Brigolin et al. 10.3389/fmars.2020.575547
- Eutrophication Amplifies the Diel Variability of Carbonate Chemistry in an Equatorial, Semi-Arid, and Negative Estuary L. Cotovicz et al. 10.3389/fmars.2022.767632
- Early Diagenesis in the Hypoxic and Acidified Zone of the Northern Gulf of Mexico: Is Organic Matter Recycling in Sediments Disconnected From the Water Column? C. Rabouille et al. 10.3389/fmars.2021.604330
- Benthic Organic Matter Transformation Drives pH and Carbonate Chemistry in Arctic Marine Sediments F. Freitas et al. 10.1029/2021GB007187
- Benthic alkalinity fluxes from coastal sediments of the Baltic and North seas: comparing approaches and identifying knowledge gaps B. Van Dam et al. 10.5194/bg-19-3775-2022
- Organic carbon remineralization rate in global marine sediments: A review Z. Chen et al. 10.1016/j.rsma.2021.102112
- Influence of manganese cycling on alkalinity in the redox stratified water column of Chesapeake Bay A. Thibault de Chanvalon et al. 10.5194/bg-20-3053-2023
- Diagenetic processes and nutrients diffusive fluxes at the sediment-water interface in the Bizerte Lagoon (North Tunisia) H. Ben Mna et al. 10.1016/j.jafrearsci.2022.104671
- Direct effects of ocean alkalinity enhancement in the Baltic Sea–results from in-silico experiments A. Anschütz et al. 10.3389/fclim.2025.1450468
- Dynamic of organic matter and meiofaunal community on a river-dominated shelf (Rhône prodelta, NW Mediterranean Sea): Responses to river regime A. Pruski et al. 10.1016/j.ecss.2021.107274
- A Unique Diel Pattern in Carbonate Chemistry in the Seagrass Meadows of Dongsha Island: The Enhancement of Metabolic Carbonate Dissolution in a Semienclosed Lagoon W. Chou et al. 10.3389/fmars.2021.717685
- Mobility of Al, Fe, Mn, Ti, and Organic Matter in Xingu River Sediments M. Lima et al. 10.25166/IJSRM/2022.22.4.1
- Spatial Variability of Organic Matter and Phosphorus Cycling in Rhône River Prodelta Sediments (NW Mediterranean Sea, France): a Model-Data Approach F. Ait Ballagh et al. 10.1007/s12237-020-00889-9
- IDENTIFICATION IN PORE WATERS OF RECYCLED SEDIMENT ORGANIC MATTER USING THE DUAL ISOTOPIC COMPOSITION OF CARBON (δ13C AND Δ14C): NEW DATA FROM THE CONTINENTAL SHELF INFLUENCED BY THE RHÔNE RIVER J. Dumoulin et al. 10.1017/RDC.2022.71
- The impact of intertidal areas on the carbonate system of the southern North Sea F. Schwichtenberg et al. 10.5194/bg-17-4223-2020
- New insights into large-scale trends of apparent organic matter reactivity in marine sediments and patterns of benthic carbon transformation F. Freitas et al. 10.5194/bg-18-4651-2021
- Benthic biogeochemical processes and fluxes in the hypoxic and acidified northern Gulf of Mexico (nGoM), part I: Carbonate dissolution from in situ microprofiles E. Ferreira et al. 10.1016/j.marchem.2025.104515
- Pathways of organic carbon mineralization and benthic fluxes of alkalinity and dissolved inorganic carbon in sediments of large inland seas: The Bohai Sea and North Yellow Sea J. Ren et al. 10.1016/j.jmarsys.2025.104082
- Mercury Mobility in Epibenthic Waters of a Deltaic Environment D. Cossa et al. 10.1029/2023JG007575
28 citations as recorded by crossref.
- Sediment oxygen consumption: Role in the global marine carbon cycle B. Jørgensen et al. 10.1016/j.earscirev.2022.103987
- Impacts of seasonal hypoxia on geochemistry, organic carbon oxidation, and nutrient release in the sediment of a semi-enclosed bay H. Jeong et al. 10.1016/j.marpolbul.2025.118069
- Disentangling artificial and natural benthic weathering in organic rich Baltic Sea sediments M. Fuhr et al. 10.3389/fclim.2023.1245580
- Greenhouse gas emissions (CO2 and CH4) and inorganic carbon behavior in an urban highly polluted tropical coastal lagoon (SE, Brazil) L. Cotovicz et al. 10.1007/s11356-021-13362-2
- Production and fluxes of inorganic carbon and alkalinity in a subarctic subterranean estuary G. Chaillou et al. 10.3389/fmars.2024.1323463
- Characterization of the benthic biogeochemical dynamics after flood events in the Rhône River prodelta: a data–model approach E. Ferreira et al. 10.5194/bg-21-711-2024
- The seasonal phases of an Arctic lagoon reveal the discontinuities of pH variability and CO2 flux at the air–sea interface C. Miller et al. 10.5194/bg-18-1203-2021
- FESDIA (v1.0): exploring temporal variations of sediment biogeochemistry under the influence of flood events using numerical modelling S. Nmor et al. 10.5194/gmd-15-7325-2022
- Early diagenetic behavior of trace metals along with estimation of their diffusive fluxes: Ecological risk assessment in pore water and sediment of Bizerte Lagoon, Tunisia H. Ben Mna et al. 10.1016/j.marpolbul.2022.114139
- Early Diagenesis in Sediments of the Venice Lagoon (Italy) and Its Relationship to Hypoxia D. Brigolin et al. 10.3389/fmars.2020.575547
- Eutrophication Amplifies the Diel Variability of Carbonate Chemistry in an Equatorial, Semi-Arid, and Negative Estuary L. Cotovicz et al. 10.3389/fmars.2022.767632
- Early Diagenesis in the Hypoxic and Acidified Zone of the Northern Gulf of Mexico: Is Organic Matter Recycling in Sediments Disconnected From the Water Column? C. Rabouille et al. 10.3389/fmars.2021.604330
- Benthic Organic Matter Transformation Drives pH and Carbonate Chemistry in Arctic Marine Sediments F. Freitas et al. 10.1029/2021GB007187
- Benthic alkalinity fluxes from coastal sediments of the Baltic and North seas: comparing approaches and identifying knowledge gaps B. Van Dam et al. 10.5194/bg-19-3775-2022
- Organic carbon remineralization rate in global marine sediments: A review Z. Chen et al. 10.1016/j.rsma.2021.102112
- Influence of manganese cycling on alkalinity in the redox stratified water column of Chesapeake Bay A. Thibault de Chanvalon et al. 10.5194/bg-20-3053-2023
- Diagenetic processes and nutrients diffusive fluxes at the sediment-water interface in the Bizerte Lagoon (North Tunisia) H. Ben Mna et al. 10.1016/j.jafrearsci.2022.104671
- Direct effects of ocean alkalinity enhancement in the Baltic Sea–results from in-silico experiments A. Anschütz et al. 10.3389/fclim.2025.1450468
- Dynamic of organic matter and meiofaunal community on a river-dominated shelf (Rhône prodelta, NW Mediterranean Sea): Responses to river regime A. Pruski et al. 10.1016/j.ecss.2021.107274
- A Unique Diel Pattern in Carbonate Chemistry in the Seagrass Meadows of Dongsha Island: The Enhancement of Metabolic Carbonate Dissolution in a Semienclosed Lagoon W. Chou et al. 10.3389/fmars.2021.717685
- Mobility of Al, Fe, Mn, Ti, and Organic Matter in Xingu River Sediments M. Lima et al. 10.25166/IJSRM/2022.22.4.1
- Spatial Variability of Organic Matter and Phosphorus Cycling in Rhône River Prodelta Sediments (NW Mediterranean Sea, France): a Model-Data Approach F. Ait Ballagh et al. 10.1007/s12237-020-00889-9
- IDENTIFICATION IN PORE WATERS OF RECYCLED SEDIMENT ORGANIC MATTER USING THE DUAL ISOTOPIC COMPOSITION OF CARBON (δ13C AND Δ14C): NEW DATA FROM THE CONTINENTAL SHELF INFLUENCED BY THE RHÔNE RIVER J. Dumoulin et al. 10.1017/RDC.2022.71
- The impact of intertidal areas on the carbonate system of the southern North Sea F. Schwichtenberg et al. 10.5194/bg-17-4223-2020
- New insights into large-scale trends of apparent organic matter reactivity in marine sediments and patterns of benthic carbon transformation F. Freitas et al. 10.5194/bg-18-4651-2021
- Benthic biogeochemical processes and fluxes in the hypoxic and acidified northern Gulf of Mexico (nGoM), part I: Carbonate dissolution from in situ microprofiles E. Ferreira et al. 10.1016/j.marchem.2025.104515
- Pathways of organic carbon mineralization and benthic fluxes of alkalinity and dissolved inorganic carbon in sediments of large inland seas: The Bohai Sea and North Yellow Sea J. Ren et al. 10.1016/j.jmarsys.2025.104082
- Mercury Mobility in Epibenthic Waters of a Deltaic Environment D. Cossa et al. 10.1029/2023JG007575
Latest update: 03 Jul 2025
Short summary
In this paper, we use a large set of measurements made using in situ and lab techniques to elucidate the cause of dissolved inorganic carbon fluxes in sediments from the Rhône delta and its companion compound alkalinity, which carries the absorption capacity of coastal waters with respect to atmospheric CO2. We show that sediment processes (sulfate reduction, FeS precipitation and accumulation) are crucial in generating the alkalinity fluxes observed in this study by in situ incubation chambers.
In this paper, we use a large set of measurements made using in situ and lab techniques to...
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