Articles | Volume 23, issue 8
https://doi.org/10.5194/bg-23-2865-2026
© Author(s) 2026. 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-23-2865-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Apr 2026
Research article |
| 27 Apr 2026
| 27 Apr 2026
Carbon dioxide release driven by organic carbon in minerogenic salt marshes
Nora Kainz
Department of Geosciences, University of Tübingen, Schnarrenbergstraße 94-96, 72076 Tübingen, Germany
Franziska Raab
Department of Geosciences, University of Tübingen, Schnarrenbergstraße 94-96, 72076 Tübingen, Germany
L. Joëlle Kubeneck
Department of Environmental Systems Science, ETH Zürich, CHN, Universitätstrasse 16, 8092 Zürich, Switzerland
Department of Microbiology, Radboud Institute for Biological and Environmental Sciences, Radboud University, 6525 AJ Nijmegen, the Netherlands
TNO Geological Survey of the Netherlands, P.O. Box 80015, 3508 TA Utrecht, the Netherlands
Ruben Kretzschmar
Department of Environmental Systems Science, ETH Zürich, CHN, Universitätstrasse 16, 8092 Zürich, Switzerland
Andreas Kappler
Department of Geosciences, University of Tübingen, Schnarrenbergstraße 94-96, 72076 Tübingen, Germany
Department of Geosciences, University of Tübingen, Schnarrenbergstraße 94-96, 72076 Tübingen, Germany
Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland
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EGUsphere, https://doi.org/10.5194/egusphere-2025-2577, https://doi.org/10.5194/egusphere-2025-2577, 2025
Short summary
Short summary
Climate change enhances the occurrence of summer droughts and heavy rainfall events in Central Europe. We investigated the response of inorganic nitrogen cycling, redox conditions and microbial community composition to an artificial heavy rain event following a drought in shallow arable soil. Redox conditions changed fast with the hydraulic event triggering nitrogen transport and turnover. Microbial communities reacted moderately in terms of composition but exhibited enzyme activity changes.
Cited articles
Alongi, D. M.: Carbon balance in salt marsh and mangrove ecosystems: a global synthesis, J. Mar. Sci. Eng., 8, 767, https://doi.org/10.3390/jmse8100767, 2020.
Arndt, S., Jørgensen, B. B., LaRowe, D. E., Middelburg, J. J., Pancost, R. D., and Regnier, P.: Quantifying the degradation of organic matter in marine sediments: A review and synthesis, Earth-Sci. Rev., 123, 53–86, https://doi.org/10.1016/j.earscirev.2013.02.008, 2013.
Bosselmann, K., Böttcher, M. E., Billerbeck, M., Walpersdorf, E., Theune, A., Huettel, M., and Jørgensen, B. B.: Iron-Sulfur-Manganese Dynamics in Intertidal Surface Sediments of the North Sea, Berichte – Forschungszentrum Terramare, 12, 32–35, 2003.
Boye, K., Noël, V., Tfaily, M. M., Bone, S. E., Williams, K. H., Bargar, J. R., and Fendorf, S.: Thermodynamically controlled preservation of organic carbon in floodplains, Nat. Geosci., 10, 415–419, https://doi.org/10.1038/ngeo2940, 2017.
Brown, C. J.: Simulated biogeochemical effects of seawater restoration on diked salt marshes, Cape Cod National Seashore, Massachusetts, US, Soil Syst., 9, 89, https://doi.org/10.3390/soilsystems9030089, 2025.
BSH: Federal Maritime and Hydrographic Agency, Gezeiten [dataset]. Bundesamt für Seeschifffahrt und Hydrographie, Hamburg and Rostock, Germany, https://gezeiten.bsh.de/friedrichskoog_hafen_aussenpegel?niveau=nhn (last access: 25 April 2025), 2025.
Burton, E. D., Bush, R. T., Sullivan, L. A., and Mitchell, D. R. G.: Reductive transformation of iron and sulfur in schwertmannite-rich accumulations associated with acidified coastal lowlands, Geochim. Cosmochim. Acta, 71, 4456–4473, https://doi.org/10.1016/j.gca.2007.07.007, 2007.
Capooci, M., Seyfferth, A. L., Tobias, C., Wozniak, A. S., Hedgpeth, A., Bowen, M., Biddle, J. F., McFarlane, K. J., and Vargas, R.: High methane concentrations in tidal salt marsh soils: Where does the methane go?, Glob. Change Biol., 30, e17050, https://doi.org/10.1111/gcb.17050, 2024.
Cline, J. D.: Spectrophotometric determination of hydrogen sulfide in natural waters, Limnol. Oceanogr., 14, 454–458, https://doi.org/10.4319/lo.1969.14.3.0454, 1969.
Coates, J. D., Phillips, E. J., Lonergan, D. J., Jenter, H., and Lovley, D. R.: Isolation of Geobacter species from diverse sedimentary environments, Appl. Environ. Microbiol., 62, 1531–1536, https://doi.org/10.1128/aem.62.5.1531-1536.1996, 1996.
Common Wadden Sea Secretariat: Wadden Sea Quality Status Report: Introduction (1.01), Common Wadden Sea Secretariat, Zenodo, https://doi.org/10.5281/ZENODO.15195139, 2017.
Cornwell, J. C. and Morse, J. W.: The characterization of iron sulfide minerals in anoxic marine sediments, Mar. Chem., 22, 193–206, https://doi.org/10.1016/0304-4203(87)90008-9, 1987.
de Beer, D., Wenzhöfer, F., Ferdelman, T. G., Boehme, S. E., Huettel, M., Van Beusekom, J. E. E., Böttcher, M. E., Musat, N., and Dubilier, N.: Transport and mineralization rates in North Sea sandy intertidal sediments, Sylt-Rømø Basin, Wadden Sea, Limnol. Oceanogr., 50, 113–127, https://doi.org/10.4319/lo.2005.50.1.0113, 2005.
de Vlas, J., Mandema, F., Nolte, S., van Klink, R., and Esselink, P.: Nature conservation of salt marshes. The influence of grazing on biodiversity, PUCCIMAR report 09, It Fryske Gea, Olterterp, PUCCIMAR Ecological Research and Consultancy, Vries, the Netherlands, 2013.
Duarte, C. M., Middelburg, J. J., and Caraco, N.: Major role of marine vegetation on the oceanic carbon cycle, Biogeosciences, 2, 1–8, https://doi.org/10.5194/bg-2-1-2005, 2005.
Duarte, C. M., Dennison, W. C., Orth, R. J. W., and Carruthers, T. J. B.: The charisma of coastal ecosystems: Addressing the imbalance, Estuar. Coast, 31, 233–238, https://doi.org/10.1007/s12237-008-9038-7, 2008.
Duarte, C. M., Losada, I. J., Hendriks, I. E., Mazarrasa, I., and Marbà, N.: The role of coastal plant communities for climate change mitigation and adaptation, Nat. Clim. Change, 3, 961–968, https://doi.org/10.1038/nclimate1970, 2013.
Esselink, P., van Duin, W. E., Bunje, J., Cremer, J., Folmer, E., Frikke, J., Glahn, M., de Groot, A. V., Hecker, N., Hellwig, U., Jensen, K., Körber, P., Petersen, J., and Stock, M.: Wadden Sea Quality Status Report: Salt marshes (1.01), Common Wadden Sea Secretariat, Zenodo [report], https://doi.org/10.5281/zenodo.15196554, 2017.
Gao, S.: Chapter 10: Geomorphology and Sedimentology of Tidal Flats, in: Coastal Wetlands (Second Edition), Elsevier, 359–381, https://doi.org/10.1016/B978-0-444-63893-9.00010-1, 2019.
Gribsholt, B. and Kristensen, E.: Benthic metabolism and sulfur cycling along an inundation gradient in a tidal Spartina anglica salt marsh, Limnol. Oceanogr., 48, 2151–2162, https://doi.org/10.4319/lo.2003.48.6.2151, 2003.
Gunina, A. and Kuzyakov, Y.: From energy to (soil organic) matter, Glob. Change Biol., 28, 2169–2182, https://doi.org/10.1111/gcb.16071, 2022.
Hansen, K., Butzeck, C., Eschenbach, A., Gröngröft, A., Jensen, K., and Pfeiffer, E.-M.: Factors influencing the organic carbon pools in tidal marsh soils of the Elbe estuary (Germany), J. Soils Sediment., 17, 47–60, https://doi.org/10.1007/s11368-016-1500-8, 2017.
Heron, G., Crouzet, C., Bourg, A. C. M., and Christensen, T. H.: Speciation of Fe(II) and Fe(III) in contaminated aquifer sediments using chemical extraction techniques, Environ. Sci. Technol., 28, 1698–1705, https://doi.org/10.1021/es00058a023, 1994.
Howard, J., Sutton-Grier, A. E., Smart, L. S., Lopes, C. C., Hamilton, J., Kleypas, J., Simpson, S., McGowan, J., Pessarrodona, A., Alleway, H. K., and Landis, E.: Blue carbon pathways for climate mitigation: Known, emerging and unlikely, Mar. Policy, 156, 105788, https://doi.org/10.1016/j.marpol.2023.105788, 2023.
Huettel, M., Berg, P., and Kostka, J. E.: Benthic exchange and biogeochemical cycling in permeable sediments, Annu. Rev. Mar. Sci., 6, 23–51, https://doi.org/10.1146/annurev-marine-051413-012706, 2014.
Hyun, J.-H., Smith, A. C., and Kostka, J. E.: Relative contributions of sulfate- and iron(III) reduction to organic matter mineralization and process controls in contrasting habitats of the Georgia saltmarsh, Appl. Geochem., 22, 2637–2651, https://doi.org/10.1016/j.apgeochem.2007.06.005, 2007.
Jørgensen, B. B., Findlay, A. J., and Pellerin, A.: The biogeochemical sulfur cycle of marine sediments, Front. Microbiol., 10, 849, https://doi.org/10.3389/fmicb.2019.00849, 2019.
Kahle, M., Kleber, M., and Jahn, R.: Retention of dissolved organic matter by illitic soils and clay fractions: influence of mineral phase properties, J. Plant Nutr. Soil Sci., 166, 737–741, https://doi.org/10.1002/jpln.200321125, 2003.
Kainz, N., Raab, F., Kubeneck, L. J., Kretzschmar, R., Kappler, A., and Joshi, P.: Carbon dioxide release driven by organic carbon in minerogenic salt marshes, Zenodo [data set], https://doi.org/10.5281/zenodo.19032950, 2025.
Kaiser, K. and Guggenberger, G.: The role of DOM sorption to mineral surfaces in the preservation of organic matter in soils, Org. Geochem., 31, 711–725, https://doi.org/10.1016/S0146-6380(00)00046-2, 2000.
Kleber, M., Bourg, I. C., Coward, E. K., Hansel, C. M., Myneni, S. C. B., and Nunan, N.: Dynamic interactions at the mineral–organic matter interface, Nat. Rev. Earth Environ., 2, 402–421, https://doi.org/10.1038/s43017-021-00162-y, 2021.
Koop-Jakobsen, K., Fischer, J., and Wenzhöfer, F.: Survey of sediment oxygenation in rhizospheres of the saltmarsh grass – Spartina anglica, Sci. Total Environ., 589, 191–199, https://doi.org/10.1016/j.scitotenv.2017.02.147, 2017.
Kostka, J. E., Roychoudhury, A., and Cappellen, V.: Rates and controls of anaerobic microbial respiration across spatial and temporal gradients in saltmarsh sediments, Biogeochemistry, 60, 49–76, https://doi.org/10.1023/A:1016525216426, 2002a.
Kostka, J. E., Gribsholt, B., Petrie, E., Dalton, D., Skelton, H., and Kristensen, E.: The rates and pathways of carbon oxidation in bioturbated saltmarsh sediments, Limnol. Oceanogr., 47, 230–240, https://doi.org/10.4319/lo.2002.47.1.0230, 2002b.
Kubeneck, L. J., Notini, L., Rothwell, K. A., Fantappiè, G., Huthwelker, T., ThomasArrigo, L. K., and Kretzschmar, R.: Transformation of vivianite in intertidal sediments with contrasting sulfide conditions, Geochim. Cosmochim. Acta, 370, 173–187, https://doi.org/10.1016/j.gca.2024.01.020, 2024.
Kubeneck, L. J., Rothwell, K. A., Notini, L., ThomasArrigo, L. K., Schulz, K., Fantappiè, G., Joshi, P., Huthwelker, T., and Kretzschmar, R.: In Situ vivianite formation in intertidal sediments: ferrihydrite-adsorbed P triggers vivianite formation, Environ. Sci. Technol., 59, 523–532, https://doi.org/10.1021/acs.est.4c10710, 2025.
Kvale, E. P.: The origin of neap–spring tidal cycles, Mar. Geol., 235, 5–18, https://doi.org/10.1016/j.margeo.2006.10.001, 2006.
La, W., Han, X., Liu, C.-Q., Ding, H., Liu, M., Sun, F., Li, S., and Lang, Y.: Sulfate concentrations affect sulfate reduction pathways and methane consumption in coastal wetlands, Water Res., 217, 118441, https://doi.org/10.1016/j.watres.2022.118441, 2022.
LaRowe, D. E. and Van Cappellen, P.: Degradation of natural organic matter: A thermodynamic analysis, Geochim. Cosmochim. Acta, 75, 2030–2042, https://doi.org/10.1016/j.gca.2011.01.020, 2011.
Lipczynska-Kochany, E.: Humic substances, their microbial interactions and effects on biological transformations of organic pollutants in water and soil: A review, Chemosphere, 202, 420–437, https://doi.org/10.1016/j.chemosphere.2018.03.104, 2018.
Llobet-Brossa, E., Rabus, R., Böttcher, M., Könneke, M., Finke, N., Schramm, A., Meyer, R., Grötzschel, S., Rosselló-Mora, R., and Amann, R.: Community structure and activity of sulfate-reducing bacteria in an intertidal surface sediment: a multi-method approach, Aquat. Microb. Ecol., 29, 211–226, https://doi.org/10.3354/ame029211, 2002.
Logemann, E. L., Goesele, C., Jensen, K., and Mueller, P.: Soil organic carbon stocks of German salt marshes: a comparative study along low- and high-energy coastlines, J. Geophys. Res.-Biogeo., 130, e2025JG008797, https://doi.org/10.1029/2025JG008797, 2025.
Lowe, K. L., Dichristina, T. J., Roychoudhury, A. N., and Van Cappellen, P.: Microbiological and geochemical characterization of microbial Fe(III) reduction in salt marsh sediments, Geomicrobiol. J., 17, 163–178, https://doi.org/10.1080/01490450050023836, 2000.
Lueder, U., Maisch, M., Laufer, K., Jørgensen, B. B., Kappler, A., and Schmidt, C.: Influence of physical perturbation on Fe(II) supply in coastal marine sediments, Environ. Sci. Technol., 54, 3209–3218, https://doi.org/10.1021/acs.est.9b06278, 2020.
Lueders, T., Manefield, M., and Friedrich, M. W.: Enhanced sensitivity of DNA- and rRNA-based stable isotope probing by fractionation and quantitative analysis of isopycnic centrifugation gradients, Environ. Microbiol., 6, 73–78, https://doi.org/10.1046/j.1462-2920.2003.00536.x, 2004.
Lv, J., Zhang, S., Wang, S., Luo, L., Cao, D., and Christie, P.: Molecular-scale investigation with ESI-FT-ICR-MS on fractionation of dissolved organic matter induced by adsorption on iron oxyhydroxides, Environ. Sci. Technol., 50, 2328–2336, https://doi.org/10.1021/acs.est.5b04996, 2016.
Maricle, B. R. and Lee, R. W.: Aerenchyma development and oxygen transport in the estuarine cordgrasses Spartina alterniflora and S. anglica, Aquat. Bot., 74, 109–120, https://doi.org/10.1016/S0304-3770(02)00051-7, 2002.
Martens, C. S. and Berner, R. A.: Methane Production in the Interstitial Waters of Sulfate-Depleted Marine Sediments, Science, 185, 1167–1169, 1974.
Mcleod, E., Chmura, G. L., Bouillon, S., Salm, R., Björk, M., Duarte, C. M., Lovelock, C. E., Schlesinger, W. H., and Silliman, B. R.: A blueprint for blue carbon: Toward an improved understanding of the role of vegetated coastal habitats in sequestering CO2, Front. Ecol. Environ., 9, 552–560, https://doi.org/10.1890/110004, 2011.
Moeslundi, L., Thamdrup, B., and Barker Jørgensen, B.: Sulfur and iron cycling in a coastal sediment: Radiotracer studies and seasonal dynamics, Biogeochemistry, 27, 129–152, https://doi.org/10.1007/BF00002815, 1994.
Mueller, P., Ladiges, N., Jack, A., Schmiedl, G., Kutzbach, L., Jensen, K., and Nolte, S.: Assessing the long-term carbon-sequestration potential of the semi-natural salt marshes in the European Wadden Sea, Ecosphere, 10, e02556, https://doi.org/10.1002/ecs2.2556, 2019.
Mueller, P., Kutzbach, L., Mozdzer, T. J., Jespersen, E., Barber, D. C., and Eller, F.: Minerogenic salt marshes can function as important inorganic carbon stores, Limnol. Oceanogr., 68, 942–952, https://doi.org/10.1002/lno.12322, 2023.
Nellemann, C., Corcoran, E., Duarte, C. M., Valdés, L., De Young, C., Fonseca, L., and Grimsditch, G.: Blue Carbon – The Role of Healthy Oceans in Binding Carbon, UNEP, 80 pp., ISBN: 978-82-7701-060-1, 2009.
Nolte, S., Koppenaal, E. C., Esselink, P., Dijkema, K. S., Schuerch, M., De Groot, A. V., Bakker, J. P., and Temmerman, S.: Measuring sedimentation in tidal marshes: a review on methods and their applicability in biogeomorphological studies, J. Coastal Conserv., 17, 301–325, https://doi.org/10.1007/s11852-013-0238-3, 2013.
Novák, V. and Hlaváèiková, H.: Soil-Water Movement in Water-Saturated Capillary Porous Media, in: Applied Soil Hydrology, Vol. 32, Springer, Cham, 97–117, https://doi.org/10.1007/978-3-030-01806-1_8, 2019.
Pendleton, L., Donato, D. C., Murray, B. C., Crooks, S., Jenkins, W. A., Sifleet, S., Craft, C., Fourqurean, J. W., Kauffman, J. B., Marbà, N., Megonigal, P., Pidgeon, E., Herr, D., Gordon, D., and Baldera, A.: Estimating global “blue carbon” emissions from conversion and degradation of vegetated coastal ecosystems, PLoS ONE, 7, e43542, https://doi.org/10.1371/journal.pone.0043542, 2012.
Petro, C., Zäncker, B., Starnawski, P., Jochum, L. M., Ferdelman, T. G., Jørgensen, B. B., Røy, H., Kjeldsen, K. U., and Schramm, A.: Marine deep biosphere microbial communities assemble in near-surface sediments in Aarhus Bay, Front. Microbiol., 10, 758, https://doi.org/10.3389/fmicb.2019.00758, 2019.
R Core Team: R: A Language and Environment for Statistical Computing, R Version 4.4.3, R Foundation for Statistical Computing, Vienna, Austria, https://www.R-project.org/ (last access: 1 March 2025), 2025.
Regnier, P., Arndt, S., Goossens, N., Volta, C., Laruelle, G. G., Lauerwald, R., and Hartmann, J.: Modelling estuarine biogeochemical dynamics: from the local to the global scale, Aquat. Geochem., 19, 591–626, https://doi.org/10.1007/s10498-013-9218-3, 2013.
Revsbech, N. P.: An oxygen microsensor with a guard cathode, Limnol. Oceanogr., 34, 474–478, https://doi.org/10.4319/lo.1989.34.2.0474, 1989.
Røy, H., Lee, J. S., Jansen, S., and De Beer, D.: Tide-driven deep pore-water flow in intertidal sand flats, Limnol. Oceanogr., 53, 1521–1530, https://doi.org/10.4319/lo.2008.53.4.1521, 2008.
Schlesinger, W. H. and Bernhardt, E. S.: Chapter 5: The Biosphere: The Carbon Cycle of Terrestrial Ecosystems, in: Biogeochemistry, 3rd Edn., Elsevier, Waltham, MA, USA, 135–172, https://doi.org/10.1016/B978-0-12-385874-0.00005-4, 2013a.
Schlesinger, W. H. and Bernhardt, E. S.: Chap. 7: Wetland Ecosystems, in: Biogeochemistry, 3rd Edn., Elsevier, Waltham, MA, USA, 233–274, https://doi.org/10.1016/B978-0-12-385874-0.00007-8, 2013b.
Seyfferth, A. L., Bothfeld, F., Vargas, R., Stuckey, J. W., Wang, J., Kearns, K., Michael, H. A., Guimond, J., Yu, X., and Sparks, D. L.: Spatial and temporal heterogeneity of geochemical controls on carbon cycling in a tidal salt marsh, Geochim. Cosmochim. Acta, 282, 1–18, https://doi.org/10.1016/j.gca.2020.05.013, 2020.
Stookey, L. L.: Ferrozine-a new spectrophotometric reagent for iron, Anal. Chem., 42, 779–781, https://doi.org/10.1021/ac60289a016, 1970.
Tan, J. H. Y., Mosley, L. M., and Wong, V. N. L.: A review of Fe–S–C dynamics in Blue Carbon environments: potential influence of coastal acid sulfate soils, Eur. J. Soil Sci., 76, e70047, https://doi.org/10.1111/ejss.70047, 2025.
Temmink, R., J. M., Lamers, L. P. M., Angelini, C., Bouma, T. J., Fritz, C., van de Koppel, J., Lexmond, R., Rietkerk, M., Silliman, B. R., Joosten, H., and van der Heide, T.: Recovering wetland biogeomorphic feedbacks to restore the world's biotic carbon hotspots, Science, 376, 1–7, https://doi.org/10.1126/science.abn1479, 2022.
Tobias, C. and Neubauer, S. C.: Salt Marsh Biogeochemistry – An Overview, in: Coastal Wetlands: An Integrated Ecosystem Approach, Chap.16, Elsevier, 539–596, https://doi.org/10.1016/B978-0-444-63893-9.00016-2, 2019.
Trifunovic, B., Vázquez-Lule, A., Capooci, M., Seyfferth, A. L., Moffat, C., and Vargas, R.: Carbon dioxide and methane emissions from a temperate salt marsh tidal creek, J. Geophys. Res.-Biogeo., 125, e2019JG005558, https://doi.org/10.1029/2019JG005558, 2020.
van Beusekom, J. E. E.: A historic perspective on Wadden Sea eutrophication, Helgol. Mar. Res., 59, 45–54, https://doi.org/10.1007/s10152-004-0206-2, 2005.
Van de Broek, M., Vandendriessche, C., Poppelmonde, D., Merckx, R., Temmerman, S., and Govers, G.: Long-term organic carbon sequestration in tidal marsh sediments is dominated by old-aged allochthonous inputs in a macrotidal estuary, Glob. Change Biol., 24, 2498–2512, https://doi.org/10.1111/gcb.14089, 2018.
van Erk, M. R., Bourceau, O. M., Moncada, C., Basu, S., Hansel, C. M., and De Beer, D.: Reactive oxygen species affect the potential for mineralization processes in permeable intertidal flats, Nat. Commun., 14, 938, https://doi.org/10.1038/s41467-023-35818-4, 2023.
Voggenreiter, E., Schmitt-Kopplin, P., Thomas Arrigo, L., Bryce, C., Kappler, A., and Joshi, P.: Emerging investigator series: preferential adsorption and coprecipitation of permafrost organic matter with poorly crystalline iron minerals, Environ. Sci. Process. Impacts, 26, 1322–1335, https://doi.org/10.1039/D4EM00241E, 2024.
Wang, J., Hua, M., Cai, C., Hu, J., Wang, J., Yang, H., Ma, F., Qian, H., Zheng, P., and Hu, B.: Spatial-temporal pattern of sulfate-dependent anaerobic methane oxidation in an intertidal zone of the East China Sea, Appl.Environ. Microbiol., 85, e02638-18, https://doi.org/10.1128/AEM.02638-18, 2019.
Woth, K., Weisse, R., and Von Storch, H.: Climate change and North Sea storm surge extremes: an ensemble study of storm surge extremes expected in a changed climate projected by four different regional climate models, Ocean Dyn., 56, 3–15, https://doi.org/10.1007/s10236-005-0024-3, 2006.
Wu, C. S., Røy, H., and De Beer, D.: Methanogenesis in sediments of an intertidal sand flat in the Wadden Sea, Estuar. Coast. Shelf Sci., 164, 39–45, https://doi.org/10.1016/j.ecss.2015.06.031, 2015.
Zhou, Z., Meng, H., Liu, Y., Gu, J.-D., and Li, M.: Stratified bacterial and archaeal community in mangrove and intertidal wetland mudflats revealed by high throughput 16S rRNA gene sequencing, Front Microbiol., 8, 2148, https://doi.org/10.3389/fmicb.2017.02148, 2017.
Short summary
Salt marshes, a type of coastal wetland, store “blue” carbon. At the same time, these ecosystems can release the greenhouse gases carbon dioxide (CO2) and methane (CH4) via microbial decomposition of stored carbon. In this study, we studied what drives the release of CO2 from mineral-rich salt marshes and found that the quantity and form of carbon are the most important factors. Our results improve understanding of salt marsh carbon cycling, allowing better prediction of future changes.
Salt marshes, a type of coastal wetland, store “blue” carbon. At the same time, these ecosystems...
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