Articles | Volume 14, issue 18
Biogeosciences, 14, 4375–4389, 2017
Biogeosciences, 14, 4375–4389, 2017

Research article 29 Sep 2017

Research article | 29 Sep 2017

Carbon degradation in agricultural soils flooded with seawater after managed coastal realignment

Kamilla S. Sjøgaard et al.

Related authors

Effects of temperature and organic pollution on nutrient cycling in marine sediments
C. Sanz-Lázaro, T. Valdemarsen, and M. Holmer
Biogeosciences, 12, 4565–4575,,, 2015
Organic N and P in eutrophic fjord sediments – rates of mineralization and consequences for internal nutrient loading
T. Valdemarsen, C. O. Quintana, M. R. Flindt, and E. Kristensen
Biogeosciences, 12, 1765–1779,,, 2015

Related subject area

Biogeochemistry: Land - Sea Coupling
Enrichment of trace metals from acid sulfate soils in sediments of the Kvarken Archipelago, eastern Gulf of Bothnia, Baltic Sea
Joonas J. Virtasalo, Peter Österholm, Aarno T. Kotilainen, and Mats E. Åström
Biogeosciences, 17, 6097–6113,,, 2020
Short summary
Spatio-temporal variations of lateral and atmospheric carbon fluxes from the Danube Delta
Marie-Sophie Maier, Cristian R. Teodoru, and Bernhard Wehrli
Biogeosciences Discuss.,,, 2020
Revised manuscript accepted for BG
Short summary
Technical note: Seamless gas measurements across Land-Ocean Aquatic Continuum – corrections and evaluation of sensor data for CO2, CH4 and O2 from field deployments in contrasting environments
Anna Canning, Arne Körtzinger, Peer Fietzek, and Gregor Rehder
Biogeosciences Discuss.,,, 2020
Revised manuscript accepted for BG
Short summary
Organic iron complexes enhance iron transport capacity along estuarine salinity gradients of Baltic estuaries
Simon David Herzog, Per Persson, Kristina Kvashnina, and Emma Sofia Kritzberg
Biogeosciences, 17, 331–344,,, 2020
Short summary
Particulate organic matter controls benthic microbial N retention and N removal in contrasting estuaries of the Baltic Sea
Ines Bartl, Dana Hellemann, Christophe Rabouille, Kirstin Schulz, Petra Tallberg, Susanna Hietanen, and Maren Voss
Biogeosciences, 16, 3543–3564,,, 2019
Short summary

Cited articles

Ardon, M., Morse, J. L., Colman, B. P., and Bernhardt, E. S.: Drought-induced saltwater incursion leads to increased wetland nitrogen export, Glob. Change Biol., 19, 2976–2985, 2013.
Ardon, M., Helton, A. M., and Bernhardt, E. S.: Drought and saltwater incursion synergistically reduce dissolved organic carbon export from coastal freshwater wetlands, Biogeochemistry, 127, 411–426, 2016.
Arndt, S., Jorgensen, 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, 2013.
Arnosti, C.: Microbial extracellular enzymes and the marine carbon cycle, Annual Review of Marine Science, 3, 401–425, 2011.
Arnosti, C., Repeta, D. J., and Blough, N. V.: Rapid bacterial degradation of polysaccharides in anoxic marine systems, Geochim. Cosmochim. Ac., 58, 2639–2652, 1994.
Short summary
Permanent flooding of low-lying coastal areas is a growing threat due to climate-change-related sea-level rise. To reduce coastal damage, buffer zones can be created by managed coastal realignment where existing dykes are breached and new dykes are built further inland. We studied the impacts on organic matter degradation in soils flooded with seawater by managed coastal realignment and suggest that most of the organic carbon present in coastal soils will be permanently preserved after flooding.
Final-revised paper