Articles | Volume 18, issue 9
https://doi.org/10.5194/bg-18-2981-2021
© 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-18-2981-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 May 2021
Research article |
| 17 May 2021
| 17 May 2021
Deep-water inflow event increases sedimentary phosphorus release on a multi-year scale
Department of Marine Sciences, University of Gothenburg, Box 461, 405
30 Gothenburg, Sweden
Sebastiaan J. van de Velde
Department of Earth and Planetary Sciences, University of California,
Riverside, CA 92521, USA
Bgeosys, Geoscience, Environment & Society, Université Libre de
Bruxelles, 1050 Brussels, Belgium
Operational Directorate Natural Environment, Royal Belgian Institute
of Natural Sciences, 1000 Brussels, Belgium
Mikhail Kononets
Department of Marine Sciences, University of Gothenburg, Box 461, 405
30 Gothenburg, Sweden
Mingyue Luo
Department of Analytical, Environmental and Geo-Chemistry, Vrije
Universiteit Brussel, 1050 Brussels, Belgium
Elin Almroth-Rosell
Oceanographic Research, Swedish Meteorological and Hydrological
Institute, 426 71 Västra Frölunda, Sweden
Per O. J. Hall
Department of Marine Sciences, University of Gothenburg, Box 461, 405
30 Gothenburg, Sweden
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Short summary
Sediments in oxygen-depleted ocean areas release high amounts of phosphorus, feeding algae that consume oxygen upon degradation, leading to further phosphorus release. Oxygenation is thought to trap phosphorus in the sediment and break this feedback. We studied the sediment phosphorus cycle in a previously anoxic area after an inflow of oxic water. Surprisingly, the sediment phosphorus release increased, showing that feedbacks between phosphorus release and oxygen depletion can be hard to break.
Sediments in oxygen-depleted ocean areas release high amounts of phosphorus, feeding algae that...
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