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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 22
Biogeosciences, 15, 6979–6996, 2018
https://doi.org/10.5194/bg-15-6979-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 6979–6996, 2018
https://doi.org/10.5194/bg-15-6979-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 21 Nov 2018

Research article | 21 Nov 2018

Large variations in iron input to an oligotrophic Baltic Sea estuary: impact on sedimentary phosphorus burial

Wytze K. Lenstra et al.
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We show that burial rates of phosphorus (P) in an estuary in the northern Baltic Sea are very high. We demonstrate that at high sedimentation rates, P retention in the sediment is related to the formation of vivianite. With a reactive transport model, we assess the sensitivity of sedimentary vivianite formation. We suggest that enrichments of iron and P in the sediment are linked to periods of enhanced riverine input of Fe, which subsequently strongly enhances P burial in coastal sediments.
We show that burial rates of phosphorus (P) in an estuary in the northern Baltic Sea are very...
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