Articles | Volume 16, issue 23
https://doi.org/10.5194/bg-16-4705-2019
© Author(s) 2019. 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-16-4705-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Dec 2019
Research article |
| 10 Dec 2019
| 10 Dec 2019
Direct O2 control on the partitioning between denitrification and dissimilatory nitrate reduction to ammonium in lake sediments
Adeline N. Y. Cojean
CORRESPONDING AUTHOR
Aquatic and Stable Isotope Biogeochemistry, University of Basel,
Bernoullistrasse 30, 4056 Basel, Switzerland
now at: Centre for Hydrogeology and Geothermics (CHYN), University of
Neuchâtel, Rue Emile Argand 11, 2000 Neuchâtel, Switzerland
Jakob Zopfi
Aquatic and Stable Isotope Biogeochemistry, University of Basel,
Bernoullistrasse 30, 4056 Basel, Switzerland
Alan Gerster
Aquatic and Stable Isotope Biogeochemistry, University of Basel,
Bernoullistrasse 30, 4056 Basel, Switzerland
Claudia Frey
Aquatic and Stable Isotope Biogeochemistry, University of Basel,
Bernoullistrasse 30, 4056 Basel, Switzerland
Fabio Lepori
Institute of Earth Science, Scuola Universitaria Professionale della
Svizzera Italiana (SUPSI), Trevano, 6952 Canobbio, Switzerland
Moritz F. Lehmann
Aquatic and Stable Isotope Biogeochemistry, University of Basel,
Bernoullistrasse 30, 4056 Basel, Switzerland
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Short summary
Our results demonstrate the importance of oxygen in regulating the fate of nitrogen (N) in the sediments of Lake Lugano south basin, Switzerland. Hence, our study suggests that, by changing oxygen concentration in bottom waters, the seasonal water column turnover may significantly regulate the partitioning between N removal and N recycling in surface sediments, and it is likely that a similar pattern can be expected in a wide range of environments.
Our results demonstrate the importance of oxygen in regulating the fate of nitrogen (N) in the...
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