Articles | Volume 13, issue 19
https://doi.org/10.5194/bg-13-5649-2016
https://doi.org/10.5194/bg-13-5649-2016
Research article
 | 
11 Oct 2016
Research article |  | 11 Oct 2016

Nitrite consumption and associated isotope changes during a river flood event

Juliane Jacob, Tina Sanders, and Kirstin Dähnke

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (07 Jun 2016) by Helge Niemann
AR by Juliane Jacob on behalf of the Authors (13 Jul 2016)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (19 Jul 2016) by Helge Niemann
RR by Anonymous Referee #1 (04 Aug 2016)
RR by Caitlin Frame (08 Aug 2016)
ED: Reconsider after major revisions (17 Aug 2016) by Helge Niemann
AR by Juliane Jacob on behalf of the Authors (05 Sep 2016)  Author's response   Manuscript 
ED: Publish subject to minor revisions (Editor review) (19 Sep 2016) by Helge Niemann
AR by Juliane Jacob on behalf of the Authors (20 Sep 2016)  Author's response   Manuscript 
ED: Publish as is (26 Sep 2016) by Helge Niemann
AR by Juliane Jacob on behalf of the Authors (26 Sep 2016)
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Short summary
During a flood in the Elbe in June 2013, a unique co-occurrence of ammonium, nitrite and nitrate in the water column was found. SPM and nutrient concentrations as well as isotopes were analysed. We calculated an isotope effect 15ε of −10.0 ± 0.1 ‰ during net nitrite and 15ε of −4.0 ± 0.1 ‰ and 18ε of −5.3 ± 0.1 ‰ during net nitrate consumption. A simple box-model calculation results in combined riparian denitrification and 22 to 36 % nitrification.
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