Articles | Volume 17, issue 22
Biogeosciences, 17, 5513–5537, 2020
https://doi.org/10.5194/bg-17-5513-2020
Biogeosciences, 17, 5513–5537, 2020
https://doi.org/10.5194/bg-17-5513-2020

Research article 14 Nov 2020

Research article | 14 Nov 2020

N2O isotope approaches for source partitioning of N2O production and estimation of N2O reduction – validation with the 15N gas-flux method in laboratory and field studies

Dominika Lewicka-Szczebak et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (23 Sep 2020) by Perran Cook
AR by Dominika Lewicka-Szczebak on behalf of the Authors (23 Sep 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (05 Oct 2020) by Perran Cook
AR by Dominika Lewicka-Szczebak on behalf of the Authors (05 Oct 2020)  Author's response    Manuscript
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Short summary
We present the first validation of N2O isotopic approaches for estimating N2O source pathways and N2O reduction. These approaches are widely used for tracing soil nitrogen cycling, but the results of these estimations are very uncertain. Here we report the results from parallel treatments allowing for precise validation of these approaches, and we propose the best strategies for results interpretation, including the new idea of an isotope model integrating three isotopic signatures of N2O.
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