Articles | Volume 16, issue 2
Biogeosciences, 16, 383–408, 2019
Biogeosciences, 16, 383–408, 2019

Research article 24 Jan 2019

Research article | 24 Jan 2019

Early season N2O emissions under variable water management in rice systems: source-partitioning emissions using isotope ratios along a depth profile

Elizabeth Verhoeven et al.


Interactive discussion

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 (13 Nov 2018) by Andreas Richter
AR by Anna Wenzel on behalf of the Authors (15 Nov 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (17 Nov 2018) by Andreas Richter
RR by Nathaniel Ostrom (11 Dec 2018)
RR by Anonymous Referee #1 (17 Dec 2018)
ED: Publish subject to technical corrections (27 Dec 2018) by Andreas Richter
AR by Elizabeth Verhoeven on behalf of the Authors (28 Dec 2018)  Author's response    Manuscript
Short summary
This study utilized state-of-the-art measurements of nitrogen isotopes to evaluate nitrogen cycling and to assess the biological sources of the potent greenhouse gas, N2O, in response to water-saving practices in rice systems. Water-saving practices did emit more N2O, and high N2O production had a lower 15N isotope signature. Modeling and visual interpretation indicate that these emissions mostly came from denitrification or nitrifier denitrification, controlled upstream by nitrification rates.
Final-revised paper