Articles | Volume 14, issue 1
https://doi.org/10.5194/bg-14-241-2017
https://doi.org/10.5194/bg-14-241-2017
Research article
 | 
17 Jan 2017
Research article |  | 17 Jan 2017

Contributions of microbial activity and ash deposition to post-fire nitrogen availability in a pine savanna

Cari D. Ficken and Justin P. Wright

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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 (28 Oct 2016) by Andreas Ibrom
AR by Cari Ficken on behalf of the Authors (16 Nov 2016)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (17 Nov 2016) by Andreas Ibrom
RR by Anonymous Referee #2 (01 Dec 2016)
RR by Anonymous Referee #1 (08 Dec 2016)
ED: Publish subject to minor revisions (Editor review) (08 Dec 2016) by Andreas Ibrom
AR by Cari Ficken on behalf of the Authors (10 Dec 2016)  Author's response   Manuscript 
ED: Publish as is (19 Dec 2016) by Andreas Ibrom
AR by Cari Ficken on behalf of the Authors (29 Dec 2016)
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Short summary
To evaluate different mechanisms underlying nitrogen (N) pulses that occur following fires in pyrogenic US savannas, we coupled field measures of soil N cycling with soil N isotopic signatures. We found that neither ash deposition nor changes to microbial activity could account for observed N pulse. We hypothesize that changes to plant uptake may contribute to the post-fire N pulses. We encourage future work to explore the role of plant activity on temporal nutrient availability dynamics.
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