Articles | Volume 17, issue 18
Biogeosciences, 17, 4509–4522, 2020
https://doi.org/10.5194/bg-17-4509-2020
Biogeosciences, 17, 4509–4522, 2020
https://doi.org/10.5194/bg-17-4509-2020

Research article 15 Sep 2020

Research article | 15 Sep 2020

Century-scale wood nitrogen isotope trajectories from an oak savanna with variable fire frequencies

Matthew L. Trumper 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) (06 Jul 2020) by Edzo Veldkamp
AR by Matthew Trumper on behalf of the Authors (19 Jul 2020)  Author's response    Manuscript
ED: Publish as is (31 Jul 2020) by Edzo Veldkamp
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Short summary
We developed century-scale records of wood nitrogen isotopes (δ15N) from 16 trees across a long-term savanna fire experiment. Results show similar long-term trajectories in three out of four burn treatments. Lack of evidence to support our hypotheses underscores the complexity of nitrogen dynamics inferred from wood δ15N. This is the first study to our knowledge to investigate multi-decadal effects of fire at different return intervals on wood δ15N, a potential proxy of nitrogen availability.
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