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

Trumper, Matthew L.; Griffin, Daniel; Hobbie, Sarah E.; Howard, Ian M.; Nelson, David M.; Reich, Peter B.; McLauchlan, Kendra K.

doi:https://doi.org/10.5194/bg-17-4509-2020

Articles | Volume 17, issue 18

https://doi.org/10.5194/bg-17-4509-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-4509-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 18

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, Daniel Griffin, Sarah E. Hobbie, Ian M. Howard, David M. Nelson, Peter B. Reich, and Kendra K. McLauchlan

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Final revised paper (published on 15 Sep 2020)
Preprint (discussion started on 25 Mar 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'comments/review', Peter Hietz, 20 May 2020
- AC1: 'Response to Reviewers', Matthew Trumper, 02 Jul 2020
RC2: 'Review_Trumper et al.', Rodica Pena, 16 Jun 2020
- AC2: 'Response to Reviewers', Matthew Trumper, 02 Jul 2020

Peer-review completion

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

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.