Articles | Volume 14, issue 9
Research article
17 May 2017
Research article |  | 17 May 2017

Long-term carbon and nitrogen dynamics at SPRUCE revealed through stable isotopes in peat profiles

Erik A. Hobbie, Janet Chen, Paul J. Hanson, Colleen M. Iversen, Karis J. McFarlane, Nathan R. Thorp, and Kirsten S. Hofmockel


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 (27 Dec 2016) by Paul Stoy
AR by Erik Hobbie on behalf of the Authors (15 Feb 2017)  Author's response
ED: Referee Nomination & Report Request started (18 Feb 2017) by Paul Stoy
RR by Tim Moore (13 Mar 2017)
RR by Anonymous Referee #4 (23 Mar 2017)
ED: Publish subject to technical corrections (28 Mar 2017) by Paul Stoy
AR by Erik Hobbie on behalf of the Authors (07 Apr 2017)  Author's response    Manuscript
Short summary
We measured carbon and nitrogen isotope ratios (13C : 12C and 15N : 14N) in peat cores in a northern Minnesota bog to understand how climate, vegetation type, and decomposition affected C and N budgets over the last 9000 years. 13C : 12C patterns were primarily influenced by shifts in temperature, peatland vegetation and atmospheric CO2, whereas tree colonization and upland N influxes affected 15N : 14N ratios. Isotopic markers provided new insights into long-term patterns of CO2 and nitrogen losses.
Final-revised paper