Articles | Volume 14, issue 9
Biogeosciences, 14, 2481–2494, 2017
https://doi.org/10.5194/bg-14-2481-2017
Biogeosciences, 14, 2481–2494, 2017
https://doi.org/10.5194/bg-14-2481-2017

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 et al.

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Latest update: 02 Dec 2021
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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.
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