Articles | Volume 19, issue 17
https://doi.org/10.5194/bg-19-4331-2022
https://doi.org/10.5194/bg-19-4331-2022
Research article
 | 
14 Sep 2022
Research article |  | 14 Sep 2022

Spatial and temporal variation in δ13C values of methane emitted from a hemiboreal mire: methanogenesis, methanotrophy, and hysteresis

Janne Rinne, Patryk Łakomiec, Patrik Vestin, Joel D. White, Per Weslien, Julia Kelly, Natascha Kljun, Lena Ström, and Leif Klemedtsson

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Cited articles

Anderson, M. J.: A new method for non-parametric multivariate analysis of variance, Aust. Ecol., 26, 32–46, 2001. 
Breiman, L.: Random Forests, Mach. Learn., 45, 5–32, 2001. 
Brix, H., Sorrell, B. K., and Orr, B. T.: Internal pressurization and convective gas-flow in some emergent fresh-water macrophytes, Limnol. Oceanogr., 37, 1420–1433, https://doi.org/10.4319/lo.1992.37.7.1420, 1992. 
Chang, K.-Y., Riley, W. J., Crill, P. M., Grant, R. F., and Saleska, S. R.: Hysteretic temperature sensitivity of wetland CH4 fluxes explained by substrate availability and microbial activity, Biogeosciences, 17, 5849–5860, https://doi.org/10.5194/bg-17-5849-2020, 2020. 
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Short summary
The study uses the stable isotope 13C of carbon in methane to investigate the origins of spatial and temporal variation in methane emitted by a temperate wetland ecosystem. The results indicate that methane production is more important for spatial variation than methane consumption by micro-organisms. Temporal variation on a seasonal timescale is most likely affected by more than one driver simultaneously.
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