Articles | Volume 17, issue 10
https://doi.org/10.5194/bg-17-2853-2020
https://doi.org/10.5194/bg-17-2853-2020
Research article
 | 
28 May 2020
Research article |  | 28 May 2020

Comparison of eddy covariance CO2 and CH4 fluxes from mined and recently rewetted sections in a northwestern German cutover bog

David Holl, Eva-Maria Pfeiffer, and Lars Kutzbach

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Cited articles

Alm, J., Shurpali, N. J., Minkkinen, K., Aro, L., Hytoenen, J., Laurila, T., Lohila, A., Maljanen, M., Martikainen, P. J., and Maekiranta, P.: Emission factors and their uncertainty for the exchange of CO2, CH4 and N2O in Finnish managed peatlands, Boreal Environ. Res., 12, 191–209, 2007. a
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Beyer, C. and Höper, H.: Greenhouse gas exchange of rewetted bog peat extraction sites and a Sphagnum cultivation site in northwest Germany, Biogeosciences, 12, 2101–2117, https://doi.org/10.5194/bg-12-2101-2015, 2015. a, b, c, d
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Brown, M. G., Humphreys, E. R., Moore, T. R., Roulet, N. T., and Lafleur, P. M.: Evidence for a nonmonotonic relationship between ecosystem-scale peatland methane emissions and water table depth, J. Geophys. Res.-Biogeo., 119, 826–835, https://doi.org/10.1002/2013JG002576, 2014. a
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We measured greenhouse gas (GHG) fluxes at a bog site in northwestern Germany that has been heavily degraded by peat mining. During the 2-year investigation period, half of the area was still being mined, whereas the remaining half had been rewetted shortly before. We could therefore estimate the impact of rewetting on GHG flux dynamics. Rewetting had a considerable effect on the annual GHG balance and led to increased (up to 84  %) methane and decreased (up to 40  %) carbon dioxide release.
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