Articles | Volume 16, issue 16
https://doi.org/10.5194/bg-16-3207-2019
https://doi.org/10.5194/bg-16-3207-2019
Research article
 | 
29 Aug 2019
Research article |  | 29 Aug 2019

The ratio of methanogens to methanotrophs and water-level dynamics drive methane transfer velocity in a temperate kettle-hole peat bog

Camilo Rey-Sanchez, Gil Bohrer, Julie Slater, Yueh-Fen Li, Roger Grau-Andrés, Yushan Hao, Virginia I. Rich, and G. Matt Davies

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Cited articles

Angel, R., Matthies, D., and Conrad, R.: Activation of Methanogenesis in Arid Biological Soil Crusts Despite the Presence of Oxygen, PLOS ONE, 6, e20453, https://doi.org/10.1371/journal.pone.0020453, 2011. 
Angle, J. C., Morin, T. H., Solden, L. M., Narrowe, A. B., Smith, G. J., Borton, M. A., Rey-Sanchez, C., Daly, R. A., Mirfenderesgi, G., Hoyt, D. W., Riley, W. J., Miller, C. S., Bohrer, G., and Wrighton, K. C.: Methanogenesis in oxygenated soils is a substantial fraction of wetland methane emissions, Nat. Commun., 8, 1567, https://doi.org/10.1038/s41467-017-01753-4, 2017. 
Apprill, A., McNally, S., Parsons, R., and Weber, L.: Minor revision to V4 region SSU rRNA 806R gene primer greatly increases detection of SAR11 bacterioplankton, Aquat. Microb. Ecol., 75, 129–137, https://doi.org/10.3354/ame01753, 2015. 
Basiliko, N., Blodau, C., Roehm, C., Bengtson, P., and Moore, T. R.: Regulation of decomposition and methane dynamics across natural, commercially mined, and restored northern peatlands, Ecosystems, 10, 1148–1165, https://doi.org/10.1007/s10021-007-9083-2, 2007. 
Basiliko, N., Henry, K., Gupta, V., Moore, T. R., Driscoll, B. T., and Dunfield, P. F.: Controls on bacterial and archaeal community structure and greenhouse gas production in natural, mined, and restored Canadian peatlands, Front. Microbiol., 4, 215, https://doi.org/10.3389/fmicb.2013.00215, 2013. 
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Short summary
It is estimated that natural wetlands emit approximately 30 % of all the methane released to the atmosphere; yet these estimates are highly uncertain due to the complexity of biological, chemical, and physical processes controlling methane emissions. In this study, we explore how some of these key processes drive methane emissions in a temperate peat bog. We show that the composition of microbial methane cyclers in the upper portion of the peat drives the velocity of methane release to the air.
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