Articles | Volume 16, issue 3
Biogeosciences, 16, 755–768, 2019
https://doi.org/10.5194/bg-16-755-2019
Biogeosciences, 16, 755–768, 2019
https://doi.org/10.5194/bg-16-755-2019

Research article 11 Feb 2019

Research article | 11 Feb 2019

Multi-year effect of wetting on CH4 flux at taiga–tundra boundary in northeastern Siberia deduced from stable isotope ratios of CH4

Ryo Shingubara et al.

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Manuscript not accepted for further review
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Cited articles

Caporaso, J. G., Lauber, C. L., Walters, W. A., Berg-Lyons, D., Lozupone, C. A., Turnbaugh, P. J., Fierer, N., and Knight, R.: Global patterns of 16S rRNA diversity at a depth of millions of sequences per sample, P. Natl. Acad. Sci. USA, 108, 4516–4522, https://doi.org/10.1073/pnas.1000080107, 2011. 
Chanton, J. P.: The effect of gas transport on the isotope signature of methane in wetlands, Org. Geochem., 36, 753–768, https://doi.org/10.1016/j.orggeochem.2004.10.007, 2005. 
Ciais, P., Sabine, C., Bala, G., Bopp, L., Brovkin, V., Canadell, J., Chhabra, A., DeFries, R., Galloway, J., Heimann, M., Jones, C., Le Quéré, C., Myneni, R. B., Piao, S., and Thornton, P.: Carbon and other biogeochemical cycles, in: Climate change 2013: The physical science basis, Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, UK and New York, NY, USA, 465–570, 2014. 
Conrad, R.: Microbial ecology of methanogens and methanotrophs, in: Advances in Agronomy, vol. 96, Academic Press, Burlington, San Diego, USA, 1–63, 2007. 
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(1) Wetting event with extreme precipitation increased methane emission from wetland, especially two summers later, despite the decline in water level after the wetting. (2) Isotopic compositions of methane in soil pore water suggested enhancement of production and less significance of oxidation in the following two summers after the wetting event. (3) Duration of water saturation in the active layer may be important for predicting methane emission after a wetting event in permafrost ecosystems.
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