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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 17
Biogeosciences, 13, 5021–5041, 2016
https://doi.org/10.5194/bg-13-5021-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 13, 5021–5041, 2016
https://doi.org/10.5194/bg-13-5021-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 12 Sep 2016

Research article | 12 Sep 2016

Biogeochemical modeling of CO2 and CH4 production in anoxic Arctic soil microcosms

Guoping Tang et al.

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Cited articles

Abbott, B. W., Larouche, J. R., Jones, J. B., Bowden, W. B., and Balser, A. W.: Elevated dissolved organic carbon biodegradability from thawing and collapsing permafrost, J. Geophys. Res.-Biogeo., 119, 2049–2063, https://doi.org/10.1002/2014JG002678, 2014.
Appelo, C. A. J., Van Der Weiden, M. J. J., Tournassat, C., and Charlet, L.: Surface Complexation of Ferrous Iron and Carbonate on Ferrihydrite and the Mobilization of Arsenic, Environ. Sci. Technol., 36, 3096–3103, https://doi.org/10.1021/es010130n, 2002.
Arah, J. R. M. and Stephen, K. D.: A model of the processes leading to methane emission from peatland, Atmos. Environ., 32, 3257–3264, https://doi.org/10.1016/S1352-2310(98)00052-1, 1998.
Arnosti, C.: Rapid potential rates of extracellular enzymatic hydrolysis in Arctic sediments, Limnol. Oceanogr., 43, 315–324, https://doi.org/10.4319/lo.1998.43.2.0315, 1998.
Arnosti, C.: Substrate specificity in polysaccharide hydrolysis: Contrasts between bottom water and sediments, Limnol. Oceanogr., 45, 1112–1119, https://doi.org/10.4319/lo.2000.45.5.1112, 2000.
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We extend the Community Land Model coupled with carbon and nitrogen (CLM-CN) decomposition cascade to include simple organic substrate turnover, fermentation, Fe(III) reduction, and methanogenesis reactions, and assess the efficacy of various temperature and pH response functions. Incorporating the Windermere Humic Aqueous Model (WHAM) describes the observed pH evolution. Fe reduction can increase pH toward neutral pH to facilitate methanogenesis.
We extend the Community Land Model coupled with carbon and nitrogen (CLM-CN) decomposition...
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