Articles | Volume 16, issue 3
https://doi.org/10.5194/bg-16-663-2019
https://doi.org/10.5194/bg-16-663-2019
Research article
 | 
04 Feb 2019
Research article |  | 04 Feb 2019

Modeling anaerobic soil organic carbon decomposition in Arctic polygon tundra: insights into soil geochemical influences on carbon mineralization

Jianqiu Zheng, Peter E. Thornton, Scott L. Painter, Baohua Gu, Stan D. Wullschleger, and David E. Graham

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Cited articles

Atalay, Y. B., Carbonaro, R. F., and Di Toro, D. M.: Distribution of proton dissociation constants for model humic and fulvic acid molecules, Environ. Sci. Technol., 43, 3626–3631, https://doi.org/10.1021/es803057r, 2009. 
Bethke, C. M., Sanford, R. A., Kirk, M. F., Jin, Q., and Flynn, T. M.: The thermodynamic ladder in geomicrobiology, Am. J. Sci., 311, 183–210, https://doi.org/10.2475/03.2011.01, 2011. 
Blumer-Schuette, S. E., Brown, S. D., Sander, K. B., Bayer, E. A., Kataeva, I., Zurawski, J. V., Conway, J. M., Adams, M. W. W., and Kelly, R. M.: Thermophilic lignocellulose deconstruction, FEMS Microbiol. Rev., 38, 393–448, https://doi.org/10.1111/1574-6976.12044, 2014. 
Bore, E. K., Apostel, C., Halicki, S., Kuzyakov, Y., and Dippold, M. A.: Microbial metabolism in soil at subzero temperatures: adaptation mechanisms revealed by position-specific 13C labeling, Front. Microbiol., 8, 946, https://doi.org/10.3389/fmicb.2017.00946, 2017. 
Boye, K., Noël, V., Tfaily, M. M., Bone, S. E., Williams, K. H., Bargar, John R., and Fendorf, S.: Thermodynamically controlled preservation of organic carbon in floodplains, Nature Geosci., 10, 415, https://doi.org/10.1038/ngeo2940, 2017. 
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Short summary
Arctic warming exposes soil carbon to increased degradation, increasing CO2 and CH4 emissions. Models underrepresent anaerobic decomposition that predominates wet soils. We simulated microbial growth, pH regulation, and anaerobic carbon decomposition in a new model, parameterized and validated with prior soil incubation data. The model accurately simulated CO2 production and strong influences of water content, pH, methanogen biomass, and competing electron acceptors on CH4 production.
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