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Modeling CH4 and CO2 cycling using porewater stable isotopes in a thermokarst bog in Interior Alaska: results from three conceptual reaction networks

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Rebecca B. Neumann, Steven J. Blazewicz, Christopher H. Conaway, Merritt R. Turetsky, and Mark P. Waldrop, Modeling CH4 and CO2 cycling using porewater stable isotopes in a thermokarst bog in Interior Alaska: results from three conceptual reaction networks: Biogeochemistry, v. 127, iss. 1.

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Abstract (from http://link.springer.com/article/10.1007%2Fs10533-015-0168-2): Quantifying rates of microbial carbon transformation in peatlands is essential for gaining mechanistic understanding of the factors that influence methane emissions from these systems, and for predicting how emissions will respond to climate change and other disturbances. In this study, we used porewater stable isotopes collected from both the edge and center of a thermokarst bog in Interior Alaska to estimate in situ microbial reaction rates. We expected that near the edge of the thaw feature, actively thawing permafrost and greater abundance of sedges would increase carbon, oxygen and nutrient availability, enabling faster microbial rates relative to the [...]

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  • Alaska CASC
  • National and Regional Climate Adaptation Science Centers

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Water, Coasts and Ice
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journalBiogeochemistry
parts
typestartPage
value57
typeendPage
value87
typedoi
value10.1007/s10533-015-0168-2
typevolume
value127
typeissue
value1
typeissn
value0168-2563

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