Volume 14, issue 23 | Copyright
Biogeosciences, 14, 5487-5505, 2017
https://doi.org/10.5194/bg-14-5487-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 06 Dec 2017

Research article | 06 Dec 2017

Retrogressive thaw slumps temper dissolved organic carbon delivery to streams of the Peel Plateau, NWT, Canada

Cara A. Littlefair et al.
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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., 119, 2049–2063, https://doi.org/10.1002/2014JG002678, 2014.
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This study is the first to examine how permafrost slumping affects dissolved organic carbon (DOC) mobilization in landscapes dominated by glacial tills. Unlike in previous studies, we find that slumping is associated with decreased DOC concentrations in downstream systems – an effect that appears to occur via adsorption to fine-grained sediments. This work adds significantly to our understanding of varying effects of permafrost thaw on organic carbon mobilization across diverse Arctic regions.
This study is the first to examine how permafrost slumping affects dissolved organic carbon...
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