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UF researchers' experiment is first to simulate warming of Arctic permafrost
Date:12/5/2013

d that the water content of the samples whether the soils drained or remained waterlogged had a large effect on how much carbon the soils released, with well-drained soils releasing more carbon.

And in a recent report in Global Change Biology, Schuur and postdoctoral researcher Christina Schadel synthesized the data from sites across the Arctic Circle, as part of the Permafrost Carbon Network, started at UF by Schuur with a National Science Foundation grant. That study showed that the ratio of carbon to nitrogen in permafrost soils helps determine how much carbon the soil releases upon thawing. The ratio could be a useful tool in ecosystem modeling because the ratio could be measured in any soil sample.

The studies confirm that a significant amount of carbon is released from thawing permafrost and highlight that there are factors beyond simply temperature that affect carbon release, Schuur said.


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Contact: Ted Schuur
tschuur@ufl.edu
352-392-7913
University of Florida
Source:Eurekalert

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