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Polygonal tundra geomorphological change in response to warming alters future CO2 and CH4 flux on the Barrow Peninsula

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Mark J. Lara, David McGuire, Eugenie S Euskirchen, Craig E. Tweedie, Kenneth M. Hinkel, Alexei N. Skurikhin, Vladimir E. Romanovsky, Guido Grosse, W. Robert Bolton, and Helene Genet, 2015-04, Polygonal tundra geomorphological change in response to warming alters future CO2 and CH4 flux on the Barrow Peninsula: Global Change Biology, v. 21, iss. 4.

Summary

Abstract (from http://onlinelibrary.wiley.com/doi/10.1111/gcb.12757/abstract): The landscape of the Barrow Peninsula in northern Alaska is thought to have formed over centuries to millennia, and is now dominated by ice-wedge polygonal tundra that spans drained thaw-lake basins and interstitial tundra. In nearby tundra regions, studies have identified a rapid increase in thermokarst formation (i.e., pits) over recent decades in response to climate warming, facilitating changes in polygonal tundra geomorphology. We assessed the future impact of 100 years of tundra geomorphic change on peak growing season carbon exchange in response to: (i) landscape succession associated with the thaw-lake cycle; and (ii) low, moderate, and extreme scenarios [...]

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  • Alaska CASC
  • National and Regional Climate Adaptation Science Centers

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journalGlobal Change Biology
parts
typedoi
value10.1111/gcb.12757
typestartPage
value1634
typeissn
value1365-2486
typeissue
value4
typeendPage
value1651
typevolume
value21

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