The Arctic in the twenty-first century: changing biogeochemical linkages across a paraglacial landscape of Greenland

Anderson, N. John and Saros, Jasmine E. and Bullard, Joanna E. and Cahoon, Sean M.P. and McGowan, Suzanne and Bagshaw, Elizabeth A. and Barry, Christopher D. and Bindler, Richard and Burpee, Benjamin T. and Carrivick, Jonathan L. and Fowler, Rachel A. and Fox, Anthony D. and Fritz, Sherilyn C. and Giles, Madeleine E. and Hamerlik, Ladislav and Ingeman-Nielsen, Thomas and Law, Antonia C. and Mernild, Sebastian H. and Northington, Robert M. and Osburn, Christopher L. and Pla-Rabès, Sergi and Post, Eric and Telling, Jon and Stroud, David A. and Whiteford, Erika J. and Yallop, Marian L. and Yde, Jacob C. (2017) The Arctic in the twenty-first century: changing biogeochemical linkages across a paraglacial landscape of Greenland. BioScience, 67 (2). pp. 118-133. ISSN 1525-3244

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Abstract

The Kangerlussuaq area of southwest Greenland encompasses diverse ecological, geomorphic, and climate gradients that function over a range of spatial and temporal scales. Ecosystems range from the microbial communities on the ice sheet and moisture-stressed terrestrial vegetation (and their associated herbivores) to freshwater and oligosaline lakes. These ecosystems are linked by a dynamic glacio-fluvial-aeolian geomorphic system that transports water, geological material, organic carbon and nutrients from the glacier surface to adjacent terrestrial and aquatic systems. This paraglacial system is now subject to substantial change because of rapid regional warming since 2000. Here, we describe changes in the eco- and geomorphic systems at a range of timescales and explore rapid future change in the links that integrate these systems. We highlight the importance of cross-system subsidies at the landscape scale and, importantly, how these might change in the near future as the Arctic is expected to continue to warm.

Item Type: Article
Keywords: tundra, lake, carbon, permafrost, aeolian
Schools/Departments: University of Nottingham, UK > Faculty of Social Sciences > School of Geography
Identification Number: 10.1093/biosci/biw158
Depositing User: Eprints, Support
Date Deposited: 26 Sep 2017 13:41
Last Modified: 14 Oct 2017 08:39
URI: http://eprints.nottingham.ac.uk/id/eprint/46749

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