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Polar Lakes and RiversLimnology of Arctic and Antarctic Aquatic Ecosystems$
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Warwick F. Vincent and Johanna Laybourn-Parry

Print publication date: 2008

Print ISBN-13: 9780199213887

Published to Oxford Scholarship Online: January 2009

DOI: 10.1093/acprof:oso/9780199213887.001.0001

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Biogeochemical processes in high-latitude lakes and rivers

Biogeochemical processes in high-latitude lakes and rivers

(p.137) CHAPTER 8 Biogeochemical processes in high-latitude lakes and rivers
Polar Lakes and Rivers

W. Berry Lyons

Jacques C. Finlay

Oxford University Press

Polar aquatic ecosystems are excellent laboratories for biogeochemical research. The polar regions are among the least modified by human activities, so there are opportunities to study biogeochemical processes in the absence of overwhelming anthropogenic influences. In addition, there are abundant freshwater ecosystems in which comparative or experimental work can be conducted, and increasing evidence for environmental change is driving a rapid expansion in polar research. This chapter draws upon extensive surveys of lake chemistry to summarize the biogeochemical composition of polar lakes, and to illustrate the growing potential for cross-system comparisons. It describes the general features of biogeochemical cycles in polar aquatic environments, and the important and sometimes unique controls over biogeochemical processes.

Keywords:   carbon cycle, nutrient cycling, geochemical linkages, landscapes, biogeochemical cycles

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