Large Lakes Dominate CO2 Evasion From Lakes in an Arctic Catchment. Rocher-Ros, G., Giesler, R., Lundin, E., Salimi, S., Jonsson, A., & Karlsson, J. Geophysical Research Letters, 2017. 00001![Large Lakes Dominate CO2 Evasion From Lakes in an Arctic Catchment [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex CO2 evasion from freshwater lakes is an important component of the carbon cycle. However, the relative contribution from different lake sizes may vary, since several parameters underlying CO2 flux are size dependent. Here we estimated the annual lake CO2 evasion from a catchment in northern Sweden encompassing about 30,000 differently sized lakes. We show that areal CO2 fluxes decreased rapidly with lake size, but this was counteracted by the greater overall coverage of larger lakes. As a result, total efflux increased with lake size and the single largest lake in the catchment dominated the CO2 evasion (53% of all CO2 evaded). By contrast, the contribution from the smallest ponds (about 27,000) was minor (\textless6%). Our results emphasize the importance of accounting for both CO2 flux rates and areal contribution of various sized lakes in assessments of CO2 evasion at the landscape scale.
@article{rocher-ros_large_2017,
title = {Large {Lakes} {Dominate} {CO2} {Evasion} {From} {Lakes} in an {Arctic} {Catchment}},
issn = {1944-8007},
url = {http://onlinelibrary.wiley.com/doi/10.1002/2017GL076146/abstract},
doi = {10.1002/2017GL076146},
abstract = {CO2 evasion from freshwater lakes is an important component of the carbon cycle. However, the relative contribution from different lake sizes may vary, since several parameters underlying CO2 flux are size dependent. Here we estimated the annual lake CO2 evasion from a catchment in northern Sweden encompassing about 30,000 differently sized lakes. We show that areal CO2 fluxes decreased rapidly with lake size, but this was counteracted by the greater overall coverage of larger lakes. As a result, total efflux increased with lake size and the single largest lake in the catchment dominated the CO2 evasion (53\% of all CO2 evaded). By contrast, the contribution from the smallest ponds (about 27,000) was minor ({\textless}6\%). Our results emphasize the importance of accounting for both CO2 flux rates and areal contribution of various sized lakes in assessments of CO2 evasion at the landscape scale.},
language = {en},
urldate = {2018-01-02},
journal = {Geophysical Research Letters},
author = {Rocher-Ros, Gerard and Giesler, Reiner and Lundin, Erik and Salimi, Shokoufeh and Jonsson, Anders and Karlsson, Jan},
year = {2017},
note = {00001},
keywords = {\#nosource, 0414 Biogeochemical cycles, processes, and modeling, 0428 Carbon cycling, 0458 Limnology, 0746 Lakes, 0748 Ponds, lake CO2 evasion, lake size distribution, upscaling C cycle},
pages = {2017GL076146},
}
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We show that areal CO2 fluxes decreased rapidly with lake size, but this was counteracted by the greater overall coverage of larger lakes. As a result, total efflux increased with lake size and the single largest lake in the catchment dominated the CO2 evasion (53% of all CO2 evaded). By contrast, the contribution from the smallest ponds (about 27,000) was minor (\\textless6%). 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However, the relative contribution from different lake sizes may vary, since several parameters underlying CO2 flux are size dependent. Here we estimated the annual lake CO2 evasion from a catchment in northern Sweden encompassing about 30,000 differently sized lakes. We show that areal CO2 fluxes decreased rapidly with lake size, but this was counteracted by the greater overall coverage of larger lakes. As a result, total efflux increased with lake size and the single largest lake in the catchment dominated the CO2 evasion (53\\% of all CO2 evaded). By contrast, the contribution from the smallest ponds (about 27,000) was minor ({\\textless}6\\%). 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