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Integrating carbon emissions from lakes and streams in a subarctic catchment

Lundin, Erik J.; Giesler, Reiner; Persson, Andreas LU ; Thompson, Megan S. and Karlsson, Jan (2013) In Journal of Geophysical Research - Biogeosciences 118(3). p.1200-1207
Abstract
Northern inland waters emit CO2 and CH4 to the atmosphere but the importance of these emissions is poorly understood due to a lack of integrated catchment-scale estimates of carbon (C) emissions from lakes and streams. In this study we quantified the annual emission of CO2 and CH4 from 27 lakes and 23 stream segments in a 15km(2) subarctic catchment in northern Sweden. All lakes and streams were net sources of C to the atmosphere on an annual basis. Streams dominated (96%) the aquatic CO2 emission while lakes (61%) dominated the aquatic CH4 emission. Total aquatic C emission from the catchment was estimated to be 9.1gCm(-2)yr(-1) (98% as CO2). Although streams only accounted for 4% of the aquatic area in the catchment, they accounted for... (More)
Northern inland waters emit CO2 and CH4 to the atmosphere but the importance of these emissions is poorly understood due to a lack of integrated catchment-scale estimates of carbon (C) emissions from lakes and streams. In this study we quantified the annual emission of CO2 and CH4 from 27 lakes and 23 stream segments in a 15km(2) subarctic catchment in northern Sweden. All lakes and streams were net sources of C to the atmosphere on an annual basis. Streams dominated (96%) the aquatic CO2 emission while lakes (61%) dominated the aquatic CH4 emission. Total aquatic C emission from the catchment was estimated to be 9.1gCm(-2)yr(-1) (98% as CO2). Although streams only accounted for 4% of the aquatic area in the catchment, they accounted for 95% of the total emission. The C emissions from lakes and streams were considerably larger than previously reported downstream waterborne export of C from the catchment, indicating that the atmospheric losses of C in the aquatic systems are an important component in the catchment C balance. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
subarctic, streams, lakes, CO2, CH4, emission
in
Journal of Geophysical Research - Biogeosciences
volume
118
issue
3
pages
1200 - 1207
publisher
American Geophysical Union
external identifiers
  • wos:000325549900019
  • scopus:84886655050
ISSN
2169-8953
DOI
10.1002/jgrg.20092
language
English
LU publication?
yes
id
bbbb049c-0b74-4235-9b65-ee3ea2deb1a5 (old id 4170550)
date added to LUP
2013-11-28 11:38:48
date last changed
2019-05-14 01:38:05
@article{bbbb049c-0b74-4235-9b65-ee3ea2deb1a5,
  abstract     = {Northern inland waters emit CO2 and CH4 to the atmosphere but the importance of these emissions is poorly understood due to a lack of integrated catchment-scale estimates of carbon (C) emissions from lakes and streams. In this study we quantified the annual emission of CO2 and CH4 from 27 lakes and 23 stream segments in a 15km(2) subarctic catchment in northern Sweden. All lakes and streams were net sources of C to the atmosphere on an annual basis. Streams dominated (96%) the aquatic CO2 emission while lakes (61%) dominated the aquatic CH4 emission. Total aquatic C emission from the catchment was estimated to be 9.1gCm(-2)yr(-1) (98% as CO2). Although streams only accounted for 4% of the aquatic area in the catchment, they accounted for 95% of the total emission. The C emissions from lakes and streams were considerably larger than previously reported downstream waterborne export of C from the catchment, indicating that the atmospheric losses of C in the aquatic systems are an important component in the catchment C balance.},
  author       = {Lundin, Erik J. and Giesler, Reiner and Persson, Andreas and Thompson, Megan S. and Karlsson, Jan},
  issn         = {2169-8953},
  keyword      = {subarctic,streams,lakes,CO2,CH4,emission},
  language     = {eng},
  number       = {3},
  pages        = {1200--1207},
  publisher    = {American Geophysical Union},
  series       = {Journal of Geophysical Research - Biogeosciences},
  title        = {Integrating carbon emissions from lakes and streams in a subarctic catchment},
  url          = {http://dx.doi.org/10.1002/jgrg.20092},
  volume       = {118},
  year         = {2013},
}