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Integrating carbon ...
Integrating carbon emissions from lakes and streams in a subarctic catchment
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- Lundin, Erik J., 1982- (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum
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- Giesler, Reiner (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum
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- Persson, Andreas (författare)
- Lund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
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- Thompson, Megan S. (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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- Karlsson, Jan, 1969- (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum
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(creator_code:org_t)
- 2013-09-03
- 2013
- Engelska.
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Ingår i: Journal of Geophysical Research: Biogeosciences. - : Wiley-Blackwell. - 2169-8953. ; 118:3, s. 1200-1207
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http://umu.diva-port...
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- subarctic
- streams
- lakes
- CO2
- CH4
- emission
- subarctic
- streams
- lakes
- CO2
- CH4
- emission
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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