Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams
The subarctic landscape is composed of a complex mosaic of vegetation, geology and topography, which control both the hydrology and biogeochemistry of streams across space and time. We present a synoptic sampling campaign that aimed to estimate dissolved C export variability under low-flow condition...
Published in: | Arctic, Antarctic, and Alpine Research |
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Stockholms universitet, Institutionen för naturgeografi
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ftstockholmuniv:oai:DiVA.org:su-115245 2023-05-15T14:14:27+02:00 Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams Jantze, Elin J. Laudon, Hjalmar Dahlke, Helen E. Lyon, Steve W. 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115245 https://doi.org/10.1657/AAAR0014-044 eng eng Stockholms universitet, Institutionen för naturgeografi Arctic, Antarctic and Alpine research, 1523-0430, 2015, 47:3, s. 529-546 orcid:0000-0002-1137-648X http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115245 doi:10.1657/AAAR0014-044 ISI:000359679000011 info:eu-repo/semantics/openAccess Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2015 ftstockholmuniv https://doi.org/10.1657/AAAR0014-044 2023-02-23T21:41:35Z The subarctic landscape is composed of a complex mosaic of vegetation, geology and topography, which control both the hydrology and biogeochemistry of streams across space and time. We present a synoptic sampling campaign that aimed to estimate dissolved C export variability under low-flow conditions from a subarctic landscape. The results included measurements of stream discharge and concentrations of both dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and carbon dioxide (CO2) for 32 subcatchments of the Abiskojokka catchment in northern Sweden. For these subarctic headwater streams, we found that DOC, DIC and CO2 concentrations showed significant variability (p < 0.05) relative to catchment size, discharge, specific discharge, lithology, electrical conductivity, weathering products, and the estimated travel time of water through the subcatchment. Our results indicate that neither vegetation cover nor lithology alone could explain the concentrations and mass flux rates of DOC and DIC. Instead, we found that mass flux rates of DOC, DIC, and CO2 depended mainly on specific discharge and water travel time. Furthermore, our results demonstrate the importance of studying lateral carbon transport in combination with hydrological flow paths at small scales to establish a knowledge foundation applicable for expected carbon cycle and hydroclimatic shifts due to climate change. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Northern Sweden Subarctic Stockholm University: Publications (DiVA) Arctic, Antarctic, and Alpine Research 47 3 529 546 |
institution |
Open Polar |
collection |
Stockholm University: Publications (DiVA) |
op_collection_id |
ftstockholmuniv |
language |
English |
topic |
Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
spellingShingle |
Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Jantze, Elin J. Laudon, Hjalmar Dahlke, Helen E. Lyon, Steve W. Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
topic_facet |
Earth and Related Environmental Sciences Geovetenskap och miljövetenskap |
description |
The subarctic landscape is composed of a complex mosaic of vegetation, geology and topography, which control both the hydrology and biogeochemistry of streams across space and time. We present a synoptic sampling campaign that aimed to estimate dissolved C export variability under low-flow conditions from a subarctic landscape. The results included measurements of stream discharge and concentrations of both dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and carbon dioxide (CO2) for 32 subcatchments of the Abiskojokka catchment in northern Sweden. For these subarctic headwater streams, we found that DOC, DIC and CO2 concentrations showed significant variability (p < 0.05) relative to catchment size, discharge, specific discharge, lithology, electrical conductivity, weathering products, and the estimated travel time of water through the subcatchment. Our results indicate that neither vegetation cover nor lithology alone could explain the concentrations and mass flux rates of DOC and DIC. Instead, we found that mass flux rates of DOC, DIC, and CO2 depended mainly on specific discharge and water travel time. Furthermore, our results demonstrate the importance of studying lateral carbon transport in combination with hydrological flow paths at small scales to establish a knowledge foundation applicable for expected carbon cycle and hydroclimatic shifts due to climate change. |
format |
Article in Journal/Newspaper |
author |
Jantze, Elin J. Laudon, Hjalmar Dahlke, Helen E. Lyon, Steve W. |
author_facet |
Jantze, Elin J. Laudon, Hjalmar Dahlke, Helen E. Lyon, Steve W. |
author_sort |
Jantze, Elin J. |
title |
Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
title_short |
Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
title_full |
Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
title_fullStr |
Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
title_full_unstemmed |
Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
title_sort |
spatial variability of dissolved organic and inorganic carbon in subarctic headwater streams |
publisher |
Stockholms universitet, Institutionen för naturgeografi |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115245 https://doi.org/10.1657/AAAR0014-044 |
genre |
Antarctic and Alpine Research Arctic Northern Sweden Subarctic |
genre_facet |
Antarctic and Alpine Research Arctic Northern Sweden Subarctic |
op_relation |
Arctic, Antarctic and Alpine research, 1523-0430, 2015, 47:3, s. 529-546 orcid:0000-0002-1137-648X http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115245 doi:10.1657/AAAR0014-044 ISI:000359679000011 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1657/AAAR0014-044 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
47 |
container_issue |
3 |
container_start_page |
529 |
op_container_end_page |
546 |
_version_ |
1766286905666699264 |