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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2015
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Online Access: | https://escholarship.org/uc/item/4qn4p03f https://escholarship.org/content/qt4qn4p03f/qt4qn4p03f.pdf https://doi.org/10.1657/aaar0014-044 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt4qn4p03f 2024-09-15T17:49:01+00:00 Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams Jantze, EJ Laudon, H Dahlke, HE Lyon, SW 529 - 546 2015-08-01 application/pdf https://escholarship.org/uc/item/4qn4p03f https://escholarship.org/content/qt4qn4p03f/qt4qn4p03f.pdf https://doi.org/10.1657/aaar0014-044 unknown eScholarship, University of California qt4qn4p03f https://escholarship.org/uc/item/4qn4p03f https://escholarship.org/content/qt4qn4p03f/qt4qn4p03f.pdf doi:10.1657/aaar0014-044 public Arctic Antarctic and Alpine Research, vol 47, iss 3 Physical Geography and Environmental Geoscience Ecology article 2015 ftcdlib https://doi.org/10.1657/aaar0014-044 2024-06-28T06:28:19Z 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 University of California: eScholarship Arctic, Antarctic, and Alpine Research 47 3 529 546 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Physical Geography and Environmental Geoscience Ecology |
spellingShingle |
Physical Geography and Environmental Geoscience Ecology Jantze, EJ Laudon, H Dahlke, HE Lyon, SW Spatial Variability of Dissolved Organic and Inorganic Carbon in Subarctic Headwater Streams |
topic_facet |
Physical Geography and Environmental Geoscience Ecology |
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, EJ Laudon, H Dahlke, HE Lyon, SW |
author_facet |
Jantze, EJ Laudon, H Dahlke, HE Lyon, SW |
author_sort |
Jantze, EJ |
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 |
eScholarship, University of California |
publishDate |
2015 |
url |
https://escholarship.org/uc/item/4qn4p03f https://escholarship.org/content/qt4qn4p03f/qt4qn4p03f.pdf https://doi.org/10.1657/aaar0014-044 |
op_coverage |
529 - 546 |
genre |
Antarctic and Alpine Research Arctic Northern Sweden Subarctic |
genre_facet |
Antarctic and Alpine Research Arctic Northern Sweden Subarctic |
op_source |
Arctic Antarctic and Alpine Research, vol 47, iss 3 |
op_relation |
qt4qn4p03f https://escholarship.org/uc/item/4qn4p03f https://escholarship.org/content/qt4qn4p03f/qt4qn4p03f.pdf doi:10.1657/aaar0014-044 |
op_rights |
public |
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_ |
1810290738211061760 |