Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden
Total organic carbon (TOC) is an important feature of water quality in Fenno- Scandia’s till catchments. In this study we estimated the contribution of headwater streams to downstream TOC, tested the hypothesis that TOC-concentration decreases downstream and explored mechanisms for the observed patt...
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ftunivzuerich:oai:www.zora.uzh.ch:72474 2024-10-06T13:51:35+00:00 Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden Temnerud, Johan Seibert, Jan Jansson, Mats Bishop, Kevin H 2007 application/pdf https://www.zora.uzh.ch/id/eprint/72474/ https://www.zora.uzh.ch/id/eprint/72474/1/2007_SeibertJ_1-s2.0-S0022169407002922-main.pdf https://doi.org/10.5167/uzh-72474 https://doi.org/10.1016/j.jhydrol.2007.05.015 eng eng Elsevier https://www.zora.uzh.ch/id/eprint/72474/1/2007_SeibertJ_1-s2.0-S0022169407002922-main.pdf doi:10.5167/uzh-72474 doi:10.1016/j.jhydrol.2007.05.015 urn:issn:0022-1694 info:eu-repo/semantics/restrictedAccess Temnerud, Johan; Seibert, Jan; Jansson, Mats; Bishop, Kevin H (2007). Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden. Journal of Hydrology, 342(1-2):72-87. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2007 ftunivzuerich https://doi.org/10.5167/uzh-7247410.1016/j.jhydrol.2007.05.015 2024-09-11T00:49:01Z Total organic carbon (TOC) is an important feature of water quality in Fenno- Scandia’s till catchments. In this study we estimated the contribution of headwater streams to downstream TOC, tested the hypothesis that TOC-concentration decreases downstream and explored mechanisms for the observed patterns. The drainage network of a boreal catchment (66 sites) in northern Sweden, with subcatchment sizes 0.11– 78 km², was sampled in August 2002. In the headwaters there was a large variation in TOC-concentration (4–66 mg l⁻¹) as well as other chemical parameters and specific discharge (0.13–8.2 l s⁻¹ km⁻²). Further downstream there was less variation in both chemistry and specific discharge. Both flow and chemistry stabilized at catchment areas larger than 5 km². No clear indication of in-stream processing effects on downstream TOC was observed, though there was TOC loss at lakes and some stream junctions. To test whether the observed downstream decrease is different than that expected from conservative mixing along the stream network, we used a Monte Carlo approach to simulate downstream conservative mixing. The observed spatial variability was higher than the simulated, indicating that landscape-scale patterns are more than conservative mixing of random inputs. While the importance of in-stream processes that alter TOC-concentrations cannot be ruled out, and loci of TOC loss do exist, we propose that headwater/downstream patterns in TOC, and related parameters depend largely on the mosaic of landscape elements (mires, lakes and forest) together with specific discharge. Article in Journal/Newspaper Northern Sweden University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel |
spellingShingle |
Institute of Geography 910 Geography & travel Temnerud, Johan Seibert, Jan Jansson, Mats Bishop, Kevin H Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
Total organic carbon (TOC) is an important feature of water quality in Fenno- Scandia’s till catchments. In this study we estimated the contribution of headwater streams to downstream TOC, tested the hypothesis that TOC-concentration decreases downstream and explored mechanisms for the observed patterns. The drainage network of a boreal catchment (66 sites) in northern Sweden, with subcatchment sizes 0.11– 78 km², was sampled in August 2002. In the headwaters there was a large variation in TOC-concentration (4–66 mg l⁻¹) as well as other chemical parameters and specific discharge (0.13–8.2 l s⁻¹ km⁻²). Further downstream there was less variation in both chemistry and specific discharge. Both flow and chemistry stabilized at catchment areas larger than 5 km². No clear indication of in-stream processing effects on downstream TOC was observed, though there was TOC loss at lakes and some stream junctions. To test whether the observed downstream decrease is different than that expected from conservative mixing along the stream network, we used a Monte Carlo approach to simulate downstream conservative mixing. The observed spatial variability was higher than the simulated, indicating that landscape-scale patterns are more than conservative mixing of random inputs. While the importance of in-stream processes that alter TOC-concentrations cannot be ruled out, and loci of TOC loss do exist, we propose that headwater/downstream patterns in TOC, and related parameters depend largely on the mosaic of landscape elements (mires, lakes and forest) together with specific discharge. |
format |
Article in Journal/Newspaper |
author |
Temnerud, Johan Seibert, Jan Jansson, Mats Bishop, Kevin H |
author_facet |
Temnerud, Johan Seibert, Jan Jansson, Mats Bishop, Kevin H |
author_sort |
Temnerud, Johan |
title |
Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden |
title_short |
Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden |
title_full |
Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden |
title_fullStr |
Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden |
title_full_unstemmed |
Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden |
title_sort |
spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern sweden |
publisher |
Elsevier |
publishDate |
2007 |
url |
https://www.zora.uzh.ch/id/eprint/72474/ https://www.zora.uzh.ch/id/eprint/72474/1/2007_SeibertJ_1-s2.0-S0022169407002922-main.pdf https://doi.org/10.5167/uzh-72474 https://doi.org/10.1016/j.jhydrol.2007.05.015 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Temnerud, Johan; Seibert, Jan; Jansson, Mats; Bishop, Kevin H (2007). Spatial variation in discharge and concentrations of organic carbon in a catchment network of boreal streams in northern Sweden. Journal of Hydrology, 342(1-2):72-87. |
op_relation |
https://www.zora.uzh.ch/id/eprint/72474/1/2007_SeibertJ_1-s2.0-S0022169407002922-main.pdf doi:10.5167/uzh-72474 doi:10.1016/j.jhydrol.2007.05.015 urn:issn:0022-1694 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.5167/uzh-7247410.1016/j.jhydrol.2007.05.015 |
_version_ |
1812179802383187968 |