Articles | Volume 16, issue 22
https://doi.org/10.5194/bg-16-4497-2019
https://doi.org/10.5194/bg-16-4497-2019
Research article
 | 
28 Nov 2019
Research article |  | 28 Nov 2019

High-frequency measurements explain quantity and quality of dissolved organic carbon mobilization in a headwater catchment

Benedikt J. Werner, Andreas Musolff, Oliver J. Lechtenfeld, Gerrit H. de Rooij, Marieke R. Oosterwoud, and Jan H. Fleckenstein

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Cited articles

Ågren, A., Jansson, M., Ivarsson, H., Bishop, K., and Seibert, J.: Seasonal and runoff-related changes in total organic carbon concentrations in the River Öre, Northern Sweden, Aquat. Sci., 70, 21–29, https://doi.org/10.1007/s00027-007-0943-9, 2007. 
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Alarcon-Herrera, M. T., Bewtra, J. K., and Biswas, N.: Seasonal variations in humic substances and their reduction through water treatment processes, Can. J. Civil Eng., 21, 173–179, https://doi.org/10.1139/l94-020, 1994. 
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Increased dissolved organic carbon (DOC) concentration in streams can pose a threat to downstream water resources. Analyzing data from an in-stream probe we found that hydroclimatic and hydrological drivers can describe up to 72 % of the observed DOC concentration and composition variability. Variability was found to be highest during discharge events with warm and dry preconditions. The findings suggest an impact of climate change on DOC exports and thus also on downstream water quality.
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