Articles | Volume 19, issue 12
https://doi.org/10.5194/bg-19-3073-2022
https://doi.org/10.5194/bg-19-3073-2022
Research article
 | 
01 Jul 2022
Research article |  | 01 Jul 2022

Dissolved organic matter characterization in soils and streams in a small coastal low-Arctic catchment

Niek Jesse Speetjens, George Tanski, Victoria Martin, Julia Wagner, Andreas Richter, Gustaf Hugelius, Chris Boucher, Rachele Lodi, Christian Knoblauch, Boris P. Koch, Urban Wünsch, Hugues Lantuit, and Jorien E. Vonk

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Cited articles

AMAP: Snow, Water, Ice and Permafrost in the Arctic, Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway, xiv + 269 pp., ISBN 978-82-7971-101-8, 2017. 
Balser, T. C.: Humification, in: Encyclopedia of Soils in the Environment, edited by: Hillel, D., Elsevier, Oxford, 195–207, https://doi.org/10.1016/B0-12-348530-4/00453-7, 2004. 
Beel, C. R., Lamoureux, S. F., Orwin, J. F., Pope, M. A., Lafrenière, M. J., and Scott, N. A.: Differential impact of thermal and physical permafrost disturbances on High Arctic dissolved and particulate fluvial fluxes, Scientific Reports, 10, 11836, https://doi.org/10.1038/s41598-020-68824-3, 2020 
Biskaborn, B. K., Smith, S. L., Noetzli, J., et al.: Permafrost is warming at a global scale, Nat. Commun., 10, 264, https://doi.org/10.1038/s41467-018-08240-4, 2019. 
Bosch, C., Andersson, A., Kruså, M., Bandh, C., Hovorková, I., Klánová, J., Knowles, T. D. J., Pancost, R. D., Evershed, R. P., and Gustafsson, Ö.: Source Apportionment of Polycyclic Aromatic Hydrocarbons in Central European Soils with Compound-Specific Triple Isotopes (δ13C, Δ14C, and δ2H), Environ. Sci. Technol., 49, 7657–7665, https://doi.org/10.1021/acs.est.5b01190, 2015. 
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Short summary
Climate change and warming in the Arctic exceed global averages. As a result, permanently frozen soils (permafrost) which store vast quantities of carbon in the form of dead plant material (organic matter) are thawing. Our study shows that as permafrost landscapes degrade, high concentrations of organic matter are released. Partly, this organic matter is degraded rapidly upon release, while another significant fraction enters stream networks and enters the Arctic Ocean.
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