Articles | Volume 27, issue 21
https://doi.org/10.5194/hess-27-3935-2023
https://doi.org/10.5194/hess-27-3935-2023
Research article
 | 
07 Nov 2023
Research article |  | 07 Nov 2023

Hydrological connectivity controls dissolved organic carbon exports in a peatland-dominated boreal catchment stream

Antonin Prijac, Laure Gandois, Pierre Taillardat, Marc-André Bourgault, Khawla Riahi, Alex Ponçot, Alain Tremblay, and Michelle Garneau

Related authors

Dissolved organic matter concentration and composition discontinuity at the peat–pool interface in a boreal peatland
Antonin Prijac, Laure Gandois, Laurent Jeanneau, Pierre Taillardat, and Michelle Garneau
Biogeosciences, 19, 4571–4588, https://doi.org/10.5194/bg-19-4571-2022,https://doi.org/10.5194/bg-19-4571-2022, 2022
Short summary

Related subject area

Subject: Biogeochemical processes | Techniques and Approaches: Instruments and observation techniques
CAMELS-Chem: augmenting CAMELS (Catchment Attributes and Meteorology for Large-sample Studies) with atmospheric and stream water chemistry data
Gary Sterle, Julia Perdrial, Dustin W. Kincaid, Kristen L. Underwood, Donna M. Rizzo, Ijaz Ul Haq, Li Li, Byung Suk Lee, Thomas Adler, Hang Wen, Helena Middleton, and Adrian A. Harpold
Hydrol. Earth Syst. Sci., 28, 611–630, https://doi.org/10.5194/hess-28-611-2024,https://doi.org/10.5194/hess-28-611-2024, 2024
Short summary
Technical note: Testing the effect of different pumping rates on pore-water sampling for ions, stable isotopes, and gas concentrations in the hyporheic zone
Tamara Michaelis, Anja Wunderlich, Thomas Baumann, Juergen Geist, and Florian Einsiedl
Hydrol. Earth Syst. Sci., 27, 3769–3782, https://doi.org/10.5194/hess-27-3769-2023,https://doi.org/10.5194/hess-27-3769-2023, 2023
Short summary
Geophysically based analysis of breakthrough curves and ion exchange processes in soil
Shany Ben Moshe, Pauline Kessouri, Dana Erlich, and Alex Furman
Hydrol. Earth Syst. Sci., 25, 3041–3052, https://doi.org/10.5194/hess-25-3041-2021,https://doi.org/10.5194/hess-25-3041-2021, 2021
Short summary
Spatio-temporal controls of C–N–P dynamics across headwater catchments of a temperate agricultural region from public data analysis
Stella Guillemot, Ophelie Fovet, Chantal Gascuel-Odoux, Gérard Gruau, Antoine Casquin, Florence Curie, Camille Minaudo, Laurent Strohmenger, and Florentina Moatar
Hydrol. Earth Syst. Sci., 25, 2491–2511, https://doi.org/10.5194/hess-25-2491-2021,https://doi.org/10.5194/hess-25-2491-2021, 2021
Short summary
Pesticide peak concentration reduction in a small vegetated treatment system controlled by chemograph shape
Jan Greiwe, Oliver Olsson, Klaus Kümmerer, and Jens Lange
Hydrol. Earth Syst. Sci., 25, 497–509, https://doi.org/10.5194/hess-25-497-2021,https://doi.org/10.5194/hess-25-497-2021, 2021
Short summary

Cited articles

Ågren, A., Haei, M., Köhler, S. J., Bishop, K., and Laudon, H.: Regulation of stream water dissolved organic carbon (DOC) concentrations during snowmelt; the role of discharge, winter climate and memory effects, Biogeosciences, 7, 2901–2913, https://doi.org/10.5194/bg-7-2901-2010, 2010. 
Aho, K. S. and Raymond, P. A.: Differential Response of Greenhouse Gas Evasion to Storms in Forested and Wetland Streams, J. Geophys. Res.-Biogeo., 124, 649–662, https://doi.org/10.1029/2018JG004750, 2019. 
Austnes, K., Evans, C. D., Eliot-Laize, C., Naden, P. S., and Old, G. H.: Effects of storm events on mobilisation and in-stream processing of dissolved organic matter (DOM) in a Welsh peatland catchment, Biogeochemistry, 99, 157–173, https://doi.org/10.1007/s10533-009-9399-4, 2010. 
Billett, M. F., Deacon, C. M., Palmer, S. M., Dawson, J. J. C., and Hope, D.: Connecting organic carbon in stream water and soils in a peatland catchment, J. Geophys. Res.-Biogeo., 111, G02010, https://doi.org/10.1029/2005JG000065, 2006. 
Billett, M. F., Dinsmore, K. J., Smart, R. P., Garnett, M. H., Holden, J., Chapman, P., Baird, A. J., Grayson, R., and Stott, A. W.: Variable source and age of different forms of carbon released from natural peatland pipes, J. Geophys. Res.-Biogeo., 117, G02003, https://doi.org/10.1029/2011JG001807, 2012. 
Download
Short summary
The peatland dissolved organic carbon (DOC) lost through aquatic exports can offset a significant proportion of the ecosystem carbon balance. Hence, we propose a new approach to better estimate the DOC exports based on the specific contribution of a boreal peatland (Canada) during periods of high flow. In addition, we studied the relations between DOC concentrations and stream discharge in order to better understand the DOC export mechanisms under contrasted hydrometeorological conditions.