Articles | Volume 18, issue 17
https://doi.org/10.5194/bg-18-4919-2021
https://doi.org/10.5194/bg-18-4919-2021
Research article
 | 
09 Sep 2021
Research article |  | 09 Sep 2021

Fluvial carbon dioxide emission from the Lena River basin during the spring flood

Sergey N. Vorobyev, Jan Karlsson, Yuri Y. Kolesnichenko, Mikhail A. Korets, and Oleg S. Pokrovsky

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Cited articles

Abril, G., Bouillon, S., Darchambeau, F., Teodoru, C. R., Marwick, T. R., Tamooh, F., Ochieng Omengo, F., Geeraert, N., Deirmendjian, L., Polsenaere, P., and Borges, A. V.: Technical Note: Large overestimation of pCO2 calculated from pH and alkalinity in acidic, organic-rich freshwaters, Biogeosciences, 12, 67–78, https://doi.org/10.5194/bg-12-67-2015, 2015. 
Ahmed, R., Prowse, T., Dibike, Y., Bonsal, B., and O'Neil H.: Recent trends in freshwater influx to the Arctic Ocean from four major Arctic-draining rivers, Water, 12, 1189, https://doi.org/10.3390/w12041189, 2020. 
Alin, S. R., Rasera, M. F. F. L., Salimon, C. I., Richey, J. E., Holtgrieve, G. W., Krusche, A. V., and Shidvongs, A.: Physical controls on carbon dioxide transfer velocity and flux in low-gradient river systems and implications for regional carbon budgets, J. Geophys. Res.-Biogeo., 116, G01009. https://doi.org/10.1029/2010jg001398, 2011. 
Allen, G. H. and Pavelsky, T. M.: Global extent of rivers and streams, Science, 361, 585–588, https://doi.org/10.1126/science.aat0636, 2018. 
Short summary
In order to quantify riverine carbon (C) exchange with the atmosphere in permafrost regions, we report a first assessment of CO2 and CH4 concentration and fluxes of the largest permafrost-affected river, the Lena River, during the peak of spring flow. The results allowed identification of environmental factors controlling GHG concentrations and emission in the Lena River watershed; this new knowledge can be used for foreseeing future changes in C balance in permafrost-affected Arctic rivers.
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