Articles | Volume 20, issue 1
https://doi.org/10.5194/bg-20-271-2023
https://doi.org/10.5194/bg-20-271-2023
Research article
 | 
17 Jan 2023
Research article |  | 17 Jan 2023

Contrasts in dissolved, particulate, and sedimentary organic carbon from the Kolyma River to the East Siberian Shelf

Dirk Jong, Lisa Bröder, Tommaso Tesi, Kirsi H. Keskitalo, Nikita Zimov, Anna Davydova, Philip Pika, Negar Haghipour, Timothy I. Eglinton, and Jorien E. Vonk

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Cited articles

Abbott, B. W., Larouche, J. R., Jones, J. B., Bowden, W. B., and Balser, A. W.: Elevated dissolved organic carbon biodegradability from thawing and collapsing permafrost, J. Geophys. Res.-Biogeo., 119, 2049–2063, https://doi.org/10.1002/2014JG002678, 2014. 
Aller, R. C. and Blair, N. E.: Carbon remineralization in the Amazon-Guianas tropical mobile mudbelt: A sedimentary incinerator, Cont. Shelf Res., 26, 2241–2259, https://doi.org/10.1016/j.csr.2006.07.016, 2006. 
Alling, V., Sanchez-Garcia, L., Porcelli, D., Pugach, S., Vonk, J. E., Van Dongen, B., Mörth, C. M., Anderson, L. G., Sokolov, A., Andersson, P., Humborg, C., Semiletov, I., and Gustafsson, Ö.: Nonconservative behavior of dissolved organic carbon across the Laptev and East Siberian seas, Global Biogeochem. Cycles, 24, 1–15, https://doi.org/10.1029/2010GB003834, 2010. 
Amon, R. M. W., Rinehart, A. J., Duan, S., Louchouarn, P., Prokushkin, A., Guggenberger, G., Bauch, D., Stedmon, C., Raymond, P. A., Holmes, R. M., McClelland, J. W., Peterson, B. J., Walker, S. A., and Zhulidov, A. V.: Dissolved organic matter sources in large Arctic rivers, Geochim. Cosmochim. Ac., 94, 217–237, https://doi.org/10.1016/j.gca.2012.07.015, 2012. 
Andersson, A.: A systematic examination of a random sampling strategy for source apportionment calculations, Sci. Total Environ., 412–413, 232–238, https://doi.org/10.1016/j.scitotenv.2011.10.031, 2011. 
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Short summary
With this study, we want to highlight the importance of studying both land and ocean together, and water and sediment together, as these systems function as a continuum, and determine how organic carbon derived from permafrost is broken down and its effect on global warming. Although on the one hand it appears that organic carbon is removed from sediments along the pathway of transport from river to ocean, it also appears to remain relatively ‘fresh’, despite this removal and its very old age.
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