Climate control on terrestrial biospheric carbon turnover

Eglinton, T. I. et al. (2021) Climate control on terrestrial biospheric carbon turnover. Proceedings of the National Academy of Sciences, 118(8), e201158511. (doi: 10.1073/pnas.2011585118)

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Terrestrial organic-carbon reservoirs (vegetation, soils) currently consume more than a third of anthropogenic carbon emitted to the atmosphere, but the response of this “terrestrial sink” to future climate change is widely debated. Rivers export organic carbon sourced over their watersheds, offering an opportunity to assess controls on land carbon cycling on broad spatial scales. Using radiocarbon ages of biomolecular tracer compounds exported by rivers, we show that temperature and precipitation exert primary controls on biospheric-carbon turnover within river basins. These findings reveal large-scale climate control on soil carbon stocks, and they provide a framework to quantify responses of terrestrial organic-carbon reservoirs to past and future change.

Item Type:Articles
Additional Information:This work was supported by grants from the US NSF (OCE-0928582 to T.I.E. and V.V.G.; OCE-0851015 to B.P.-E., T.I.E., and V.V.G.; and EAR-1226818 to B.P.-E.), Swiss National Science Foundation (200021_140850, 200020_163162, and 200020_184865 to T.I.E.), and National Natural Science Foundation of China (41520104009 to M.Z.).
Glasgow Author(s) Enlighten ID:Mcintyre, Dr Cameron
Authors: Eglinton, T. I., Galy, V. V., Hemingway, J. D., Feng, X., Bao, H., Blattmann, T. M., Dickens, A. F., Gies, H., Giosan, L., Haghipour, N., Hou, P., Lupker, M., Mcintyre, C. P., Montlucon, D. B., Peucker-Ehrenbrink, B., Ponton, C., Schef, E., Schwab, M. S., Voss, B. M., Wacker, L., Wu, Y., and Zhao, M.
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Proceedings of the National Academy of Sciences
Publisher:Proceedings of the National Academy of Sciences
ISSN (Online):1091-6490
Published Online:15 February 2021
Copyright Holders:Copyright © 2022 National Academy of Science
First Published:First published in Proceedings of the National Academy of Sciences 118(8):e2011585118
Publisher Policy:Reproduced under a Creative Commons License

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