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2015-09-15

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cc-by (c) Lundin, E.J. et al., 2015
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/208381

Large difference in carbon emission - burial balances between boreal and arctic lakes

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https://doi.org/10.1038/srep14248

Abstract

Lakes play an important role in the global carbon (C) cycle by burying C in sediments and emitting CO2 and CH4 to the atmosphere. The strengths and control of these fundamentally different pathways are therefore of interest when assessing the continental C balance and its response to environmental change. In this study, based on new high-resolution estimates in combination with literature data, we show that annual emission:burial ratios are generally ten times higher in boreal compared to subarctic – arctic lakes. These results suggest major differences in lake C cycling between biomes, as lakes in warmer boreal regions emit more and store relatively less C than lakes in colder arctic regions. Such effects are of major importance for understanding climatic feedbacks on the continental C sink – source function at high latitudes. If predictions of global warming and northward expansion of the boreal biome are correct, it is likely that increasing C emissions from high latitude lakes will partly counteract the presumed increasing terrestrial C sink capacity at high latitudes.

Subject

Cicle del carboni (Biogeoquímica), Diòxid de carboni, Diòxid de carboni atmosfèric, Llacs

Subject (English)

Carbon cycle (Biogeochemistry), Carbon dioxide, Atmospheric carbon dioxide, Lakes

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Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

Citation

LUNDIN, Erik J., et al. Large difference in carbon emission - burial balances between boreal and arctic lakes. Scientific Reports. 2015. Vol. 5, num. 14248. ISSN 2045-2322. [consulted: 9 of June of 2026]. Available at: https://hdl.handle.net/2445/208381

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