Lundin, Erik J.Klaminder, J.Bastviken, DavidOlid Garcia, CarolinaHansson, S.V.Karlsson, Jan2024-03-042024-03-042015-09-152045-2322https://hdl.handle.net/2445/208381Lakes 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.8 p.application/pdfengcc-by (c) Lundin, E.J. et al., 2015http://creativecommons.org/licenses/by/4.0/Cicle del carboni (Biogeoquímica)Diòxid de carboniDiòxid de carboni atmosfèricLlacsCarbon cycle (Biogeochemistry)Carbon dioxideAtmospheric carbon dioxideLakesinfo:eu-repo/semantics/article7173642024-03-04info:eu-repo/semantics/openAccess