Articles | Volume 10, issue 5
https://doi.org/10.5194/tc-10-2291-2016
https://doi.org/10.5194/tc-10-2291-2016
Research article
 | 
30 Sep 2016
Research article |  | 30 Sep 2016

Effects of bryophyte and lichen cover on permafrost soil temperature at large scale

Philipp Porada, Altug Ekici, and Christian Beer

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Cited articles

Atchley, A., Coon, E., Painter, S., Harp, D., and Wilson, C.: Influences and interactions of inundation, peat, and snow on active layer thickness, Geophys. Res. Lett., 43, 5116–5123, https://doi.org/10.1002/2016GL068550, 2016.
Bauer, I., Bhatti, J., Swanston, C., Wieder, R., and Preston, C.: Organic Matter Accumulation and Community Change at the Peatland–Upland Interface: Inferences from 14C and 210Pb Dated Profiles, Ecosystems, 12, 636–653, https://doi.org/10.1007/s10021-009-9248-2, 2009.
Beer, C., Lucht, W., Schmullius, C., and Shvidenko, A.: Small net carbon dioxide uptake by Russian forests during 1981–1999, Geophys. Res. Lett., 33, L15403, https://doi.org/10.1029/2006GL026919, 2006.
Beer, C., Fedorov, A., and Torgovkin, Y.: Permafrost temperature and active-layer thickness of Yakutia with 0.5-degree spatial resolution for model evaluation, Earth Syst. Sci. Data, 5, 305–310, https://doi.org/10.5194/essd-5-305-2013, 2013.
Beer, C., Weber, U., Tomelleri, E., Carvalhais, N., Mahecha, M., and Reichstein, M.: Harmonized European Long-Term Climate Data for Assessing the Effect of Changing Temporal Variability on Land–Atmosphere CO2 Fluxes, J. Climate, 27, 4815–4834, https://doi.org/10.1175/JCLI-D-13-00543.1, 2014.
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Short summary
Bryophyte and lichen cover on the forest floor at high latitudes insulates the ground and thus decreases soil temperature. This can protect permafrost soil, stabilising it against global warming. To quantify the insulating effect, we integrate a novel, process-based model of bryophyte and lichen growth into the global land surface model JSBACH. We find an average cooling effect of the bryophyte and lichen cover of 2.7 K, which implies a significant impact on soil temperature at high latitudes.