Extended Data Fig. 6: Cumulative soil organic matter (SOM)-derived aerobic CO2 production after 161 days incubation of permafrost with or without Soil transfer (bars with black outline correspond to values in Fig. 2a), and with addition of nutrients (NPK), 13C-cellulose and their combination. | Nature Geoscience

Extended Data Fig. 6: Cumulative soil organic matter (SOM)-derived aerobic CO2 production after 161 days incubation of permafrost with or without Soil transfer (bars with black outline correspond to values in Fig. 2a), and with addition of nutrients (NPK), 13C-cellulose and their combination.

From: Carbon and nitrogen cycling in Yedoma permafrost controlled by microbial functional limitations

Extended Data Fig. 6

CO2 production of the donor soil is shown in the inset as measured when incubated with nutrients (solid red outline), and estimated when incubated without nutrients using data from ref. 52 (Fontaine et al., 2011 (10.1016/j.soilbio.2010.09.017, dashed black outline). The green ‘+’ symbol in the ‘Permafrost + Soil transfer’ black outline bar represents the expected effect of Soil transfer assuming no biotic interactions (that is 97.5% CO2 production of control soil + 2.5% CO2 production of donor soil without NPK). ANOVA statistics and effect sizes shown are derived from permafrost only, means ± s.e.m. (n = 3).

Back to article page