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. 2018 Jun 6;12(9):2129–2141. doi: 10.1038/s41396-018-0176-z

Fig. 2.

Fig. 2

Potential aerobic respiration of soils from different depths in control and decadal in situ deep-thaw plots during laboratory incubation at 11 °C, measured for 1 week after 1 month pre-incubation, expressed per gram soil dry weight (a) and per gram soil organic matter (b); samples to the right of the dotted line are from permanently frozen soil layers; means ± SE (n = 6). Asterisks denote significant effects (*P < 0.05; ***P < 0.001; n.s. non significant), letters denote significant differences between depths