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. 2015 Mar 16;10(3):e0116013. doi: 10.1371/journal.pone.0116013

Fig 1. Effects of experimental warming and N addition on soil temperature and soil volumetric water content at a depth of 15 cm over the period 2008 to 2010.

Fig 1

C: Control; W: Warming; N: N addition; WN: Warming plus N addition. Vertical bars indicate the standard error of the mean (n = 6). Different lowercase letters indicate significant differences (P < 0.05) between treatments.