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. 2015 Apr 21;10(4):e0123610. doi: 10.1371/journal.pone.0123610

Fig 5. The effect of warming by open top chambers on the diel BVOC emissions in a high arcitc Cassiope tetragona-dominated heath and a high arctic Salix arctica -dominated heath.

Fig 5

Mean BVOC emissions (n = 4) during a 24-hour period in control (C) and warmed (W) plots. Error bars represent standard error for the total emissions. Abbreviations for the BVOC groups as in Fig 2. The incoming photosynthetically active radiation (PAR) and chamber temperature (Ch.Temp) for the two treatments are shown. *(P<0.1), **(P<0.05) and ***(P<0.01) indicate significant differences in chamber temperature between treatments. Note different Y-axes scales for the different vegetation communities.