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. 2017 Apr 11;8(9):1042–1050. doi: 10.1111/2041-210X.12764

Figure 4.

Figure 4

Soil respiration (Rsoil, left‐hand panels) measured monthly in subplots with daily applications of root exudate solution (RE, yellow triangles) or a procedural control solution (CP, blue circles); and barplots showing the significant increase in Rsoil in RE compared to CP subplots (right‐hand panels) within litter removal plots (0L) but not control plots (CT); means ± SE are given for n = 5. The Automated Root Exudate System (ARES) treatment periods corresponding to the main growing seasons in 2015 and 2016 are indicated with black horizontal lines; the dotted red line (left) indicates the mean soil temperature at 0–10 cm depth.