Effects of experimental treatments on the OTU richness of 16 dominant bacterial phyla/classes.

<p>Three-way ANOVA was used to test the effect of experimental treatments. For clarity, only the significant statistical results (<i>P</i><0.05) are shown in the figure. The bars represent one standard error (n = 4). The black and gray columns represent the treatments without and with mowing, respectively. The number in the brackets following the phylum/class name (e.g., 232 in Acidobacteria(232) in Fig. 3a) represents the sampled sequence number from which OTU richness was calculated.