Figure 1

OTU richness (A) and Pielou’s evenness (C) of the total, abundant, and rare bacterial communities in the soil of tobacco monoculture and variation of OTU richness (B) and Pielou’s evenness (D) in the soil of tobacco-rice rotation. Box is drawn to represent values from lower 1/4 quartile to upper 1/4 quartile; P < 0.05 represent significant differences among the three taxa according to one-way ANOVA. Total whole bacterial communities; Abundant abundant taxa, Rare rare taxa.