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Fig. 3 | BMC Microbiology

Fig. 3

From: Soil pH: a key edaphic factor regulating distribution and functions of bacterial community along vertical soil profiles in red soil of pomelo orchard

Fig. 3

The α-diversity indices in different soil depths. The α-diversity indices were calculated; A Observed OTUs; B Shannon index; C Chao1; D ACE index. The differences between any two soil depths were tested by Wilcon test. The star represents the significance (*, P ≤ 0.05; **, P ≤ 0.01; ***, P ≤ 0.001, while ns, non-significant. RS1, RS3, and RS3 represents the soil depths of 0–20, 20–40, and 40–60 cm, respectively

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