Table 2.

Summary of OTU number, Chao 1, Shannon and Simpson indices based on relative abundance of bacterial sequences at four different sites

Sample	No. of OTUs (0.03)	Chao1	Shannon index	Simpson index
EBF1050	8208.38 ± 269.82c	18284.82 ± 1382.19ab	8.14 ± 0.09c	894.37 ± 163.85b
DBF1750	7490.50 ± 154.72b	20801.44 ± 1531.48b	7.75 ± 0.04b	330.32 ± 65.76a
CF2550	6544.00 ± 272.93a	18494.40 ± 1361.45ab	6.99 ± 0.19a	82.96 ± 37.67a
SAS2750	6250.50 ± 187.08a	15972.55 ± 547.60a	7.43 ± 0.09b	253.66 ± 70.68a

Data present the mean value and standard error (n = 8). The same lowercase letters within the same row mean the difference was not significant, whereas the difference was significant P < 0.05.