Table 2.

Microbial community diversity indices of four SBRs.

Samples	OTUs	Chao1	Simpson	Shannon	Pielou_e	Goods_coverage
A1	2,802	2,837	0.972	7.884	0.689	0.994
A2	3,131	3,146	0.966	7.821	0.674	0.996
A3	3,091	3,106	0.989	8.752	0.755	0.996
A4	1921	1904	0.952	6.979	0.640	0.997