TABLE 5.

Diversity and richness indices relative to each sample.

Sample ID	Seq num	OTU Num1	Shannon Index2	ACE index3	Chao1 index3	Coverage4	Simpson index2
BD1	42258	526	0.93	1719.43	1018.77	0.99	0.66
BD7	47169	3395	7.14	3402.66	3396.20	1.00	0.01
SD1	69351	283	0.98	496.37	426.57	1.00	0.66
SD7	58766	640	0.93	1034.53	935.02	0.99	0.70
CD1	49884	646	2.94	819.58	736.27	1.00	0.11
CD7	56046	629	0.94	997.27	906.07	0.99	0.73

¹OTUs were defined at the 97% sequence similarity level. ²Shannon and Simpson index were community diversity parameters. A higher number of Shannon index indicates a higher diversity, whereas a higher number of Simpson indicates a lower diversity. ³ACE index and Chao1 index were community richness parameters. A higher number indicates more richness. ⁴Coverage was the sequencing depth index, reflecting if the sequencing result represents the real situation of a sample. A higher number indicates lower probability that the sequence is not detected in the sample. Coverage of 1.00 means all the possible species in a sample has been covered in the sequencing.