Table 2.

Alpha diversity indexes of microbial community in each sampling site.

Sample	Sequence number	Shannon	Simpson	Chao	Ace	Goods coverage
S1	71,043	5.204	0.887	915.829	952.982	0.995
S2	61,824	5.377	0.891	926.667	963.349	0.995
S3	72,531	5.464	0.893	941.568	988.044	0.995
S4	59,382	6.057	0.945	994.853	1,011.868	0.995