Table 2. Number of sequences, OTUs, classification and diversity indexes for each sample.

Sample DNA	Seq No.	OTUs	Phylum	Class	Order	Family	Genus	Shan	Chao1
CTR_4D	17048	595	4	9	9	14	23	4.27	823.4
CTR_7D	26031	2336	3	9	9	14	27	4.95	3837.2
BPP_4D	24305	682	4	8	9	13	21	4.20	927.8
BPP_7D	33008	2406	5	12	11	15	25	5.64	3563.7
Et_4D	22228	630	4	8	9	13	22	4.07	793.7
Et_7D	28806	1990	5	12	13	19	30	5.30	2874.7
BPP + Et_4D	20844	499	4	11	12	15	24	3.56	713.7
BPP + Et_7D	27980	3300	4	11	12	16	28	5.58	5077.8

OUT, Operational taxonomic unit; Shan, Shannon diversity index; Chao1, Chao1 diversity index