Table 2.

Genus level identification of the archaeal sequences (Only relative abundances of identified Class and Genus higher than 1 % were listed)

	MM1	MM2	MM3	MT1	MT2a	MT2b	MT3a	MT3b	MT4	SM1	SM2	SM3	SM4	SM5
Methanospirillum	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	9.72	6.81	9.72	10.28	2.03
Methanoregula	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	6.25	3.96	3.01	0.40	0.00
Methanolinea	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	16.67	5.49	8.33	1.19	2.25
Methanosphaerula	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	1.74	1.98	1.39	0.79	0.00
Methanofollis	0.00	0.25	0.00	0.10	6.84	4.83	5.09	5.08	3.46	1.39	0.88	0.69	0.00	0.00
Methanomicrobium	0.00	4.18	0.00	0.00	2.56	4.14	2.62	2.43	1.73	0.35	0.00	0.00	0.40	0.00
Methanoculleus	1.03	86.24	11.36	1.48	75.21	72.41	81.91	80.44	49.86	1.04	1.32	1.39	22.13	0.90
Methanogenium	0.52	0.00	4.55	0.00	0.00	0.00	0.05	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Methanosaeta	0.00	0.00	3.41	0.00	0.00	0.00	0.00	0.00	0.09	22.57	45.71	48.15	40.71	59.46
Methanosarcina	27.32	0.25	23.86	90.41	0.00	0.69	0.14	1.74	34.28	0.00	0.00	0.00	0.00	0.23
Methanobrevibacter	61.86	0.49	34.09	0.20	5.13	3.45	0.57	0.38	0.82	0.69	1.54	0.46	2.37	3.60
Methanobacterium	1.55	0.25	4.55	0.20	0.00	2.07	0.00	0.08	0.27	0.35	0.88	1.39	0.40	11.49
Methanosphaera	6.19	0.00	6.82	0.10	0.85	0.00	0.14	0.30	0.09	0.00	1.10	0.46	0.00	0.68
Others	0.00	0.25	1.14	0.10	0.85	0.69	0.00	0.30	0.09	2.78	0.22	0.23	0.79	0.45
Unclassified	1.55	8.11	10.23	7.42	8.55	11.72	9.47	9.25	9.30	36.46	30.11	24.77	20.55	18.92