Diversity and Distribution of Archaea Community along a Stratigraphic Permafrost Profile from Qinghai-Tibetan Plateau, China

Table 1

Physiochemical properties of soil samples at different depths.

Soil depth (cm)	Temperature (°C)	pH	Sand (%)	Silt (%)	Clay (%)	Average grain size (m)	Standard deviation ()	Water content (%)	TOC (%)	CH4 (nmol/g)
3–5	18.34	6.79	16.33	72.40	11.26	5.68	1.80	46.52	9.01	4.1
13–15	3.68	6.70	7.99	75.56	16.45	6.25	1.73	25.56	3.02	19.9
23–25	1.85	6.74	13.19	69.81	17.00	6.18	1.91	21.35	2.43	188.3
33–35	0.44	6.60	8.06	71.45	20.49	6.46	1.82	17.18	2.43	79.3
43–45	−0.12	6.44	10.85	69.79	19.36	6.30	1.90	19.23	1.76	6.7
53–55	−0.24	6.57	18.73	66.84	14.43	5.84	1.99	20.91	1.61	22.5
63–65	−0.45	6.43	15.00	68.96	16.05	6.06	1.94	25.54	1.96	16.1