Methane Production and Consumption in Loess Soil at Different Slope Position

Table 1

Basic characteristics of loess soils at three slope positions.

Slope position	Soil depth (cm)	Corg(%)	Cinorg(%)	pH (H2O)	Sand	Silt	Clay
						(%)
Top	0–20	0.97	0.690	8.11	33.6	62.1	4.3
	0–40	0.57	0.002	8.14	16. 2	77.4	6.3
Middle	0–20	2.14	0.006	7.60	27.1	68.7	4.2
	20–40	1.42	0.275	7.91	27.5	68.3	4.2
Bottom	0–20	0.92	0.657	7.88	30.9	64.9	4.2
	20–40	0.39	0.393	7.56	34.1	61.6	4.3