From: Effect of land use, season, and soil depth on soil microbial biomass carbon of Eastern Himalayas
Soil properties | Subtropical forest | Cardamom agroforestry | Paddy cropland | ||||||
---|---|---|---|---|---|---|---|---|---|
0–15 cm | 15–30 cm | Mean | 0–15 cm | 15–30 cm | Mean | 0–15 cm | 15–30 cm | Mean | |
Sand (%) | 42.80 ± 4.40a | 42.23 ± 3.20a | 42.52 ± 3.80a | 47.00 ± 3.01a | 46.63 ± 3.41a | 46.82 ± 3.21a | 39.00 ± 3.40a | 38.11 ± 3.21a | 38.56 ± 3.31a |
Silt (%) | 30.62 ± 2.80a | 31.02 ± 3.21a | 30.82 ± 3.01a | 30.00 ± 2.78a | 30.21 ± 3.02a | 30.11 ± 2.90a | 32.70 ± 3.40a | 31.21 ± 2.55a | 31.96 ± 2.98a |
Clay (%) | 26.58 ± 3.20a | 26.75 ± 2.41a | 26.67 ± 2.81a | 23.00 ± 5.32a | 23.16 ± 3.21a | 23.08 ± 4.26a | 28.30 ± 4.20a | 30.68 ± 2.34a | 29.49 ± 3.27a |
BD (g cm−3) | 0.75 ± 0.05a | 0.81 ± 0.06b | 0.81 ± 0.06ab | 0.70 ± 0.05a | 0.73 ± 0.05b | 0.72 ± 0.05ab | 0.62 ± 0.07a | 0.77 ± 0.04b | 0.70 ± 0.06ab |
Moisture (%) | 35.40 ± 3.60a | 24.21 ± 0.23b | 29.81 ± 1.92ab | 37.00 ± 5.62a | 31.32 ± 5.62b | 34.16 ± 5.62ab | 41.02 ± 0.89a | 34.21 ± 0.45b | 37.62 ± 0.67ab |
pH | 5.61 ± 0.07a | 5.57 ± 0.05a | 5.59 ± 0.06a | 5.40 ± 0.05a | 5.34 ± 0.03a | 5.37 ± 0.04a | 5.05 ± 0.06a | 5.00 ± 0.05a | 5.03 ± 0.06a |
C (%) | 4.34 ± 0.30a | 3.65 ± 0.45 b | 4.00 ± 0.38c | 4.09 ± 0.35a | 3.64 ± 0.36b | 3.87 ± 0.35c | 3.16 ± 0.19a | 2.85 ± 0.03b | 3.01 ± 0.11c |
TN (%) | 0.32 ± 0.07a | 0.25 ± 0.03b | 0.29 ± 0.05c | 0.30 ± 0.05a | 0.25 ± 0.04b | 0.28 ± 0.05c | 0.22 ± 0.03a | 0.20 ± 0.04b | 0.21 ± 0.04ab |
P (%) | 0.05 ± 0.01a | 0.03 ± 0.01b | 0.04 ± 0.01ab | 0.04 ± 0.01a | 0.02 ± 0.01b | 0.03 ± 0.01c | 0.02 ± 0.01a | 0.01 ± 0.01b | 0.02 ± 0.01ab |
SOC stock (Mg C ha−1) | 40.99 ± 4.01a | 38.17 ± 3.78b | 39.58 ± 3.90c | 40.41 ± 2.93a | 35.89 ± 4.80b | 38.15 ± 3.86ab | 34.16 ± 2.69a | 31.64 ± 1.42b | 32.90 ± 2.06ab |
C/N (%) | 13.56a | 14.4b | 13.98ab | 13.63a | 14.56a | 14.10a | 14.36a | 14.25a | 14.31a |
HSD (α = 5%) = 4.33 |