Land use | Site | Layer | TN | SOC | Sand | Silt | Clay | pH | NH4-N | NO3-N |
cm | % | % | % | % | % | - | mg・kg−1 | mg・kg−1 | ||
Woodland | 1 | 20 - 50 | 0.07 | 0.67 | 20.7 | 54.5 | 24.8 | 4.6 | 11.2 | 1.30 |
2 | 0 - 20 | 0.07 | 0.67 | 76.7 | 9.70 | 13.6 | 4.5 | 8.30 | 31.3 | |
2 | 20 - 50 | 0.06 | 0.47 | 55.3 | 18.5 | 26.2 | 4.7 | 5.00 | 37.1 | |
3 | 20 - 50 | 0.06 | 0.51 | 27.1 | 47.2 | 25.7 | 5.1 | 7.70 | 61.0 | |
4 | 20 - 50 | 0.06 | 0.57 | 37.2 | 28.1 | 34.7 | 4.5 | 5.70 | 53.9 | |
5 | 0 - 20 | 0.07 | 0.60 | 59.5 | 20.7 | 19.9 | 4.2 | 8.70 | 7.60 | |
6 | 0 - 20 | 0.11 | 0.95 | 28.4 | 20.7 | 51.0 | 4.4 | 13.7 | 7.50 | |
7 | 0 - 20 | 0.06 | 0.62 | 69.5 | 13.7 | 16.7 | 4.6 | 11.9 | 9.40 | |
Tea garden | 8 | 20 - 50 | 0.11 | 0.83 | 50.2 | 20.9 | 28.9 | 3.4 | 14.7 | 1.50 |
9 | 20 - 50 | 0.05 | 0.40 | 56.9 | 21.8 | 21.3 | 4.7 | 11.2 | 1.70 | |
10 | 20 - 50 | 0.08 | 0.78 | 49.1 | 22.1 | 28.8 | 4.8 | 16.5 | 1.60 | |
11 | 0 - 20 | 0.07 | 0.68 | 42.4 | 24.4 | 33.2 | 4.4 | 17.3 | 6.40 | |
Paddy field | 12 | 0 - 20 | 0.29 | 2.03 | 14.4 | 54.7 | 31.0 | 4.2 | 53.2 | 58.9 |
12 | 20 - 50 | 0.15 | 0.85 | 16.2 | 58.7 | 25.1 | 5.4 | 16.3 | 20.8 | |
13 | 0 - 20 | 0.25 | 1.71 | 30.0 | 42.1 | 28.0 | 4.6 | 41.9 | 65.1 | |
13 | 20 - 50 | 0.14 | 0.83 | 29.0 | 42.4 | 28.6 | 5.7 | 12.5 | 7.00 | |
14 | 0 - 20 | 0.18 | 1.03 | 19.6 | 51.2 | 29.2 | 4.7 | 32.7 | 26.0 | |
15 | 0 - 20 | 0.23 | 1.68 | 53.8 | 29.9 | 16.3 | 5.0 | 32.8 | 7.90 | |
16 | 0 - 20 | 0.21 | 1.35 | 41.9 | 33.7 | 24.4 | 4.8 | 34.7 | 45.5 | |
17 | 0 - 20 | 0.18 | 1.08 | 42.4 | 33.9 | 23.7 | 5.0 | 30.1 | 18.4 | |
18 | 0 - 20 | 0.18 | 1.15 | 47.2 | 33.6 | 19.2 | 5.8 | 31.3 | 11.7 | |
19 | 0 - 20 | 0.26 | 1.79 | 39.2 | 37.9 | 22.9 | 4.9 | 35.7 | 60.4 | |
20 | 0 - 20 | 0.19 | 1.02 | 39.5 | 38.7 | 21.8 | 5.7 | 34.9 | 51.5 | |
21 | 0 - 20 | 0.28 | 1.64 | 16.1 | 68.4 | 15.5 | 6.8 | 34.8 | 84.6 | |
22 | 0 - 20 | 0.25 | 1.63 | 36.3 | 41.5 | 22.2 | 5.5 | 46.0 | 41.8 | |
23 | 0 - 20 | 0.27 | 1.69 | 22.9 | 52.8 | 24.3 | 4.9 | 45.1 | 54.7 | |
24 | 0 - 20 | 0.21 | 1.39 | 50.2 | 31.9 | 17.9 | 6.2 | 38.4 | 39.5 |