Table 1.
Characteristics of selected soil properties.
| Forest stand | NH4-N (mg/kg) | NO3-N (mg/kg) | TN | TKN | Sand | Silt (%) | Clay | Total Carbon | CEC (cmol (+)/kg) | TC:TN | TC:TKN | pH |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1957N | 14.35 ± 0.7 | 22.43 ± 0.8 | 0.26 ± 0.8 | 0.25 ± 0.6 | 31.33 ± 0.7 | 44.67 ± 0.7 | 30.67 ± 0.7 | 2.28 ± 0.7 | 10.22 ± 0.8 | 8.77 ± 0.7 | 9.21 ± 0.6 | 4.80 ± 0.5 |
| 1966N | 39.17 ± 0.7 | 45.10 ± 0.7 | 0.39 ± 0.8 | 0.43 ± 0.7 | 18.00 ± 0.9 | 25.00 ± 0.8 | 57.00 ± 0.6 | 3.72 ± 0.4 | 5.93 ± 0.8 | 9.62 ± 0.7 | 8.73 ± 0.5 | 4.10 ± 0.5 |
| 2009N | 23.62 ± 0.8 | 20.38 ± 0.7 | 0.27 ± 0.6 | 0.27 ± 0.8 | 7.33 ± 0.8 | 45.33 ± 0.8 | 47.33 ± 0.8 | 1.98 ± 0.7 | 5.15 ± 0.8 | 7.44 ± 0.8 | 7.29 ± 0.7 | 4.40 ± 0.7 |
| NatN | 31.00 ± 0.6 | 21.35 ± 0.8 | 0.26 ± 0.8 | 0.26 ± 0.7 | 11.67 ± 0.8 | 39.67 ± 0.6 | 48.67 ± 0.8 | 1.98 ± 0.7 | 4.05 ± 0.6 | 7.66 ± 0.7 | 7.67 ± 0.7 | 4.10 ± 0.6 |
| 1943S | 43.72 ± 0.8 | 0.98 ± 0.6 | 0.31 ± 0.8 | 0.31 ± 0.9 | 8.67 ± 0.7 | 40.33 ± 0.0.8 | 51.33 ± 0.8 | 2.89 ± 0.6 | 9.14 ± 0.8 | 9.34 ± 0.4 | 9.21 ± 0.8 | 4.20 ± 0.7 |
| 1956S | 25.17 ± 0.7 | 9.77 ± 0.9 | 0.27 ± 0.7 | 0.30 ± 0.8 | 28.00 ± 0.9 | 33.67 ± 1.6 | 39.00 ± 0.8 | 2.43 ± 0.6 | 6.18 ± 0.5 | 9.04 ± 0.7 | 8.06 ± 0.7 | 4.80 ± 0.8 |
| 1968S | 24.63 ± 0.7 | 26.12 ± 1.1 | 0.35 ± 0.8 | 0.37 ± 0.8 | 23.00 ± 1.1 | 27.00 ± 0.7 | 50.00 ± 0.7 | 3.38 ± 0.6 | 11.21 ± 0.7 | 9.71 ± 0.8 | 9.25 ± 0.5 | 5.00 ± 0.7 |
| NatS | 8.19 ± 0.7 | 81.00 ± 1.2 | 0.56 ± 0.7 | 0.44 ± 0.7 | 14.33 ± 0.9 | 15.33 ± 0.6 | 69.67 ± 1.1 | 5.64 ± 0.4 | 23.03 ± 0.7 | 10.04 ± 0.9 | 12.82 ± 0.8 | 5.20 ± 0.8 |
TN, Total Nitrogen; TKN, Total Kheldhal Nitrogen; NH4-N, Ammonium Nitrogen; NO3-N, Nitrate Nitrogen; CEC, Cation Exchange Capacity, values are average ± standard deviation.