Table 4 Soil C and N stocks in monoculture stands of different tree species and a polyculture stand
Soil depth (cm) | Soil C stock (kg m−2) | Soil N stock (g m−2) | ||||||
|---|---|---|---|---|---|---|---|---|
B. pendula | A. glutinosa | F. sylvatica | Polyculture | B. pendula | A. glutinosa | F. sylvatica | Polyculture | |
0–10 | 2.38 ± 0.28a | 2.04 ± 0.09ab | 1.59 ± 0.23b | 2.11 ± 0.17ab | 234 ± 10a | 225 ± 8a | 212 ± 18a | 226 ± 11a |
10–20 | 1.65 ± 0.07a | 1.56 ± 0.10a | 1.17 ± 0.12b | 1.36 ± 0.09ab | 185 ± 13a | 181 ± 9a | 157 ± 10a | 174 ± 15a |
20–30 | 1.03 ± 0.09a | 1.11 ± 0.08a | 0.94 ± 0.16a | 0.85 ± 0.09a | 133 ± 9a | 156 ± 10a | 137 ± 14a | 128 ± 12a |
30–50 | 1.26 ± 0.14a | 1.21 ± 0.12a | 0.91 ± 0.04a | 1.06 ± 0.10a | 182 ± 17a | 199 ± 3a | 183 ± 37a | 164 ± 15a |
Total (0–50 cm) | 6.32 ± 0.48a | 5.92 ± 0.28a | 4.61 ± 0.37a | 5.38 ± 0.13a | 734 ± 21a | 744 ± 32a | 689 ± 51a | 692 ± 33a |