Table 2 Cation exchange capacity (CEC), base saturation (BS), pH, organic carbon content (C), total nitrogen content (N), and aqua regia extractable P content (P) in the litter layer and different mineral soil depths of the 79 plots
From: Phosphorus nutrition of beech (Fagus sylvatica L.) is decreasing in Europe
pH (CaCl2) | BS (%) | C (g kg−1) | N (g kg−1) | P (mg kg−1) | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MV | SD | Min | Max | MV | SD | Min | Max | MV | SD | Min | Max | MV | SD | Min | Max | MV | SD | Min | Max | ||||||
Litter layer | 3.7 | ± | 3.4 | (2.7 | 5.9) | 82 | ± | 16 | (44 | 99) | 407 | ± | 58 | (228 | 488) | 16.3 | ± | 3.0 | (8.6 | 22.8) | 966 | ± | 286 | (447 | 1608) |
0–10 cm | 3.5 | ± | 3.3 | (2.6 | 7.0) | 45 | ± | 34 | (6 | 100) | 60 | ± | 42 | (19 | 195) | 3.6 | ± | 2.4 | (1.1 | 10.7) | 512 | ± | 308 | (52 | 1487) |
10–20 cm | 3.9 | ± | 3.8 | (3.0 | 7.4) | 38 | ± | 36 | (3 | 100) | 31 | ± | 27 | (6 | 111) | 2.0 | ± | 1.6 | (0.5 | 6.9) | 422 | ± | 313 | (68 | 1482) |
20–40 cm | 4.1 | ± | 4.1 | (3.3 | 7.5) | 43 | ± | 37 | (3 | 100) | 21 | ± | 19 | (4 | 65) | 1.4 | ± | 1.2 | (0.3 | 5.7) | 395 | ± | 315 | (81 | 1534) |
40–80 cm | 4.2 | ± | 4.2 | (3.6 | 7.3) | 52 | ± | 40 | (4 | 100) | 9 | ± | 11 | (1 | 44) | 0.7 | ± | 0.7 | (0.1) | (3.1) | 399 | ± | 355 | (76 | 1719) |