Table 4 Characteristics of the fertility of soil organic horizons in subzones/areas
Cajander’s site types | pH | Total (g∙kg−1) | С/N ratio | Exchangeable (cmol(+)∙kg− 1) | BS (%) | Extractable P (mg∙kg− 1) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CaCl2 | H2O | C | N | acidity | Ca | Mg | K | Na | Al | ||||
Karelia, northern taiga | |||||||||||||
3 | 3.4* | 4.4 | 419 | 11.8 | 37 | 4.3 | 12.3 | 2.9 | 2.4 | 0.1 | 0.7 | 80 | 860 |
0.1** | 0.1 | 15 | 0.8 | 3 | 0.3 | 1.1 | 0.5 | 0.1 | 0 | 0.2 | 2 | 44 | |
4 | 3.4 | 4.3 | 405 | 9.3 | 46 | 4.6 | 10.8 | 2.4 | 2.2 | 0.2 | 0.9 | 76 | 803 |
0.1 | 0.1 | 13 | 0.4 | 2 | 0.3 | 0.8 | 0.2 | 0.1 | 0 | 0.2 | 2 | 31 | |
5 | 3.4 | 4.3 | 403 | 8.4 | 50 | 3.7 | 7.9 | 1.8 | 1.8 | 0.2 | 0.7 | 75 | 730 |
0.1 | 0.1 | 40 | 1.3 | 10 | 0.3 | 1.0 | 0.5 | 0.7 | 0.1 | 0.2 | 3 | 129 | |
6 | 3.0 | 4.1 | 415 | 5.3 | 78 | 7.1 | 4.8 | 1.6 | 1.6 | 0.2 | 1.9 | 53 | 588 |
Karelia, middle taiga | |||||||||||||
1 | 3.9 | 5.0 | 268 | 11.2 | 25 | 2.3 | 14.4 | 3.5 | 1.9 | 0.1 | 0.8 | 89 | 773 |
0.1 | 0.3 | 39 | 3.0 | 3 | 0.5 | 4.5 | 0.5 | 0.6 | 0.0 | 0.6 | 5 | 200 | |
2 | 3.9 | 4.8 | 434 | 15.1 | 30 | 3.4 | 21.3 | 5.6 | 2.7 | 0.1 | 0.4 | 88 | 942 |
0.2 | 0.2 | 48 | 1.6 | 3 | 0.7 | 3.4 | 1.8 | 0.4 | 0 | 0.1 | 4 | 93 | |
3 | 3.7 | 4.7 | 336 | 10.8 | 37 | 3.7 | 15.8 | 3.8 | 2.3 | 0.1 | 0.7 | 83 | 820 |
0.2 | 0.2 | 29 | 0.8 | 8 | 0.5 | 2.0 | 0.5 | 0.1 | 0 | 0.2 | 3 | 33 | |
4 | 3.3 | 4.5 | 351 | 9.0 | 42 | 4.7 | 10.4 | 2.5 | 1.7 | 0.1 | 1.5 | 72 | 671 |
0.2 | 0.2 | 30 | 0.7 | 5 | 0.7 | 1.9 | 0.5 | 0.2 | 0 | 0.4 | 5 | 41 | |
5 | 3.0 | 4.1 | 495 | 9.4 | 53 | 5.4 | 7.5 | 1.1 | 1.3 | 0.1 | 1.1 | 65 | 682 |
Karelian Isthmus, middle taiga | |||||||||||||
2 | 3.5 | 4.4 | 399 | 12.9 | 33 | 4.6 | 14.3 | 2.5 | 3.3 | 0.1 | 1.2 | 81 | 720 |
0.1 | 0.1 | 26 | 1.2 | 3 | 0.7 | 1.1 | 0.3 | 0.2 | 0 | 0.3 | 3 | 51 | |
3 | 3.6 | 4.5 | 372 | 12.2 | 32 | 4.2 | 13.5 | 2.4 | 3.1 | 0.1 | 1.5 | 82 | 686 |
0.1 | 0.1 | 18 | 0.6 | 2 | 0.4 | 0.7 | 0.2 | 0.1 | 0 | 0.3 | 2 | 29 | |
4 | 3.3 | 4.2 | 416 | 11.2 | 38 | 5.1 | 11.5 | 1.8 | 3.1 | 0.1 | 1.8 | 76 | 612 |
0.1 | 0.1 | 14 | 0.8 | 3 | 0.6 | 1.1 | 0 | 0.2 | 0 | 0.4 | 3 | 25 | |
5 | 3.4 | 4.3 | 454 | 13.6 | 33 | 3.1 | 12.2 | 1.5 | 2.1 | 0.1 | 0.6 | 84 | 514 |