Table 4.
Comparison of the canopy leaching values (mmol m−2 year−1) of K+, Mg2+, and Ca2+ between deciduous (Dec) and coniferous (Con) species during the annual, growing, and dormant periods in this and previous studies
| Canopy leaching (mmol m–2 year–1) | |||||||
|---|---|---|---|---|---|---|---|
| Elements | Annual | Growing | Dormant | Site | |||
| Dec | Con | Dec | Con | Dec | Con | ||
| K+ | 27.8 (8.6) | 23.5 (1.9) | 22.8 (5.6) | 18.9 (1.5) | 5.2 (2.8) | 5.0 (1.2) | Ontario |
| 39.6 | 26.2 | 37.0 | 20.8 | 2.1 | 5.4 | Quebec | |
| 32.9 | 21.3 | 28.0 | 14.2 | 4.5 | 7.9 | Merksplas | |
| 80.0 (25.3) | 62.4 (12.2) | 67.7 (31.2) | 40.1 (8.0) | 11.5 (6.3) | 20.3 (5.2) | Chichibu | |
| 114.4 (10.1) | 77.8 (7.6) | 107.3 (10.5) | 55.5 (6.4) | 7.1 (2.7) | 21.5 (4.3) | Tanashi | |
| Mg2+ | 5.0 (0.9) | 5.0 (0.4) | 4.1 (0.2) | 3.4 (0.3) | 1.0 (0.6) | 1.9 (0.6) | Ontario |
| 3.2 | 4.0 | 2.9 | 2.6 | 0.4 | 1.5 | Quebec | |
| 2.8 | 3.3 | 2.6 | 2.8 | 0.5 | 0.9 | Merksplas | |
| 4.3 (0.5) | 6.5 (2.2) | 3.1 (0.9) | 3.8 (1.4) | 1.1 (0.5) | 2.5 (1.0) | Chichibu | |
| 11.8 (1.2) | 12.0 (3.6) | 10.9 (1.1) | 9.1 (3.1) | 1.0 (0.4) | 3.1 (0.6) | Tanashi | |
| Ca2+ | 11.1 (3.8) | 15.5 (3.0) | 8.6 (1.3) | 9.2 (0.3) | 3.3 (2.4) | 7.3 (3.3) | Ontario |
| 8.1 | 8.9 | 6.9 | 5.7 | 1.2 | 3.4 | Quebec | |
| − 0.5 | − 3.1 | 1.6 | − 0.3 | − 2.1 | − 2.2 | Merksplas | |
| 8.2 (2.1) | 29.3 (4.9) | 5.3 (2.4) | 20.4 (4.1) | 3.0 (1.3) | 8.4 (2.0) | Chichibu | |
| 20.8 (3.2) | 28.6 (4.9) | 16.1 (2.1) | 21.1 (4.2) | 4.7 (1.4) | 7.4 (1.6) | Tanashi | |
Values in parentheses are standard deviations