Table 4 Friedman test (p-value) results among years for silver fir basal area, mountain pine basal area, and replacement index within paired plots, grouped by altitudinal intervals of 200 m and level of protection (National Park and buffer zone). Post hoc Wilcoxon results are only given when significant (a, b, c)
Altitude (m) | Friedman test p-value (1991, 2002, 2015) | ||
|---|---|---|---|
Silver fir basal area | Mountain pine basal area | Replacement index | |
1400–1600 | 0.368 | No data | 0.368 |
1600–1800 | 8.07 × 10−6 (a, a, b) | 0.869 | 0.965 |
1800–2000 | 1.82 × 10−11 (a, b, c) | 3.95 × 10−5 (a, b, c) | 4.54 × 10−2 (ab, a, b) |
2000–2200 | 0.0476 (a, a, a) | 1.32 × 10−4 (a, b, b) | 0.013 (a, a, b) |
2200–2400 | No data | 0.867 | 0.091 |
National Park | 3.60 × 10−15 | 6.68 × 10−6 | 0.00306 |
Buffer zone | 0.0113 | 0.0617 | 0.413 |