From: Long-term vegetation response following post-fire straw mulching
Response | Seedling density (seedlings ha−1) | Cover (%) | Seedling height (cm) | |||
---|---|---|---|---|---|---|
Ponderosa pine | Douglas-fir | Graminoid | Soil | |||
Intercept | Coefficient | 30.1 ±63.8 | −96.3 ±51.5 | −4.5 ±4.6 | −21.1 ±8.2 | −38.1 ±30.0 |
P-value | 0.646 | 0.060 | 0.328 | <0.001 | 0.204 | |
Mulch (yes or no) | Coefficient | −79.0 ±31.4 | 132.7 ±37.9 | 2.0 ±0.6 | 9.2 ±2.9 | |
P-value | 0.086 | 0.040 | 0.002 | 0.001 | ||
Transformed aspect (0 to 1) | Coefficient | −25.1 ±25.1 | 15.9 ±3.5 | 2.0 ±3.4 | ||
P-value | 0.391 | <0.001 | 0.005 | |||
Elevation (m) | Coefficient | 43.1 ±100.8 | 222.9 ±83.8 | 0.17 ±0.01 | 32.4 ±9.4 | |
P-value | 0.698 | 0.076 | <0.001 | 0.001 | ||
dNBR (NBR units) | Coefficient | 127.8 ±33.6 | ||||
P-value | 0.032 | |||||
Fire (name) | Coefficient | + | + | + | + | |
P-value | + | + | + | + | ||
Water deficit | Coefficient | 119.2 ±22.2 | 60.6 ±18.8 | 0.02 ±0.01 | 8.70 ±3.2 | |
P-value | 0.013 | 0.048 | 0.059 | 0.006 | ||
Mulch*Elevation | Coefficient | −75.4 ±37 | ||||
P-value | 0.134 | |||||
Mulch*Trasp | Coefficient | 109.7 ±31.4 | −12.4 ±2.7 | |||
P-value | 0.397 | 0.093 | ||||
Seedling species | Coefficient | + | ||||
P-value | + | |||||
Seedling age | Coefficient | 8.7 ±3.9 | ||||
P-value | 0.027 | |||||
Age*Species | Coefficient | + | ||||
P-value | + | |||||
ANOVA without mulch | P-value | 0.001 | <0.001 | <0.001 | 0.889 | <0.001 |