Table 3.
Comparison of ground cover variables for highest (> 2,115–2,945 m, N = 68) and all other sites (1,238–2,115 m, N = 193 [N = 192 for September wetness]) elevation categories. Higher brightness values indicate more bare soil and higher greenness values indicate greater vegetation cover. Wetness is a measure of canopy and soil moisture and higher values indicate greater wetness
| Tassel Cap transformation–June | ||||||
|---|---|---|---|---|---|---|
| Brightness | Greenness | Wetness | ||||
| High | Other | High | Other | High | Other | |
| Mean (SD) | 204.2 (25.0) | 236.5 (26.2) | 5.5 (11.3) | 0.8 (7.9) | −88.4 (13.0) | −98.6 (12.2) |
| Tassel Cap transformation–September | ||||||
|---|---|---|---|---|---|---|
| Brightness | Greenness | Wetness | ||||
| High | Other | High | Other | High | Other | |
| Mean (SD) | 166.3 (22.7) | 195.9 (25.1) | 5.0 (8.7) | 2.8 (6.9) | −78.6 (12.6) | −88.2 (11.3) |
*
June Tassel Cap comparisons for high vs. other analysis of variance (ANOVA) F > 13.79, P < 0.001. September Tassle Cap comparisons high vs. other ANOVA F > 33.78 P < 0.001 except for greenness (ANOVA F = 4.42, P = 0.04).