Table 5 Comparison of attributes of branches that failed or did not fail for nine pin oaks
From: Factors affecting branch failures in open-grown trees during a snowstorm in Massachusetts, USA
Parameter | Not fail | n | Fail | n | p |
|---|---|---|---|---|---|
Height (m) | 7.97 (0.58) | 117 | 9.04 (0.69) | 47 | 0.314 |
Diameter (cm) | 15.3 (1.22) | 117 | 16.4 (1.37) | 47 | 0.416 |
Azimuth (°) | 182 (5.38) | 117 | 191 (10.49) | 47 | 0.809 |
Angle (°) | 49.5 (4.69) | 117 | 44.5 (5.25) | 47 | 0.443 |
Length (m) | 4.69 (0.18) | 392 | 4.90 (0.22) | 93 | 0.352 |
Slenderness z (m/m) | 1.67 (0.10) | 388 | 1.61 (0.15) | 91 | 0.214 |
Σ(Diameter)y(cm) | 4.90 (0.70) | 398 | 9.73 (1.45) | 95 | 0.022 |
Σ(Length)x(cm) | 2.47 (0.30) | 398 | 5.49(0.68) | 95 | <0.001 |