Article Figures & Data
Figures
- Figure 1.
Regression relationship and 95% prediction interval for the length of internal decay (cm) of leaders and length of external decay (X1) in centimeters at leader diameter at the heading cut (X2) of 14 cm (5.6 in), leader diameter at the base (X3) of 22 cm (8.8 in), and leader length (X4) of 251 cm (100.4 in) in silver maple trees converted from roundover to V-trims during electrical line clearance operations. R2 for the regression model was 0.45.
- Figure 2.
Regression relationship and 95% prediction interval for the volume of internal decay (cm3) of leaders and length of external decay (X1) in centimeters at leader diameter at the heading cut (X2) of 14 cm (5.6 in) and leader diameter at the base (X3) of 22 cm (8.8 in) in silver maple trees converted from roundover to V-trims during electrical line clearance operations. R2 for the regression model was 0.82.
- Figure 3.
Regression relationship and 95% prediction interval for the square root of percent volume loss resulting from decay of leaders and length of external decay (X1) in centimeters at diameter decay at heading cut (X5) of 4 cm (1.6 in) in silver maple trees converted from roundover to V-trims during electrical line clearance operation. R2 for the regression model was 0.57.
Tables
- Table 1.
Percentage of parent stems (leaders) in each distance class (cm) in which (A) internal and (B) external decay began from the heading cut in silver maple leaders converted from roundover to V-trims during electrical line clearance operations.
A. Internal decay Distance (cm) No. of leaders Percentage with decay 0 32 46.4 1 to 50 23 33.3 >50 7 10.1 No decay 7 10.1 B. External decay Distance (cm) No. of leaders Percentage with decay 0 to 50 41 59.4 51 to 100 5 7.2 >100 9 13.0 No decay 14 20.3
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