RT Journal Article SR Electronic T1 THE EFFECTS OF PRUNING TYPE ON WIND LOADING OF ACER RUBRUM JF Arboriculture & Urban Forestry (AUF) FD International Society of Arboriculture SP 33 OP 40 DO 10.48044/jauf.2006.005 VO 32 IS 1 A1 E. Thomas Smiley A1 Brian Kane YR 2006 UL http://auf.isa-arbor.com/content/32/1/33.abstract AB The wind load, bending moment, height, and weight were determined for 81 red maples (Acer rubrum) before and after pruning. Trees were thinned, reduced, lion tailed, or stripped of foliage. All three pruning treatments reduced wind load significantly compared to unpruned trees at all tested velocities (11, 16, and 20 m/sec [25, 35, and 45 mph]). Reduction in wind load increased with increasing velocity. Differences in wind-load reduction between reduction pruning and thinning were not significant at any velocity. The reduction in wind load was linearly related to the amount of weight removed by pruning treatments. Compared to the same trees prior to pruning, the center of pressure height was significantly lowered on thinned and reduced trees, while the center of pressure height did not change on lion-tailed trees.