RT Journal Article SR Electronic T1 Characteristics Of Girdling Roots On Urban Norway Maples JF Arboriculture & Urban Forestry (AUF) FD International Society of Arboriculture SP 268 OP 270 DO 10.48044/jauf.1981.064 VO 7 IS 10 A1 Tate, Robert L. YR 1981 UL http://auf.isa-arbor.com/content/7/10/268.abstract AB Girdling roots were examined on 336 street-side mature Norway maple trees (Acer platanoides) in Ann Arbor, Michigan. Most of the girdled trees were girdled by multiple, shallow, subsurface roots. There was no association between girdled trees and narrow tree lawns. Most of the trees were not girdled severely. There did not appear to be any significant effects on crown characteristics attributable to root girdling.