RT Journal Article
SR Electronic
T1 Comparison of Structural and Noncompacted Soils for Trees Surrounded by Pavement
JF Arboriculture & Urban Forestry (AUF)
FD International Society of Arboriculture
SP 164
OP 169
DO 10.48044/jauf.2006.022
VO 32
IS 4
A1 Thomas Smiley, E.
A1 Calfee, Lisa
A1 Fraedrich, Bruce R.
A1 Smiley, Emma J.
YR 2006
UL http://auf.isa-arbor.com/content/32/4/164.abstract
AB Trees in areas surrounded by pavement often have inhospitable rooting environments, which shorten their useful life expectancy. This trial was established to compare five different soil treatment options under pavement. Snowgoose cherry (Prunus serrulata) and Bosque lacebark elm (Ulmus parvifolia) were planted into 5.4 m3 (189 ft3) of medium containing compacted soil, gravel/soil mixture, Stalite, Stalite/soil mixture, or noncompacted soil and covered with concrete. A variety of growth and health parameters were measured after 14 months. It was found that there was more trunk diameter growth with the noncompacted treatment than the Stalite and Stalite/soil treatments; more twig growth in the noncompacted and gravel/soil treatments than all others; higher relative chlorophyll rating in the noncompacted treatment than all others; and more root growth in the noncompacted treatment (elms only). Suspended pavement over noncompacted soils provided the greatest amount of tree growth and health and should be considered when designing urban planting sites for trees.