RT Journal Article
SR Electronic
T1 Root Growth of Accolade™ Elm in Structural Soil Under Porous and Nonporous Asphalt After Twelve Years
JF Arboriculture & Urban Forestry
FD International Society of Arboriculture
SP 297
OP 302
DO 10.48044/jauf.2019.026
VO 45
IS 6
A1 Bassuk, Nina
A1 Raffel, Gary
A1 Sax, Miles Schwartz
YR 2019
UL http://auf.isa-arbor.com/content/45/6/297.abstract
AB Accolade™ Elm trees were planted in CU Structural Soil® overlaid with porous or nonporous asphalt in 2005. At three separate points (2012, 2015, and 2016) over the last twelve years, root densities were measured with Ground Penetrating Radar to a depth of 30 inches (76.2 cm) beneath the asphalt. Roots under the porous asphalt were more numerous and tended to grow deeper in the structural soil profile. Shoot growth was reduced in trees that grew under the nonporous asphalt beginning in the eighth year after planting. CU Structural Soil® is a viable medium for tree growth and stormwater capture when paved with porous asphalt.