RT Journal Article SR Electronic T1 Root Systems of Trees-Facts and Fallacies JF Arboriculture & Urban Forestry (AUF) JO JOA FD International Society of Arboriculture SP 201 OP 205 DO 10.48044/jauf.1989.044 VO 15 IS 9 A1 Schnelle, Michael A. A1 Feucht, James R. A1 Klett, James E. YR 1989 UL http://auf.isa-arbor.com/content/15/9/201.abstract AB Roots perform vital functions for the health and well being of trees. Despite many years of research, these critical organs continue to be poorly understood. A gamut of factors; environmental, cultural, and others, dictate the health of roots and in turn the health of the entire tree. A great deal of literature exists which incorrectly describes root growth. Roots are primarily found in the upper few inches of soil and absorbing roots essential for water and mineral uptake are beyond the dripline.