PT - JOURNAL ARTICLE AU - James R. Clark AU - Nelda Matheny TI - Management of Mature Trees AID - 10.48044/jauf.1991.045 DP - 1991 Jul 01 TA - Arboriculture & Urban Forestry (AUF) PG - 173--184 VI - 17 IP - 7 4099 - http://auf.isa-arbor.com/content/17/7/173.short 4100 - http://auf.isa-arbor.com/content/17/7/173.full SO - JOA1991 Jul 01; 17 AB - The management of mature trees involves the application of cultural treatments in the context of a tree biology which changes with time. Key elements in understanding of the biology of old trees are the life history strategy of individual species, the limitations on growth that develop due to structural and resource availability considerations, and the causes of mortality in forest and landscape trees. Since the biology of the tree changes with time, so must its management. Arborists can play a central role in the maintenance of a mature, stable condition. They identify routine and remedial treatments, as well as assess the ability of a tree to respond to such treatment. However, the capacity of an arborist to restore a declining tree to a stable condition is questionable.