A tree maintenance program requires the application of sound arboricultural practices.
In order for trees to sustain themselves, they need a healthy soil with nutrients, water, and the removal of branches that self-wound or die. Tree preservation anticipates the impact of activities around trees and takes steps to mitigate the negative effect of those activities. Tree preservation includes pruning, watering programs, fertilizing, and mulching. During construction, tree preservation procedures include creating protection barricades, soil compaction therapy and monitoring.