Definitions for "DRIPLINE"
The ground that lies directly below the outermost reaches of a trees branches.
The area underneath a tree that encompasses the majority of a tree's roots. To determine the dripline, measure the circumference (in inches) of the tree at 4.5 feet height. Divide this number by 2 and then measure out that many feet from the trunk. For example, if a tree has a 40" circumference, the majority of the roots will be within 20 feet from the trunk in all directions.
the area of ground beneath the outer edge of a tree's canopy where water shed falls from the tree