As used in this chapter, the following terms shall have the meaning indicated in this section. Words not defined herein shall be interpreted so as to give them the meaning they have in common usage and to give this chapter its most reasonable application.
AAN STANDARDSTree and plant standards set by the American Association of Nurserymen.
BASAL AREAThe area in square feet per acre occupied by tree stems at 4 1/2 feet above the ground, normally measured by a calibrated prism or angle gauge.
BUFFER AREAAn area of land, with plantings as specified by Chapter
180, which may be required between land uses or properties to eliminate or minimize conflicts between them.
CALIPERThe diameter of a tree trunk measured at six inches above the ground for trees less than or equal to four inches in diameter at six inches above the ground. For trees with a diameter greater than four inches at six inches above ground, the caliper shall be measured at 12 inches above ground.
CLEARINGAny activity which removes the vegetative ground cover and/or trees.
DBHDiameter at breast height which is the measurement of a tree's diameter taken at 4 1/2 feet above the ground.
DEMOLITIONDemolition shall include the destruction of all or part of a structure or the removal of all or part of any structure to any off-site location.
DAMAGESevere decline, disfigurement, discoloration, defoliation, removal or death of any tree, which is intentionally caused or is the result of recklessness or negligence.
DRIP LINEA line encircling a tree corresponding to the furthest extension of the branches of a tree which line is used, in turn, to calculate crown spread.
EXCAVATIONAny digging, scooping or other methods of removing earth materials.
FILLINGAny depositing or stockpiling of earth, stone or vegetative materials.
GRADINGAny excavating or filling of earth materials or any combination thereof, including the land in its excavated or filled condition.
GROUND COVERA low-growing dense growth of plants, such as grass, pachysandra or crown vetch, planted for ornamental purposes or to stabilize the soil and prevent soil erosion.
HEALTHYAs defined by the International Society of Arboriculture.
REMOVE OR REMOVAL(1) The actual removal of trees;
(2) Direct or indirect actions capable of resulting in the effective removal of trees through damage or poison; or
(3) Similar actions directly or indirectly capable of resulting in the death of a tree subject to the provisions of this chapter
SETBACK AREAThe required open, unoccupied space on the same lot with a main building extending the full length at front, sides, and rear of the main building as defined by Chapter
180.
SPECIMEN TREEA tree with a sixteen-inch caliper measuring four feet from the ground or a unique or endangered species, e.g., American chestnut tree, American elm tree.
THINNINGA cultural treatment made to reduce stand density of trees primarily to improve growth, enhance health, or recover potential mortality.
TOPSOILSurface soil and subsurface soil which presumably is fertile soil and ordinarily rich in organic matter and human debris.
TREEA living, woody plant having a well-defined stem, a more or less well-defined crown and which is capable of attaining a height of at least 15 feet.
TRIMTo reduce, shorten, diminish or prune a tree or parts of a tree, without substantially altering the existing shape or damaging the tree or shortening its life span.