All land developments shall be required to install, maintain, and guarantee plant materials as required herein for the visual and other environmental benefits these plants will provide, as well as for the specific benefits of buffering or screening, or otherwise creating spaces. A landscape plan prepared by a registered landscape architect shall be submitted as part of the preliminary plan submission for all residential land development of 10 acres (40,470 square meters) or more and for all nonresidential development.
A. Definitions. As used in this section, the following terms shall have the meanings indicated:
CALIPER OF A TREEThe diameter of the trunk of a tree measured four feet (1.2192 meters) (d.b.h.) above the ground level ("d.b.h." is the diameter at breast height).
GUYINGThe fastening of a tree with a nylon strap to two or three hardwood stakes that would allow the new tree to sway, but not be able to blow over. They should be removed after one to two years.
HEDGEROWSA line of plants that may occur naturally where seeds collect and are left undisturbed, such as along fencelines, property lines, or between fields or that is specially planted, e.g., to act as a wind break.
MATURE TREEAny tree of six inches (15.24 centimeters) or more in caliper, whether standing alone, in tree masses, or woodlands. A mature tree shall be a healthy specimen, and shall be a desirable species as determined by the Township.
PUBLIC NUISANCEAny tree afflicted with a disease or infested with insects which threatens to injure or destroy other trees in the Township; dead or dying trees; a tree or limb(s) that obstructs streetlights, traffic signs, sight lines, free passage of pedestrians or vehicles; a tree that poses a threat to safety.
ROOT BALLThe portion of a tree that contains the roots and soil which can either be balled and burlapped (B & B) or in a container designed to transport a tree to a new location.
STREET TREETrees planted along a roadway that are in line with other trees that run parallel with and are intended to line the roadway with trees.
TOPPING OFF TREESThe severe cutting back of the limbs of the crown of a tree to such a degree so as to remove the normal canopy and disfigure the tree.
WOODLANDA stand of predominantly native vegetation covering at least 1/4 acre (1,011.75 square meters).
B. Conservation of existing vegetation. All land development shall be designed so as to minimize loss of mature trees over six inches (15.24 centimeters) in caliper, hedgerows and woodlands. As determined by the Board of Supervisors, the preservation of existing desirable mature trees, hedgerows and woodlands may be counted in lieu of the landscape requirements herein, thereby reducing the amount of new plant material except street trees that would otherwise be required to be planted. It shall be incumbent on the applicant to prove that the plan minimizes disturbance of these trees and woodlands, given the permitted development proposed. The plan shall reflect the following:
(1) A plan of existing vegetation to remain as part of the landscape plan for a land development shall be prepared and submitted as part of the preliminary plan submission. The existing vegetation shall be physically protected throughout the construction process. Prior to major clearing or construction, a temporary physical barrier such as a snow fence shall be erected a minimum of one foot (0.3048 meters) beyond the dripline on all sides of stands or vegetation or individual trees shown to remain. The barrier shall be placed to prevent disturbance to, or compaction of, soil inside the barrier and shall remain in place until construction is complete. The specific method of preserving existing vegetation shall be noted on the landscape plan.
(2) A plan of the existing vegetation to be lost due to the buildings, clearings, roads and/or grading shall be prepared and submitted as part of the preliminary plan submission. All mature trees over six inches (15.24 centimeters) in caliper as measured one foot (0.3048 meters) above the ground level which are to be lost shall be identified by species and caliper. A tabulation of this data shall be provided as a note on the plan.
(3) The developer shall be required to plant the identical number of trees to be removed elsewhere on this site or plant the identical number of trees to be removed in Township parks in accordance with a plan prepared by the developer and approved by the Township Engineer. All replacement trees shall be a minimum of 2 1/2 inches (6.35 centimeters) as measured one foot (0.3048 meters) above the ground level.
C. Street trees. Street trees shall be required in accordance with the Towamencin Township Engineering Standards, as last amended.
D. Buffer yards. Buffer yards are required between subdivisions and land developments and along existing streets. The extent of buffering required shall be determined by the type of use proposed and the adjacent uses and streets surrounding the proposed development. The buffer yard standards are provided in the Towamencin Township Engineering Standards, as last amended.
E. Landscaping of off-street parking areas. Within the parking facility, landscaping shall be in accordance with the Towamencin Township Engineering Standards, as last amended.
F. Detention basin landscaping. Within any detention basin, landscaping shall be in accordance with the Towamencin Township Engineering Standards, as last amended.
G. Landscape requirements for multifamily developments. For all multifamily developments, the following minimum landscaping shall be provided either on lot or within the general open space in addition to all other required street tree, parking and buffer requirements:
(1) Any of the following minimum landscaping shall be required for each dwelling unit:
(a) One two-and-one-half-inch (6.35 centimeters) caliper shade tree and one of the following:
[1] One four- to five-foot (1.2192 to 1.524 meters) evergreen tree;
(2) All approved plant material shall conform to the plant material listed in the Towamencin Township Engineering Standards, as last amended.