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-planting -creo T . <br />8. If any significant tree inAdevelopment or building site <br />is cut, damaged or the area within the tree's dripline has <br />been encroached upon by grading equipment without City <br />authorization, the City may require planting of two new <br />trees. In addition, if the City determines that a damaged <br />tree will probably not survive, it shall be removed by the <br />developer. <br />a. Any trees required to be planted shall be varied in <br />species, shall maximize the use of species native to the <br />area, shall not include any species under disease epidemic <br />and shall be hardy under local conditions. Trees shall be at <br />least 2 1/2 inches in diameter for deciduous trees and eight <br />feet tall for coniferous trees. <br />b. Any trees required to be planted shall be replaced if <br />they die or appear to be dying within one year of planting by <br />the person responsible for the planting. <br />c. Before any construction or grading takes place, <br />snow fencing or erosion control fencing shall be placed <br />around the borders of woodlots or the driplines of large <br />trees to be preserved. Signs shall be placed along this <br />fence line prohibiting grading beyond the fence line. <br />SECTION V TREE AND SITE RELATED DISTURBANCES <br />A. Tree protection zones, specimen trees or stands of trees <br />designated to be saved must be protected from the following <br />damages which may occur during all phases of land disturbance <br />and construction processes. Methods of tree protection and <br />disturbance prevention are provided in Section VI. <br />1. Direct physical root damage. <br />2. Indirect root damage. <br />3. Trunk and crown disturbances. <br />B. Direct physical root damage most frequently occurs during <br />site clearing and grading operations, where transport or <br />feeder roots are cut, torn, or removed. <br />1. Transport and feeder roots tend to tangle and fuse <br />among the roots of adjacent trees. The removal of trees with <br />heavy machinery along the outer periphery of a tree save area <br />can result in considerable damage within the tree save area. <br />2. The most substantial form of root damage for all <br />root types occurs in the form of cut roots. Roots are cut in <br />grade reduction, or from trenching for underground utilities, <br />sanitary sewer, or storm sewer lines. <br />3. A more subtle form of root damage is the loss of <br />feeder roots. Feeder roots normally occur within the organic <br />layer, and the surface four inches of top soil, subsequently, <br />these roots can be easily damaged by the track action from a <br />single bulldozer pass. The stripping of top soil within a <br />tree's critical root zone can totally eliminate its feeder <br />root system. <br />C. Indirect root damage through site modification can result <br />from positive grade chances, temporary storage of fill <br />material, the sedimentation of erosion materials, soil <br />• <br />• <br />