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• <br /> Figure 1 P..c.o, a s.Ta• <br /> Figure 2 <br /> A <br /> Species Diversity Overview <br /> 30% ' / %// <br /> % / ;/ Size Cass Profile • <br /> � <br /> j% 2os / � !% <br /> 7.8% \ ( '''s j r i j%, vpA <br /> FQAxIt4U5 // � j ; ,$ i',%% <br /> 41 OTHER SPEGE3 OS <br /> 33.011 0-0 0-12 12-15 10-24 24-30 • 30-00 30• <br /> t: 0I mstse Arot■s1 <br /> 5.0 MODEL STREET TREE PROGRAM <br /> Urban trees are an integral component of the Vancouver <br /> landscape - and contribute to the overall quality of city life. <br /> The benefits of urban trees are much. greater than the <br /> traditional amenities of aesthetics and shade. 'Trees produce <br /> oxygen and reduce' noise•= and =glare. They provide visual <br /> screens and moderate temperatures. People like to have trees <br /> in their day to day - Urban environment. <br /> A healthy and well maintained urban forest does not come <br /> • about by accident.' City trees can not naturally reproducd' or <br /> • self -prune out 'dead. - or dying •brainches•4without unacceptable <br /> safety risks. Instead, the health <br /> eved through careful of the pla.nnin�l�nd <br /> _ <br /> urban forest can only be ach g <br /> systematic maintenance of the tree is population. comprised of three primary <br /> A model street tree program <br /> operations: Planting, raintenance and Free Removal. <br /> Tree planting programs are necessary to replace trees <br /> that die or must be removed due to other problems, and to <br /> continue to reforest the city's public spaces. Planting of <br /> new trees on the right t of is essential for cities to <br /> achieve the maximum potential <br /> Timely, proper tree maintenance is the key to all <br /> healthy, well managed urban forests. These programs must <br /> include routinely pruning all city trees on a regular cycle, <br /> and being prepared to handle emergency and priority <br /> maintenance in a timely and professional manner. <br /> Tree removal programs are Dead and condemned trees natural <br /> must <br /> or induced death or decline. <br /> be removed expeditiously to protect the public from hazardous <br /> conditions. <br /> Practical, professional policies relating to these basic <br /> tree maintenance operations are the key to a successful street <br /> tree program. <br /> -4- <br />