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Davey Resource Group, Inc. <br />Tree Inventory Analysis & Maintenance Strategy <br />Page 9 <br />●Routine, proactive maintenance, such as young tree training and routine pruning, may help <br />improve tree condition, particularly among maturing and mature trees. <br /> Figure 6. Relative age distribution of the inventoried trees. <br /> Figure 7. Inventoried tree condition ratings compared to age class. <br />38% <br />46% <br />11% <br />6% <br />35%39% <br />16% <br />10% <br />0% <br />5% <br />10% <br />15% <br />20% <br />25% <br />30% <br />35% <br />40% <br />45% <br />50% <br />Young (0-8") Established (9-17") Maturing (18-24") Mature (>24")Percent of Inventoried TreesRelative Age (Diameter Size Class) <br />Streets Parks Ideal <br />2% <br />1% <br />3% <br />13% <br />24% <br />29% <br />27% <br />36% <br />54% <br />52% <br />53% <br />38% <br />21% <br />17% <br />17% <br />13% <br />0% 20% 40% 60% <br />Mature (>24") <br />Maturing (18-24") <br />Established (9-17") <br />Young (0-8") <br />Percent of ROW TreesRelative Age Based on Size ClassExcellent Good Fair Poor & Dead <br />21