3A Public Hearing 2008 0122 - Laserfiche WebLink

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Davidon Homes, July 2007 HortScience, Inc. Tree Report, Woodside Apartments Page 4 Tree age and longevity Old trees, while having significant emotional and aesthetic appeal, have limited physiological capacity to adjust to an altered environment. Young trees are better able to generate new tissue and respond to change. Species invasiveness Species which spread across a site and displace desired vegetation are not always appropriate for retention. This is particularly true when indigenous species are displaced. In this case, there were no species present that would be considered invasive. Each tree was rated for suitability for preservation based upon its age, health, structural condition and ability to safely coexist within a development environment (Table 2, following page). We consider trees with good suitability for preservation to be the best candidates for preservation. We do not recommend retention of trees with poor suitability for preservation in areas where people or property will be present. Retention of trees with moderate suitability for preservation depends upon the intensity of proposed site changes. Table 2: Tree Suitability for Preservation Woodside Apartments, San Leandro Good These are trees with good health and structural stability that have the potential for longevity at the site. No trees were of good suitability for preservation. Moderate Trees in this category have fair health and/or structural defects that may be abated with treatment. Trees in this category require more intense management and monitoring, and may have shorter life- spans than those in the "good" category. Thirty-two (32) trees were of moderate suitability for preservation. Tree No. Species Diameter (in.) 322 Sweet gum 13 323 Sweet gum 10 325 Sweet gum 9 326 Sweet gum 9 327 Purple leaf plum 6,3,1,1 328 Sweet gum 11 329 Sweet gum 8 330 Sweet gum 12 334 Sweet gurn 15 337 Coast redwood 23 338 Coast redwood 25 339 Coast redwood 21 340 Coast redwood 24 341 Coast redwood 28 342 Coast redwood 26 343 Coast redwood 23 344 Coast redwood 21 (Continued, following page)