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Davey Resource Group, Inc. <br />Tree Inventory Analysis & Maintenance Strategy <br />Page 15 <br />Table 3. Inventoried species with the highest per tree replacement value. <br />REPLACEMENT VALUE <br />SPECIES COUNT TOTAL VALULE <br />($/YR) <br />PER TREE VALUE <br />($/TREE/YR) <br />White oak 178 $977,740.89 $5,492.93 <br />American elm 10 $45,538.05 $4,553.81 <br />Eastern cottonwood 5 $18,181.02 $3,636.20 <br />Siberian elm 45 $131,875.42 $2,930.56 <br />Silver maple 51 $143,999.78 $2,823.53 <br />TREE BENEFIT RECOMMENDATIONS <br />●Large-stature, deciduous trees tend to provide the greatest benefits. The City of Orono should <br />plan to plant these types of trees wherever possible to increase the benefits provided by the <br />public trees. This may require enlarging existing tree planting spaces or creating large new tree <br />planting spaces to accommodate large street trees. It also should include preserving existing <br />large-stature trees and providing proactive care to young public trees to ensure they achieve <br />mature status in the future. <br />●The protection of existing park trees should be a priority, and succession planning to replace park <br />trees and increase tree cover in parks will have a large positive impact on tree benefits in Orono in <br />the future. <br />●Oak were often among the largest contributors to tree benefits and are not currently <br />overabundant in Orono. Planting oak will help to increase the benefits provided by public trees. <br />●The public trees in Orono account for only a fraction of the total benefits provided by the City’s <br />trees, indicating that many of the trees which provide benefits to Orono are located on private <br />property. The City of Orono should consider methods to preserve existing trees and promote new <br />tree planting on private property throughout the city to increase tree benefits. <br />242