Why Trees Matter<br />APGA Conference<br />2010<br />Bruce Cubberley<br />Assistant Professor, Landscape Horticulture<br />
Why Trees Matter aka the Next STEP Program<br />Ohio State University Extension <br />Secrest Arboretum (OARDC)<br />Ohio ...
Why Trees Matter Programs<br />Ohio Street Tree Evaluation Program<br />Tree Research Evaluation and Education<br />i-Tree...
Ohio Street Tree Evaluation Project<br />Started by L.C. Chadwick in mid-60s<br />96 Original Sites; Now Over 140 Sites<br...
Lavalie Hawthorn, <br />Brooklyn, Ohio<br />(Cleveland Area)<br />2005<br />
Sunburst Honeylocust, <br />Brooklyn, Ohio<br />(Cleveland Area)<br />2005<br />
http://www.ohiodnr.com/forestry/urban/ostep/<br />
Emerald Ash Borer(EAB)<br />Agrilus planipennis<br />Family:  Buprestidae<br />A Tree Killer  <br />
Teachable Moment<br />Invasive Species Teachable Moments<br />United States Forest Service i-Tree Tools <br />Environmenta...
Storm Water Remediation
Energy Savings
Increased Property Value</li></li></ul><li>Why i-Tree Matters<br />i-Tree is a software model developed by the United Stat...
i-Tree is Scale-able<br />From regional canopy goals in the Sacramento Municipal Utility District of Seven Counties…<br />...
http://www.treebenefits.com/calculator/<br />
From i-Tree: treebenefits.com<br />Trees act as mini-reservoirs, controlling runoff at the source. Trees reduce runoff by:...
i-Tree: Demonstrating That Trees Pay Us Back!<br />Street Tree Benefits in Minneapolis:<br /><ul><li>$6.8 million in energ...
$9.1 million in reduced storm water runoff
$7.1 million increase in property value
$1 million improvements to air quality</li></li></ul><li>Evaluating Plant Choice<br />Morton Ave<br />Orchard Grove<br />A...
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Horticulture and Garden Operations Mini Series: Why Trees Matter

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  • i-Tree is also very scalable, including providing informatin for individual trees. Want to tell your customer the benefits of trees in the landscape you design? Go to treebenefits.com, type in their zip code, enter a species of tree and its size, then show them what benefits it will provide once it grows to that size. For a large 36 inch pin oak that will grow in Wooster if you plant it , there is $265 dollars in annual benefits.
  • Including $144 in stormwater remediation benefits, by that tree eliminating 14, 565 gallons stormwater runoff per year.
  • And $70 increase in property values due to this 36 inch pin oak.
  • And the conservation of electricity and natural gas resources.
  • And improvement of air quality benefits.
  • As well as reduction of atmospheric carbon and the role this can play in environmental effects of increasing carbon dioxide.
  • And kooking at the i-Tree analysis of these two plantings, the environmental and aesthetic benefits of the honeylocust planting was eight times the benefits of the hawthorns. Tree selection matters!
  • The first Census was in 1995. The goal was to count all trees identified as street trees (those in yards and parks were not included) in the five boroughs of New York City. They did it, and counted and collected information on about a half million trees. They wanted information on species numbers, hazared condition of trees, and of course they also hoped that enlisting over 1300 volunteers would result in a buzz that would reslult in political clout to increase badly-underfunded tree care budgets. Alas, the result was that due to a number of factors, between 1995 and 2005, the street tree budget was cut about in half. Not encouraging.
  • But here is the next chapter of the story. A second Trees Count! Program was conducted in 2005. The difference was that this time the i-Tree program was in development, and provided data documenting the annual benefits of trees: about $122 million, or $5.60 for every $1.00 spent. The result: New York City’s Mayor Michael Bloomberg increased the street tree budget from $22 million to $62 million. The benefits of trees were far clearer with the i-Tree analysis and the desire for sustainable, green programs.
  • Horticulture and Garden Operations Mini Series: Why Trees Matter

    1. 1. Why Trees Matter<br />APGA Conference<br />2010<br />Bruce Cubberley<br />Assistant Professor, Landscape Horticulture<br />
    2. 2. Why Trees Matter aka the Next STEP Program<br />Ohio State University Extension <br />Secrest Arboretum (OARDC)<br />Ohio DNR Urban Foresters<br />Ohio State University researchers<br />Private tree industry researchers<br />Davey Tree Expert Company<br />Rainbow TreeCare<br />
    3. 3. Why Trees Matter Programs<br />Ohio Street Tree Evaluation Program<br />Tree Research Evaluation and Education<br />i-Tree Case Studies<br />Master Gardener Tree Specialization Training<br />Greening Of The Highways (Vineland Research Station—Ontario, Canada)<br />
    4. 4. Ohio Street Tree Evaluation Project<br />Started by L.C. Chadwick in mid-60s<br />96 Original Sites; Now Over 140 Sites<br />Which trees are best for our community forests <br />The “best bang for the buck(eye)”<br />
    5. 5.
    6. 6. Lavalie Hawthorn, <br />Brooklyn, Ohio<br />(Cleveland Area)<br />2005<br />
    7. 7. Sunburst Honeylocust, <br />Brooklyn, Ohio<br />(Cleveland Area)<br />2005<br />
    8. 8.
    9. 9.
    10. 10. http://www.ohiodnr.com/forestry/urban/ostep/<br />
    11. 11.
    12. 12. Emerald Ash Borer(EAB)<br />Agrilus planipennis<br />Family: Buprestidae<br />A Tree Killer <br />
    13. 13. Teachable Moment<br />Invasive Species Teachable Moments<br />United States Forest Service i-Tree Tools <br />Environmental/Economic Impacts of Trees:<br /><ul><li>Carbon Sequestration
    14. 14. Storm Water Remediation
    15. 15. Energy Savings
    16. 16. Increased Property Value</li></li></ul><li>Why i-Tree Matters<br />i-Tree is a software model developed by the United States Forest Service.<br />It is a partnership between the USFS, Davey Tree Expert Company (based in Ohio), the National Arbor Day Foundation, and the International Society of Arboriculture<br />It is a powerful research tool for determining the environmental services of trees in community forests. <br />i-Tree programs range from complex--i-Tree Streets to analyze entire urban forests, to i-Tree Eco, a tree calculator tool that requires only tree species and diameter at breast height (dbh) to provide environmental service printouts. <br />
    17. 17. i-Tree is Scale-able<br />From regional canopy goals in the Sacramento Municipal Utility District of Seven Counties…<br />…To a London planetree in your yard: or a yard of someone you know. Simply identify and measure the tree. <br />
    18. 18. http://www.treebenefits.com/calculator/<br />
    19. 19.
    20. 20.
    21. 21.
    22. 22.
    23. 23.
    24. 24.
    25. 25. From i-Tree: treebenefits.com<br />Trees act as mini-reservoirs, controlling runoff at the source. Trees reduce runoff by:<br />Intercepting and holding rain on leaves, branches and bark<br />Increasing infiltration and storage of rainwater through the tree's root system<br />Reducing soil erosion by slowing rainfall before it strikes the soil<br />
    26. 26. i-Tree: Demonstrating That Trees Pay Us Back!<br />Street Tree Benefits in Minneapolis:<br /><ul><li>$6.8 million in energy savings
    27. 27. $9.1 million in reduced storm water runoff
    28. 28. $7.1 million increase in property value
    29. 29. $1 million improvements to air quality</li></li></ul><li>Evaluating Plant Choice<br />Morton Ave<br />Orchard Grove<br />After forty years on the Brooklyn, Ohio streets, honeylocust deliver more than eight times the environmental benefits than a similar number of Lavelle hawthorns.<br />
    30. 30. Trees Count! <br />New York City’s Street Tree Census<br />NYC Forestry Programs<br />
    31. 31. The New York City Story I<br />Feb 1995: Fiona Watt hired as City Arborist for Parks and Recreation<br />Parks Commissioner Henry Stern asks her to do a comprehensive inventory of NYC trees – that year!<br />TreesCount is born: 498,470 counted<br />Over the next 10 years: Tree budget cut 50%. <br />
    32. 32. Street Tree Census Results<br />Species Composition Changes<br />
    33. 33. New York City Story II<br />2005: Second TreesCount Tree Inventory conducted.<br />NYC Linked with USFS Stratum i-Tree Analysis<br />Benefits documented: $122 million annual benefits from trees. $5.60 for every $1.00 spent<br />Tree budget increased from $22 million to $62 million. <br />

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