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The Davey Bulletin Nov-Dec 2016

The Davey Tree Expert Company provides residential and commercial tree service and landscape service throughout North America. Read our Flipbooks for helpful tips and information on proper tree and lawn care.

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20 The Davey Bulletin | November/December 2016 i-TREE TURNS 10 Ten years ago, convincing municipal and residential clients of the value of their trees – and the importance of planting and maintaining them – proved a tall task for many arborists. That started to change with the introduction in 2006 of i-Tree, an integrated suite of software products and urban forestry assessment tools designed to assess urban forests and the benefits they provide. i-Tree grew out of a partnership between Davey, the U.S. Forest Service, Arbor Day Foundation, Society of Municipal Arborists, International Society of Arboriculture and Casey Trees. "Ten years ago, when we first launched i-Tree, we were focused on the municipal arborist," said Scott Maco, director of research and development, the Davey Institute. "The goal was advocacy, demonstrating that trees do have value and they're worth the cost to plant and maintain. And that was a real struggle for urban foresters and arborists 10 years ago." Before the introduction of i-Tree, arborists had little evidence to argue with in favor of supporting their budgets. Arborists knew trees captured storm water, provided energy-saving shade and improved air quality, but they couldn't quantify those benefits. Municipalities commonly cut into or eliminated urban forestry budgets in favor of supporting traditional public services. "Fast-forward to today, and the landscape has changed," Maco said. "The idea of quantifying ecosystem services is still new, but now, thanks to i-Tree, we have data that translates into language to help us make management decisions and encourage better stewardship of the urban forest." MY DAVEY i-Tree users worldwide: 125,000 U.S. – 112,000 Australia – 2,600 Canada – 2,300 Mexico – 300 China – 307 Brazil – 221 Members of the i-Tree programming team who work at the Davey Institute from left are: Mike Binkley, Lianghu Tian, Kevin Whalen and David Ellingsworth. Left: Promotional tags like this one showcasing the benefits a single tree can provide are calculated using the National Tree Benefit Calculator, developed through i-Tree. " …thanks to i-Tree, we have data that help us encourage better stewardship of the urban forest. – Scott Maco director of research and development Davey Institute "

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