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The average market effect of street trees on all house values in Portland, Oregon yielded a total value of $1.35 billion, potentially increasing annual property tax revenues by $15.3 million.

Donovan, Geoffrey H., and David T. Butry. (2010). Trees in the city: Valuing street trees in Portland, Oregon. Landscape and Urban Planning, 94(2), 77-83.

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Trees

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