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The City of Portland, Oregon

Portland Parks & Recreation

Healthy Parks, Healthy Portland

Phone: 503-823-7529

1120 SW Fifth Avenue, Portland, OR 97204

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Tree Canopy and Inventory

Portland's urban trees are the soul of a city known for its progressive land-use planning and extensive green infrastructure. Trees are a crucial part of the cityscape, softening and beautifying the built environment, improving neighborhood safety and livability, and providing vital ecosystem services such as air purification, temperature mitigation, and stormwater interception. Effective and efficient management of the urban forest relies on an understanding of the structure and function of the resource, as well as the benefits it provides.

Canopy cover has been identified as an important measure of urban forest health by the City of Portland. Canopy cover is a measure of Portland Parks & Recreation's bureau-wide performance, and is also cited as an important indicator in the Portland Urban Forest Management Plan (2004), Urban Forest Action Plan (2007), Climate Action Plan (2009), and the Portland Plan (2012). Monitoring Portland's tree canopy is important in order to understand how canopy may be changing, and understanding canopy trends will allow managers to make important decisions regarding management strategies.