Document Type

Report

Publication Date

6-2026

Abstract

The Canopi team and the City of Hillsboro Urban Forestry Program completed this project to evaluate and strengthen municipal tree protection policies. Current regulations rely heavily on tree replacement rather than retention, contributing to loss of mature canopy and reduced climate, infrastructure, and equity benefits. In many cases, mature trees removed during development or infrastructure projects are replaced with small-caliper plantings that do not provide equivalent environmental or community value for decades.

As Hillsboro grows, the city faces increasing climate pressures, including urban heat island effects, stormwater impacts, invasive pests, and uneven canopy distribution across historically underserved neighborhoods. These challenges highlight the need for stronger preservation strategies that better integrate tree protection into development review, infrastructure planning, and long-term climate resilience efforts.

Description

Client: 

City of Hillsboro Urban Forestry Program

Prepared by:

Canopi Team

Rights

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s)

Persistent Identifier

https://archives.pdx.edu/ds/psu/44945

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