USDA Forest Service

Pacific Northwest Research Station

Pacific Northwest Research Station
333 SW First Ave.
Portland, OR 97204

(503) 808-2100

US Forest Service


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2016 News Releases

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Science Stories


Managing with Fire: Mixed-Severity Fire Regime Forests in Oregon, Washington, and northern California


Fires have always been common during the hot, dry summers of the Inland Pacific. However, most wildfires today are immediately suppressed, while those that escape suppression typically burn with high intensity over large areas.

Historically, fires varied tremendously in their frequency, severity, seasonality, distribution, and extent. Restoring these variations in fire, or pyrodiversity, is critical to maintaining successionally diverse landscapes that are resilient to climate change, invasive species, and other stressors. Read More>>



Repeat photos of the Leecher Mountain area, Methow Valley, WA. The top photo was taken in the 1930s, and dry mixed conifer forests with open canopies and extensive areas of grassland cover are apparent.


Seven Principles for Restoring Fire-Prone Inland Pacific Forests


Hessburg is lead author of a recent paper that represents a unified vision of landscape restoration, from a diverse group of thinkers. Scientists from leading universities, GOs and NGOs – including the Aldo Leopold Wilderness Research Institute, The Nature Conservancy, and The Wilderness Society – contributed to the study. Read More>>



The top photo was taken in 1934, and large patches of recently burned areas are clearly visible. Patches of young forests are also apparent. The bottom photo is from 2010, after decades of fire suppression. The area that is forested has expanded considerably, as has the density of forests, William Osborne Collection, NARA Seattle (1934) / John Marshall Photography (2010).


Genetics and geography: DNA markers identify origin of white oak wood


At first glance, white oak trees, DNA, and Siberian tigers may seem to have little in common. But with financial support from the U.S. State Department and U.S. Agency for International Development, the Forest Service’s Pacific Northwest Research Station and Germany’s Thünen Institute of Forest Genetics are linking all three through research that offers a new approach for sleuthing the source of wood products and combating illegal logging. Read More>>



PNW Research Station scientists are exploring the use of a portable DNA sequencer, shown here, for DNA-based identification of plants and plant pathogens. Driven by a laptop, this sequencer generated a MinION run of Oregon White Oak DNA. Photo courtesy of Rich Cronn, USFS.

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PNW At-A-Glance


2013 Science Accomplishments

2013 Science Accomplishments
(13.5 MB)





Where are our labs located? How can you request a publication? Find the answers here. View the FAQs





Restoration planning on the Okanogan-Wenatchee national forest: Prescriptions for resilient landscapes, based on science by Keith Reynolds and Paul Hessburg

Science Findings

To communicate our most significant findings to people who make and influence decisions about land management, we select up to 12 projects each year to highlight in a monthly publication.




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    Episode 2—Beyond the Concrete Jungle: Cities as Sources of Ecosystem Services (4:19)




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For Pacific Northwest Research Station media related questions please contact:

Yasmeen Sands

Public Affairs Specialist
(503) 808-2137





US Forest Service - Pacific Northwest Research Station
Last Modified: Tuesday,27September2016 at16:58:55CDT

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