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Pacific Northwest Research Station

 
 
 
Pacific Northwest Research Station
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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)

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POPULAR PUBLICATIONS

 

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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US Forest Service - Pacific Northwest Research Station
Last Modified: Tuesday,06December2016 at10:00:41CST


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