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Highlight IDTitleStrategic Program Area(s)YearStation
Photo of Field crew measure trees at H.J. Andrews Experimental Forest. USDA Forest Service
ID: 791
Equations Used to Estimate Regional Tree Biomass and Carbon can be Improved

Developing nationally consistent methods for defining, measuring, and calculating biomass components will improve the reliability and applicatio ...

Principal Investigator : Andrew Gray

Inventory and Monitoring2015PNW
Photo of An agricultural area near Sequim, Washington, with recent housing developments on previous agricultural and forest resource lands. Andrew Gray, USDA Forest Service
ID: 513
Forest and Agricultural Land Area Declines in Washington State While Residential and Urban Land Use Increases Over Past 30 years

Station scientists and partners assessed changes in land use and housing density across Washington state from 1976 to 2006. They found that the ...

Principal Investigator : Andrew Gray

Inventory and Monitoring2013PNW
Photo of A sequoia scarred by a 2015 fire in the Sierra National Forest. U.S. Department of Agriculture Forest Service.
ID: 1135
Ground-based Estimates of Fire Severity Reveal Information Undetected by Satellite Imagery Analyses

A new study provides a broad-scale characterization of the extent of relatively low-severity fires and small fires, including prescribed fires, ...

Principal Investigator : Andrew Gray

Inventory and Monitoring2016PNW
Photo of Housing development near the Gifford Pinchot National Forest, Washington. Rhonda Mazza, USDA Forest Service
ID: 675
Increasing Development Near Public Forest Lands in Washington and Oregon Has Implications for Public Land Management and Fire Suppression

Areas bordering public forest land in Washington and Oregon are showing substantial increases in development, with the number of structures on p ...

Principal Investigator : Andrew Gray

Inventory and Monitoring
Resource Management and Use
Photo of Douglas-fir killed by sprucebud worm on the Malheur National Forest in eastern Oregon. Dave Powell, USDA Forest Serivce
ID: 664
Net Forest Carbon in Oregon Increased Slightly During the Last Decade

Gains in forest carbon through tree growth and afforestation in the Pacific Northwest were offset by fire, insects, cutting, and deforestation.

Principal Investigator : Andrew Gray

Inventory and Monitoring2014PNW
Photo of Field crew collect forest inventory data in a stand of black spruce in Interior Alaska.
ID: 1398
Scientists analyze trends in tree growth to assess change in Interior Alaska’s spruce forest

Tree-ring analysis adjusted for age-related changes in growth indicate that recent growth of black and white spruce in Interior Alaska is near t ...

Principal Investigator : Andrew Gray

Outdoor Recreation
Inventory and Monitoring
Photo of The distribution of net ecosystem production (mean for 2006–2010). Areas in red denote highest productivity and therefore sequestered the greatest amounts of atmospheric carbon. From Turner et al. 2016
ID: 1403
Scientists model four-state region to estimate carbon pools and flux over large domains

Variation in climate, disturbance regime, and forest management strongly influence terrestrial carbon sources and sinks.

Principal Investigator : Andrew Gray

Outdoor Recreation
Inventory and Monitoring
Photo of Douglas-fir in H.J. Andrews Experimental Forest, Oregon.
ID: 1363
Wetter, warmer conditions will likely favor biomass accumulation in Douglas-fir

Conversely, continued accumulation of forest biomass in drier regions may be more limited.

Principal Investigator : Andrew Gray

Water, Air, and Soil
Resource Management and Use