Barley (Hordeum vulgare L.) has been cultivated for human consumption for thousands of years. However, most North Americans do not consume barley on a regular basis. In the last decade, there has been a renewed interest in barley production for human consumption. A number of quality traits estimate nutritional value...
Forest ecosystems are removing significant amounts of carbon from the atmosphere. Both abiotic resource availability and biotic interactions during forest succession affect C accumulation rates and maximum C stocks. However, the timing and controls on the peak and decline in C accumulation rates as stands age, trees increase in size,...
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of forested federal land ad-
ministered by the Pacific Northwest (PNW)
Region of the National Forest
Studies were conducted in the vicinity of Mount Tolman
on the Colville Indian Reservation in eastern Washington in
order to identify vegetation habitat types of the area.
After field studies were completed, Daubenmire's keys to
habitat types of eastern Washington (1968, 1970) were used
to determine habitat types of the...
Mountain environments are currently among the ecosystems least invaded by non-native
species; however, mountains are increasingly under threat of non-native plant invasion.
The slow pace of exotic plant invasions in mountain ecosystems is likely due to a combination
of low anthropogenic disturbances, low propagule supply, and extreme/steep environmental
gradients. The...
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, URL:
http://www.fs.fed.us/pnw/, Contract (Joint Ventura
Agreement with Oregon State University): 11-JV
The relative influences of trans-Pacific and regional atmospheric transport on measured concentrations of polycyclic aromatic hydrocarbons (PAHs), PAH derivatives [Nitro- (NPAH) and Oxy-(OPAH)], organic carbon (OC), and Particulate Matter (PM) less than 2.5 μm in diameter (PM₂.₅) were investigated in the Pacific Northwest, USA in 2010-2011. Ambient high volume PM₂.₅...
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clean 56
background areas of the Pacific Northwest (PNW) and approximately 36% - 50% in urban areas 57
We used multi-season occupancy analyses to model 2 fates of northern spotted owl territories in
relation to habitat amount, habitat fragmentation, and the presence of barred owls in Washington State,
USA, 1989–2005. Local colonization is the probability a territory unoccupied by a spotted owl in year i would
be occupied...
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Northwest Research
Station, General Technical Report PNW-GTR-440, Portland, Oregon,
USA.
Livezey, K. B
Forest ecosystems of the Pacific Northwest of the USA are changing as a result of climate change. Specifically, rise of global temperatures, decline of winter precipitation, earlier loss of snowpack, and increased summer drought are altering the range of Pinus contorta. Simultaneously, flux in environmental conditions within the historic P....
Cable yarding systems (also sometimes known as skyline yarding systems) are a versatile means for transporting materials in mountainous terrain in situations that do not allow for conventional harvesting methods such as ground skidding or shovel-logging. Adequate ground anchors are necessary for the safe operation of cable yarding systems. Anchored...