Changes in tree growth rates can affect tree mortality and forest feedbacks to the global carbon cycle. As air temperature increases, evaporative demand also increases, increasing effective drought in ...
Core samples taken from a stand of old growth Douglas-fir trees in the South Beach area just south of Newport showed reduced growth following the 9.0 earthquake and subsequent tsunami that struck the ...
Douglas-fir (Pseudotsuga menziesii) is one of the premier species of the Western forests. Not only is the wood exceptionally strong for its weight, but the trees are abundant. Trees can grow more than ...
Whether growing along the rim of the Grand Canyon or living in the mist with California’s coastal redwoods, Douglas fir trees are consistently sensitive to drought conditions that occur throughout the ...
Some of the most spectacular forests of Douglas fir in the West are found on the west slope of the Cascade Mountains in Oregon. Though heavily logged by the timber industry for its straight-grained ...
The iconic Douglas-fir has been standing tall in Oregon for many centuries. But the evergreen species isn't doing so well lately, with many trees dying off in parts of the Klamath Mountains of ...
When the first English colony was established at Jamestown in 1607, the Douglas fir seedling was about eight years old, growing on a hillside 20 minutes northwest of what is now Corvallis. It climbed ...
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