Research was conducted to study the behavior and
load carrying capacity of stump anchors. A field testing
program was undertaken to determine the response and
strength characteristics of second growth Douglas-fir
(Pseudotsuga menziesii) stumps ranging in diameter from
6 to 17 inches. Horizontal and vertical stump movements
due to an...
Stocking levels and height growth rates of noble fir and
associated species were measured on 51 clearcut study areas within
the Pacific silver fir zone of the Oregon and Washington Cascades.
Clearcut study areas were approximately 20 years old and had either
planted noble fir or natural regeneration of noble...
