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Browsing by Subject "Douglas fir -- Coast Ranges"

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Examining bias in estimating the response variable and assessing the effect of using alternative plot designs to measure predictor variables in diameter growth modeling

Zumrawi, Abdel Azim M. A. (1990-03-01)

Diameter growth of Douglas-fir (Pseudotsuqa menziesii (Mirb.) Franco) estimated from increment cores was compared with that obtained from repeated measurements of tree diameter on permanent plots located in two Douglas-f ...
Interspecific competition in young Douglas-fir plantations of the Oregon coast range

Wagner, Robert Gordon (1989-11-21)

Improving vegetation management decisions in Pacific Northwest forests requires a better understanding of the interactions between planted conifers and associated vegetation. A practical index of interspecific competiti ...
The relationship of lumber recovery to log quality in 29 old-growth Douglas-fir trees of the Oregon Coast Range

Grantham, John Bernard; Oregon Forest Products Laboratory (Corvallis, Or. : Oregon Forest Products Laboratory, 1953)

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