Log and lumber grades as indicators of wood quality in 20- to 100- year-old Douglas-fir trees from thinned and unthinned stands
By: R. James Barbour and Dean L. Parry.
Contributors: Parry, Dean L.
Series: General technical report PNW ;; GTR-510; General technical report PNW ;; 510.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 2001
Place of publication: Portland, OR
Language: eng
Number of pages: 22
Subjects: Douglas fir -- Thinning -- Northwest, Pacific.; Douglas fir -- Northwest, Pacific -- Age.; Douglas fir -- Quality.
Notes: Includes bibliographical references (p. 20-22).
Cover title.
"April 2001."