Download or read book Estimating the Weight of Crown Segments for Old Growth Douglas Fir and Western Hemlock Classic Reprint written by J. A. Kendall Snell and published by Forgotten Books. This book was released on 2017-11-19 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Estimating the Weight of Crown Segments for Old-Growth Douglas-Fir and Western Hemlock Equations were developed for predicting weight of continuous live crown, total live crown, dead crown, any segment of live crown, and individual branches for old-growth Douglas-fir (pseudotsuga menziesii (mirb.) Franco) and western hem lock (tsuga heterophylla (raf.) Sarg.) trees. A branch method and a ratio method were developed for estimating the weight of crown segments. Equations were based on data from 32 Douglas-fir and 29 western hemlock trees from the Gifford Pinchot National Forest in southwestern Washington. An additional 49 Douglas-fir and 50 western hemlock were selected for validating the models. For predicting weight of a segment of crown, the branch method was less biased and more accurate than the ratio method. The branch method is recommended for felled trees because it more easily accommodates the large amount of break age ln the crown of felled old - growth trees. Keywords: Crown weights, estimates, moisture content (wood), old-growth stands, Douglas-fir, western hemlock. The purpose of this study was to develop and validate estimators to predict total crown weight and weight of any segment of crown for old-growth felled and bucked Douglas-fir and western hemlock trees. Equations were developed for pre dicting weight of continuous live crown, total live crown, dead crown, any seg ment of live crown, and individual branches. A branch method and ratio method were developed for estimating the weight of crown segments. Equations were based on data from 32 Douglas-fir and 29 western hemlock trees from the Gifford Pinchot National Forest in southwestern Washington. An additional 49 Douglas-fir and 50 western hemlock were selected for validating the models. For predicting weight of a segment of crown, the branch method was less biased and more accurate than the ratio method. The branch method is recommended for felled trees because it more easily accommodates the large amount of break age in the crown of felled old-growth trees. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Estimating the Weight of Crown Segments for Old growth Douglas fir and Western Hemlock written by J. A. Kendall Snell and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating the Weight of Crown Segments for Old growth Douglas fir and Western Hemlock written by J. A. Kendall Snell and published by . This book was released on 1985 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Crown Weight of Coast Douglas fir and Western Hemlock written by J. A. Kendall Snell and published by . This book was released on 1981 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wood Density moisture Profiles in Old growth Douglas fir and Western Hemlock written by W. Y. Pong and published by . This book was released on 1986 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Predicting Crown Weight of Coast Douglas fir and Western Hemlock written by J. A. Kendall Snell and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating Tree Bole and Log Weights from Green Densities Measured with the Bergstrom Xylodensimeter written by Dale R. Waddell and published by . This book was released on 1984 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ingegaan wordt op het gebruik van een meetapparaat (Bergstrom xylodensimeter), waarmee de dichtheid van hout kan worden bepaald. Bij deze methode wordt een monster van de stam genomen en gedompeld in een plastik kontainer om de waterverplaatsing vast te stellen. Met behulp hiervan kan de dichtheid worden berekend

Download or read book Wood Density moisture Profiles in Old growth Douglas fir and Western Hemlock written by W. Y. Pong and published by . This book was released on 1986 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating the Weight of Douglas fir Tree Boles and Logs with an Iterative Computer Model written by Dale R. Waddell and published by . This book was released on 1987 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating D B H diameter at Breast Height from Stump Diameters on Second growth Douglas fir written by Robert O. Curtis and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives equations for estimating diameters at breast height of second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) from measured stump diameters over bark and stump heights, based on measurements at 22 locations in western Oregon and Washington.

Download or read book Volume Estimation of Douglas Fir and Western Hemlock Using a Spiegel Relaskop with Magnification written by Robert F. Roth and published by . This book was released on 1977 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wood Density moisture Profiles in Old growth Douglas fir and Western Hemlock written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applicability of Four Regional Volume Tables for Estimating Growth Response to Thinning in Douglas Fir written by Richard L. Williamson and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating the Weight of Douglas fir Tree Boles and Logs with an Iterative Computer Model written by Dale R. Waddell and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Classification Grading and Dressing Rules for Douglas Fir Spruce Cedar and Western Hemlock Products written by West Coast Lumbermen's Association and published by . This book was released on 1917 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating merchantable volumes of second growth Douglas fir stands from total cubic volume and associated stand characteristics written by Richard L. Williamson and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Labor Requirements in Thinning Douglas Fir and Western Hemlock on Two Experimental Forests in Western Washington Classic Reprint written by Norman P. Worthington and published by Forgotten Books. This book was released on 2018-09-27 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Labor Requirements in Thinning Douglas-Fir and Western Hemlock on Two Experimental Forests in Western Washington The Pacific Northwest Forest and Range Experiment Station has been engaged in research over the past 20 years to discover some of the silvicultural and economic factors which would influence thinning practice. We have accumulated a series of time and production records from several studies of thinning methods. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.