Volume equations for second-growth Douglas-fir by Bruce, David

Cover of: Volume equations for second-growth Douglas-fir | Bruce, David

Published by Pacific Northwest Forest and Range Experiment Station in Portland, Or .

Written in English

Read online

Subjects:

  • Forests and forestry -- Measurement.,
  • Douglas fir.

Edition Notes

Book details

Statementby David Bruce and Donald J. DeMars.
SeriesUSDA Forest Service research note PNW -- 239.
ContributionsDeMars, Donald J., Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
The Physical Object
Pagination5 p. ;
ID Numbers
Open LibraryOL16013943M

Download Volume equations for second-growth Douglas-fir

Get this from a library. Volume equations for second-growth Douglas-fir. [David Bruce; Donald J DeMars; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)]. Equations are given for estimating merchantable volumes of second-growth Douglas-fir stands to specified breast high and top diameter limits, in cubic feet or board feet, from total volume in cubic feet and certain associated stand characteristics.

KEYWORDS: Volume (merchantable), second-growth stands, cubic volume measure, conversion factors. Title: Volume equations for second-growth Douglas-fir: Publication Type: Journal Article: Year of Publication: Authors: Bruce D., DeMars D.J.

Keywords: Non-SNCC. Re: Douglas Fir Lumber - old growth vs. second growth Its was a long time ago, but I do most distinctly recall the material was supposed to air dried top quality, believe me there were a lot of phone calls on just how long it had been dried and what the story behind the cert sticker on the stuff exactly meant.

Development of Volume equations for second-growth Douglas-fir book system of taper and volume tables for red alder. Forest Science. 14(3): Bruce, Donald, and Francis X. Schumacher. Forest Mensuration.

McGraw-Hill Book Company Inc., New York and London. Burkhart, H. and S. Walton. Incorporating crown ratio into taper equations for loblolly pine trees. Forest. Book Material. Published material. Publication info.

Portland, Or.:Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, Notes: Caption title. "May " Gives equations for estimating diameters at breast height of second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.). Knowledge of tree heights is important for classifying sites, projecting growth and yield and estimating stand volume.

Tree height is expensive and time consuming to measure so samples should be taken in the most efficient way possible. The impact of different sample designs and sizes on the fitting of height-diameter equations and subsequent prediction of volume is.

Volume no Caption title "May " 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 WashingtonPages: The greatest gain in Douglas-fir growth from increasing the area of control was observed between the m(2) and the m(2) treatments.

Growth continued to. The volume breeding values for BC Douglas-fir selective breeding program are an estimate of a tree's genetic worth, and reflect the expected increase in volume at age 60 (rotation age) when. Aim of study: The classical method for estimating a height-diameter model is based on the Least Squares Method (LSM) and the fit of a regression Bayesian method has an exclusive advantage, compared with the classical method, in that the parameters to be estimated are considered as random : Elias Milios, Kyriaki Kitikidou, Elias Pipinis, Athanasios Stampoulidis, Melina Gotsi.

Publications. Search. CAPTCHA. Volume equations for second-growth Douglas-fir. Buchwald N.F. Adelopus [Phaeocryptopus gaeumannii] needle cast disease of Douglas-fir in central New York.

Taipei Nat Taiwan University Forest. Consider the following summary data on the modulus of elasticity (3 psi) for lumber of three different grades [in close agreement with values in the article “Bending Strength and Stiffness of Second-Growth Douglas-Fir Dimension Lumber” (Forest Products J., 35–43), except that the sample sizes there were larger]: Grade J x ¯ i s i 1 10 2 10 3 10   Curtis RO () Height-diameter and height-diameter-age equations for second-growth Douglas-fir.

For Sci – Google Scholar Dell TR, Fedducia DP, Campbell TE, Mann WF Jr, Polmer BH () Yields of unthinned slash pine plantations on cutover sites in the west Gulf : Harold E.

Burkhart, Margarida Tomé. Compatible taper and volume equations give identical estimates of total volume of trees. Two basically opposite techniques for the construction of compatible systems of estimating tree taper (decrease in diameter with increase in height) and volume were derived and examined statistically.

In the first method compatible taper equations are derived from volume equations Cited by: 2. Curtis, R.O. Height-diameter and height-diameter-age equations for second-growth Douglas-fir. For. Sci.13, – [Google Scholar] Schöpfer, W.

Automatisierung Des Massem, Sorten Und Wertberechnung Stenender Waldbestande Schriftenreihe Bad; Wurtt-Forstl: Koblenz, Germany, [Google Scholar]Cited by: Volume growth for Douglas-fir tended to increase in response to both N and N + S during the four years following fertilization, with the N + S treatment producing the best growth response.

The four-year volume growth response of Douglas-fir on the N-treated plots was positive ca. 70% of the time (Fig. 1 (e)), but the average response was not Cited by: Cruiser volume and value estimates were both within 4% of actual harvester recovery. Plot preparation procedures, tree characteristics, and taper equations used to model diameters on hidden stem sections affected the accuracy of automated stem detection and profile measurements for the TLS by:   Biging GS () Taper equations for second-growth mixed conifers of northern California.

For Sci – Google Scholar Brooks JR, Jiang L, Ozçelik R () Compatible stem volume and taper equations for Brutian pine, Cited by: 1. AUTOSAW simulations of lumber recovery for small‐diameter Douglas‐fir and ponderosa pine from southwestern Oregon.

Research Note PNW‐RN‐ USDA Forest Service, Pacific Northwest Research Station, Portland, OR. Cubic-foot tree volume equations and tables for western juniper / View Metadata.

- Maka, Jean E. - Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) - Pacific Northwest Forest and Range Experiment Station (Portland, Or.) Publication info: Berkeley, Calif.:Pacific Southwest Forest and Range Experiment Station ;[ The internal conductance from intercellular spaces to the sites of carboxylation (gi) has only been measured in a few tree species and not in conifers, despite.

Biomass amounts predicted by generalized models are often not applicable for small regions. Localized allometric models were developed relating tree/biomass components to diameter at breast height (dbh) for coast redwood (Sequoia sempervirens (D. Don) Endl.) from an industrial timberland in northwestern California, USA.

dbh for the candidate trees ranged from cm Cited by: 5. Compatibility of a volume-taper equation system is generally defined to mean that volumes determined by integrating the taper curve from groundline to total tree height are algebraically identical to those obtained from the total volume or appropriate volume ratio equations.

Progress 10/01/08 to 09/30/09 Outputs OUTPUTS: A series of Douglas-fir test sites were established this past year to test the idea of moving seed sources in response to climate change and evaluate options for adapting to climate change through assisted migration, using silvicultural and genetic options.

In the past years, the Pacific Northwest. A comparison of two methods for determining the specific gravity of small samples of second-growth Douglas-firCited by: 9. Forest Ecology anO Management ELSEVIER Forest Ecology and Management 81 () Estimating diameter at breast height and basal diameter of trees from stump measurements in Nepal's lower temperate broad-leaved forests Deepak B.

Khatry Chhetri *, Gary W. Fowler School of Natural Resources and Environment, University of Michigan, Ann Arbor, M, Cited by: Volume and taper relationships for redwood Douglas fir, and other conifers in California’s north coast.

Agricultural Experiment Station, Div. Nat. Cited by: Over trees ( redwoods, Douglas-fir) were dendrometered for volume determination using the STX program developed by Grosenbaugh. Dendrometry consisted of measuring tree heights and upper-stem diameters at 20 feet and several points up the bole using Barr and Stroud dendrometers or Gurley-Teledyne transits.

Abstract: In the frame of the ALFORLAB project, a harmonised set of tree volume (and biomass) single entry tables (“tariffs”) was developed for the main 20 forest species of Calabria (Southern Italy), to outline the “coordinates” of volume expression for inventory purposes at both regional and forest planning level.

The system, called TaCAL, was based on the double entry volume Cited by: 2. orphaned Estimating merchantable volumes of second growth Douglas-fir stands from total cubic volume and associated stand characteristics, Richard L. Williamson, Robert O.

Curtis, Pacific Northwest Forest and Range Experiment Station (Portland, Or.), United States. Forest Service,Douglas fir, 14 pagesFirst. This banner text can have markup.

web; books; video; audio; software; images; Toggle navigation. You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

This book is an updated manual that offers a brand-new diagnostic test to pinpoint the test taker's strengths and weak areas, two full-length practice exams with all questions answered and explained, a detailed review of all test topics, supplemented with practice questions and quizzes with answers, an overview of the test plus helpful test-taking strategies, and hundreds of.

Maximum heights. The tallest tree in the world is a coast redwood (Sequoia sempervirens) growing in Northern California that has been named Septemberit was measured at meters ( feet) tall.

There are 7 other coastal redwoods known to be over meters ( feet) in height, and specimens over meters ( feet). The fresh mass, dry mass and fresh volume of each sapwood core were used to calculate ρ b, m c and the true value of k using the equations supplied by Burgess et al.

Sapwood cross-sectional area (m 2) of treetops was determined using measurements of trunk diameter, bark depth and sapwood depth at each HRM probeset location (Table 1).Cited by:   The theory of tree water flow proposed in Aumann & Ford (submitted) is assessed by numerically solving the model developed from this theory under a variety of functional parameterizations.

The unknown functions in this nonlinear partial differential equation model are determined using a tracheid-level model of water flow in a block of Douglas fir tracheids.

The. This book arrive on our coffee table at home unfinished and I am seriously rationing my daily consumption of its pages. The Taste of Haida Gawaii is a luscious book filled with sumptuous color photos, recipes for gathering and cooking wild.

Twenty years later he was still at work on his book when a remarkable coincidence forced him to publish. In he received a manuscript from an English collector in the East Indies, Alfred.

Douglas-Fir Douglas-fir (Pseu‑ dotsuga menziesii) is also known locally as red-fir, Douglas-spruce, and yellow-fir. Its range extends from the Rocky Mountains to the Pacific Coast and from Mexico to central British Columbia.

Sapwood of Douglas-fir is narrow in old-growth trees but may be as much as 7 cm (3 in.) wide in second-growth. Lange () reported lumber from old-growth timber weighed 20 percent less than lumber from second-growth timber; therefore, adjustments would have to be made for the type of timber.

Currently, most wood processors in southern Arkansas buy their raw material at the mill by the ton without converting to volume.Environmental & Engineering Geoscience Vol Number 2, May Table of Contents.

Sources and Changes in Groundwater Quality with Increasing Urbanization, Northeastern Illinois Hue-Hwa.Abstract Summarizes information on wood as an engineering material.

Presents properties of wood and wood-based products of particular concern to the architect .

81635 views Saturday, November 21, 2020