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Regional Comparisons Of Wood Density And Branch Size In Low Stand Density Lodgepole Pine
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Book Synopsis Regional Comparisons of Wood Density and Branch Size in Low Stand Density Lodgepole Pine by : G. R. Middleton
Download or read book Regional Comparisons of Wood Density and Branch Size in Low Stand Density Lodgepole Pine written by G. R. Middleton and published by . This book was released on 1996 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines relationships between tree diameter at breast height, wood density, and knot size in good-site, low stand density lodgepole pine from five different biogeoclimatic zones in British Columbia. At least 30 trees were selected from stands at each site, and average basic wood density was determined from two cores obtained from each sample tree. Lumber strength estimates using a previously developed regression equation are also made.
Book Synopsis Guidelines for Developing Stand Density Management Regimes by : British Columbia. Forest Practices Branch
Download or read book Guidelines for Developing Stand Density Management Regimes written by British Columbia. Forest Practices Branch and published by British Columbia, Forest Practices Branch. This book was released on 1999 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stand density management is the process of controlling tree density within a stand to achieve desired objectives. Stand density management practices include the spacing of planted trees, pre-commercial thinning, and commercial thinning. A sound density management prescription must consider three elements of prediction: biological responses of the stand to treatment, economic implications of the treatment, and forest-level effects of the treatment. This document provides essential information on each of these elements, and provides a structured decision process for making site-specific density management prescriptions. Sections of the document cover the biological concepts of timber production, economic principles of timber production, forest planning considerations, the decision process, and density management planning tools. Includes glossary.
Book Synopsis General Technical Report Southern Research Station by :
Download or read book General Technical Report Southern Research Station written by and published by . This book was released on 1995 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Tenth Biennial Southern Silvicultural Research Conference by : James D. Haywood
Download or read book Proceedings of the Tenth Biennial Southern Silvicultural Research Conference written by James D. Haywood and published by . This book was released on 1999 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Agriculture with Subject Index by :
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 2000 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Forest Research. Journal Canadien de la Recherche Forestière by :
Download or read book Canadian Journal of Forest Research. Journal Canadien de la Recherche Forestière written by and published by . This book was released on 2008 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Services for Family Planning and Infertility, United States, 1982 by : Gerry E. Hendershot
Download or read book Use of Services for Family Planning and Infertility, United States, 1982 written by Gerry E. Hendershot and published by . This book was released on 1988 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1982 statistics on the use of family planning and infertility services presented in this report are preliminary results from Cycle III of the National Survey of Family Growth (NSFG), conducted by the National Center for Health Statistics. Data were collected through personal interviews with a multistage area probability sample of 7969 women aged 15-44. A detailed series of questions was asked to obtain relatively complete estimates of the extent and type of family planning services received. Statistics on family planning services are limited to women who were able to conceive 3 years before the interview date. Overall, 79% of currently mrried nonsterile women reported using some type of family planning service during the previous 3 years. There were no statistically significant differences between white (79%), black (75%) or Hispanic (77%) wives, or between the 2 income groups. The 1982 survey questions were more comprehensive than those of earlier cycles of the survey. The annual rate of visits for family planning services in 1982 was 1077 visits /1000 women. Teenagers had the highest annual visit rate (1581/1000) of any age group for all sources of family planning services combined. Visit rates declined sharply with age from 1447 at ages 15-24 to 479 at ages 35-44. Similar declines with age also were found in the visit rates for white and black women separately. Nevertheless, the annual visit rate for black women (1334/1000) was significantly higher than that for white women (1033). The highest overall visit rate was for black women 15-19 years of age (1867/1000). Nearly 2/3 of all family planning visits were to private medical sources. Teenagers of all races had higher family planning service visit rates to clinics than to private medical sources, as did black women age 15-24. White women age 20 and older had higher visit rates to private medical services than to clinics. Never married women had higher visit rates to clinics than currently or formerly married women. Data were also collected in 1982 on use of medical services for infertility by women who had difficulty in conceiving or carrying a pregnancy to term. About 1 million ever married women had 1 or more infertility visits in the 12 months before the interview. During the 3 years before interview, about 1.9 million women had infertility visits. For all ever married women, as well as for white and black women separately, infertility services were more likely to be secured from private medical sources than from clinics. The survey design, reliability of the estimates and the terms used are explained in the technical notes.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wood Variation written by Bruce J. Zobel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood is the usual end product of a forestry operation. Because of its importance, numerous studies have been made relative to wood prop erties, the causes of wood variation, and how best to develop wood for desired products. There is voluminous literature related to these subjects, but it is neither well known nor appreciated by foresters because the publications are often not available or are not well understood by the forester or by those who use the wood. Frequently, the literature is confusing and contradictory, making it difficult for the nonspecialist to use what information is available. In order to produce and use wood efficiently, the variation pat terns within trees, among trees within species, and among species must be understood. This also requires some knowledge of the causes of variation and the effects of different wood properties upon utiliza tion. The information about variation patterns, their causes, and con trol and effect upon the product must be known by the tree grower, the tree breeder, and the tree harvester as well as by those who ultimately convert wood into a final, salable product.
Download or read book Crown-condition Classification written by and published by . This book was released on 2007 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Forest Inventory and Analysis (FIA) Program of the Forest Service, U.S. Department of Agriculture, conducts a national inventory of forests across the United States. A systematic subset of permanent inventory plots in 38 States is currently sampled every year for numerous forest health indicators. One of these indicators, crown-condition classification, is designed to estimate tree crown dimensions and assess the impact of crown stressors. The indicator features eight tree-level field measurements in addition to variables traditionally measured in conjunction with FIA inventories: vigor class, uncompacted live crown ratio, crown light exposure, crown position, crown density, crown dieback, foliage transparency, and crown diameter. Indicators of crown health derived from the crown data are intended for analyses at the State, regional, and national levels, and contribute to the core tabular output in standard FIA reports. Crown-condition measurements were originally implemented as part of the Forest Health Monitoring (FHM) Program in 1990. Except for crown diameter, these measurements were continued when the FIA Program assumed responsibility for FHM plot-based detection monitoring in 2000. This report describes in detail the data collection and analytical techniques recommended for crown-condition classification.
Download or read book Forestry Research West written by and published by . This book was released on 1988 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Colorado Front Range by : Thomas T. Veblen
Download or read book The Colorado Front Range written by Thomas T. Veblen and published by . This book was released on 1991 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report by : Canada. Forest Entomology and Pathology Branch
Download or read book Report written by Canada. Forest Entomology and Pathology Branch and published by . This book was released on 1964 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Pruning and Wood Quality of Western North American Conifers by :
Download or read book Forest Pruning and Wood Quality of Western North American Conifers written by and published by . This book was released on 1995 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :British Columbia. Ministry of Forests Publisher :University of British Columbia Press ISBN 13 : Total Pages :364 pages Book Rating :4.:/5 (319 download)
Book Synopsis 1994 Forest, Range & Recreation Resource Analysis by : British Columbia. Ministry of Forests
Download or read book 1994 Forest, Range & Recreation Resource Analysis written by British Columbia. Ministry of Forests and published by University of British Columbia Press. This book was released on 1995 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: British Columbia's Ministry of Forests Act requires a forest and range resource analysis to be completed every tenth year after September 30, 1984. This document is the third such analysis, presenting information relevant to current issues in provincial forest resource management as a foundation for developing future resource management policy. After an overview of the province's forest ecosystem, this report introduces important resource values associated with British Columbia forests. Inventories and statistics are provided on areas and volumes of timber harvested and regenerated, range condition and use, forest recreation activity, value of botanical forest products, and supply and demand for timber, range, and recreation resources. The report also describes the timber supply review process and how the annual allowable cut is determined. Finally, it describes provincial forest policy and programs and makes projections of future supply and demand of forest resources.
