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Extending Southwest Oregons Douglas Fir Dominant Height Growth Equation To Older Ages
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Book Synopsis Extending Southwest Oregon's Douglas-fir Dominant Height Growth Equation to Older Ages by : David W. Hann
Download or read book Extending Southwest Oregon's Douglas-fir Dominant Height Growth Equation to Older Ages written by David W. Hann and published by . This book was released on 1998 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hann and Scrivani (1987) developed dominant height growth equations for Douglas- fir in southwest Oregon using stem analysis data sets with an upper age of approximately 125 years at breast height. The objective of this study was to determine whether these equations could be extrapolated for ages of 250 years or more. Data for the evaluation came from stem analysis of 60 dominant trees located in 30 "older" stands. Intensive data screening indicated that 53 of these trees exhibited signs of reduced height growth during their first 100 years of development due to competition from non-tree vegetation, hardwood tree species, and possibly other conifers in non-even-aged stands. Analysis of the remaining seven site-quality trees indicated that the existing dominant height growth equation for Douglas-fir could be extrapolated to breast height ages of up to 245 years without loss of accuracy or precision.
Book Synopsis Forest Growth and Yield Modeling by : Aaron R. Weiskittel
Download or read book Forest Growth and Yield Modeling written by Aaron R. Weiskittel and published by John Wiley & Sons. This book was released on 2011-08-22 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest Growth and Yield Modeling synthesizes current scientific literature and provides insights in how models are constructed. Giving suggestions for future developments, and outlining keys for successful implementation of models the book provides a thorough and up-to-date, single source reference for students, researchers and practitioners requiring a current digest of research and methods in the field. The book describes current modelling approaches for predicting forest growth and yield and explores the components that comprise the various modelling approaches. It provides the reader with the tools for evaluating and calibrating growth and yield models and outlines the steps necessary for developing a forest growth and yield model. Single source reference providing an evaluation and synthesis of current scientific literature Detailed descriptions of example models Covers statistical techniques used in forest model construction Accessible, reader-friendly style
Book Synopsis Revision of the Resource Management Plans of the Western Oregon Bureau of Land Management Districts by :
Download or read book Revision of the Resource Management Plans of the Western Oregon Bureau of Land Management Districts written by and published by . This book was released on 2008 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biennial Bibliography by : Oregon State University. Forest Research Laboratory
Download or read book Biennial Bibliography written by Oregon State University. Forest Research Laboratory and published by . This book was released on 1996 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Predicting Height for Undamaged and Damaged Trees in Southwest Oregon by : Mark L. Hanus
Download or read book Predicting Height for Undamaged and Damaged Trees in Southwest Oregon written by Mark L. Hanus and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Equations for predicting tree height as a function of diameter outside bark at breast height are presented for various tree species common to southwest Oregon. Data for damaged and undamaged trees were analyzed with weighted nonlinear regression techniques. The effects of specific damaging agents and their severity on the height-diameter relationship were explored. Damage correction multipliers were estimated, then used to correct predicted height where damage was noted. Because the relationship between height and diameter changes with the competitive position of the tree in a stand, alternative equations are presented that include the average height and diameter of the 40 largest-diameter undamaged conifer trees per acre. Foresters can use these "height-diameter" equations to reduce the time-consuming task of measuring heights of every tree in an inventory, stand exam, or timber cruise. They can also use these equations to estimate the change in height as diameter changes. These equations will be incorporated into the new southwest Oregon version of ORGANON, which extends the model to older stands and stands with a heavier component of hardwood species.
Book Synopsis Management of wildlife and fish habitats in forests of western Oregon and Washington by :
Download or read book Management of wildlife and fish habitats in forests of western Oregon and Washington written by and published by . This book was released on 1985 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wildlife Habitats in Managed Forests by : Jack Ward Thomas
Download or read book Wildlife Habitats in Managed Forests written by Jack Ward Thomas and published by . This book was released on 1979 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: That is what this book is about. It is a framework for planning, in which habitat is the key to managing wildlife and making forest managers accountable for their actions. This book is based on the collective knowledge of one group of resource professionals and their understanding about how wildlife relate to forest habitats. And it provides a longoverdue system for considering the impacts of changes in forest structure on all resident wildlife.
Book Synopsis Forest Biodiversity in North, Central and South America, and the Caribbean: Research and Monitoring by : J.A. Comiskey
Download or read book Forest Biodiversity in North, Central and South America, and the Caribbean: Research and Monitoring written by J.A. Comiskey and published by CRC Press. This book was released on 1998-11-15 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second of two high-level, data-rich volumes from the massive Smithsonian/MAB Biological Diversity Program documenting the latest findings on forest biodiversity. In original contributions, some three hundred scientists from over forty countries discuss socioeconomic aspects, ecological monitoring and assessment, forest dynamics, growth trends, dry forests, species richness of woody regeneration and of vascular plants, hurricane impact, tropical cloud forests, Landsat-TM satellite mapping, and quantitative ethnobotany. The book covers first the research and monitoring methodologies for the New World and then the results of individual research and integrated studies on all aspects of forest biodiversity in North and South America and the Caribbean.
Book Synopsis Fundamentals of Tree Ring Research by : James H. Speer
Download or read book Fundamentals of Tree Ring Research written by James H. Speer and published by University of Arizona Press. This book was released on 2010 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text addresses all of the subjects that a reader who is new to the field will need to know and will be a welcome reference for practitioners at all levels. It includes a history of the discipline, biological and ecological background, principles of the field, basic scientific information on the structure and growth of trees, the complete range of dendrochronology methods, and a full description of each of the relevant subdisciplines.
Book Synopsis Forest Giants of the Pacific Coast by : Robert Van Pelt
Download or read book Forest Giants of the Pacific Coast written by Robert Van Pelt and published by Global Forest Press. This book was released on 2001 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Riparian Areas by : National Research Council
Download or read book Riparian Areas written by National Research Council and published by National Academies Press. This book was released on 2002-10-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Book Synopsis Conifers of California by : Ronald M. Lanner
Download or read book Conifers of California written by Ronald M. Lanner and published by . This book was released on 1999 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Biometrics by : Michail Prodan
Download or read book Forest Biometrics written by Michail Prodan and published by Elsevier. This book was released on 2013-10-22 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest Biometrics presents the methods of mathematical statistics and biometrics that are significant to forestry. This book explores other fields related to forestry, which are explained with the help of a large number of practical examples. Organized into 25 chapters, this book starts with an overview of the variety of data that play a significant role in forest management, including the age of trees, the damage caused by storms, the fluctuation of timber prices, bark beetle infestation, and timber volume. This text then examines the factors that are responsible for a random distribution of the values in biological experimentation. Other chapters consider the important advantages of sample surveys compared to complete enumerations, include cheaper samples, wider applicability, quick results, and greater accuracy. The final chapter deals with the factors to be considered in determining the best time for harvesting of timber. This book is a valuable resource for students, research project leaders, and practical workers.
Book Synopsis Regenerating Rangeland Oaks in California by : Douglas D. McCreary
Download or read book Regenerating Rangeland Oaks in California written by Douglas D. McCreary and published by UCANR Publications. This book was released on 2001 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Supporting Roots of Trees and Woody Plants: Form, Function and Physiology by : A. Stokes
Download or read book The Supporting Roots of Trees and Woody Plants: Form, Function and Physiology written by A. Stokes and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication comprises the proceedings of the first International Conference devoted to the structural roots of trees and woody plants. 'The Supporting Roots - Structure and Function,' 20-24 July 1998, Bordeaux, France. The meeting was held under the auspices ofIUFRO WPS 2. 01. 13 'Root Physiology and Symbiosis,' and its aim was to bring together scientific researchers, foresters and arboriculturalists, to discuss current problems in structural root research and disseminate knowledge to an audience from a wide disciplinary background. For the first time in an international conference, emphasis was placed on presenting recent reseach in the field of tree anchorage mechanics and root biomechanics. The way in which tree stability can be affected by root system symmetry and architecture was addressed, as well as how movement during wind sway can influence the development and shape of woody roots. The role of different nursery and planting techniques was discussed, in relation to effects on root system form and development. Root response to different environmental stresses, including water, temperature, nutrient and mechanical stress was addressed in detail. The structure and function of woody roots was also considered at different levels, from coarse to fine roots, with several papers discussing the interaction between roots and the rhizosphere. One of the conference highlights was the presentation of new methods in root research, by a series of workshops held at LRBB-INRA, Pierroton, on the northern border of the Gascony forest.
Book Synopsis Forest Ecosystems by : Richard H. Waring
Download or read book Forest Ecosystems written by Richard H. Waring and published by Academic Press. This book was released on 1998 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cycles, water, carbon.
