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Silvicultural Options For Young Growth Douglas Fir Forests
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Book Synopsis Silvicultural Options for Young-growth Douglas-fir Forests by :
Download or read book Silvicultural Options for Young-growth Douglas-fir Forests written by and published by . This book was released on 2004 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the origin, design, establishment and measurement procedures and first results of a large long-term cooperative study comparing a number of widely different silvicultural regimes applied to young-growth Douglas-fir (Pseudotsuga menziesii) stands managed for multiple objectives. Regimes consist of (1) conventional clearcutting followed by intermediate thinning; (2) retention of reserve trees to create a two-aged stand; (3) small patch cuts dispersed within a thinned matrix, repeated at approximately 15-year intervals to create a mosaic of age classes; (4) group selection within a thinned matrix on an approximate 15-year cycle; (5) continued thinning on an extended rotation; and (6) an untreated control. Each of these regimes is on operationsize units (about 30 to 70 acres each). Output variables to be evaluated include conventional timber growth and yield statistics, harvest costs, sale layout and administration costs, aesthetic effects and public acceptance, soil disturbance, bird populations, and economic aspects. Descriptive statistics and some initial results are presented for the first replicate, established in 1997-98.
Book Synopsis Silvicultural Research and the Evolution of Forest Practices in the Douglas-fir Region by :
Download or read book Silvicultural Research and the Evolution of Forest Practices in the Douglas-fir Region written by and published by . This book was released on 2007 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silvicultural practices in the Douglas-fir region evolved through a combination of formal research, observation, and practical experience of forest managers and silviculturists, and changing economic and social factors. This process began more than a century ago and still continues. It has had a great influence on the economic well-being of the region and on the present characteristics of the regions forests. This long history is unknown to most of the public, and much of it is unfamiliar to many natural resource specialists outside (and even within) the field of silviculture. We trace the history of how we got where we are today and the contribution of silvicultural research to the evolution of forest practices. We give special attention to the large body of information developed in the first half of the past century that is becoming increasingly unfamiliar to both operational foresters andperhaps more importantlyto those engaged in forestry research. We also discuss some current trends in silviculture and silviculture-related research.
Book Synopsis Large-scale Silviculture Experiments of Western Oregon and Washington by : Nathan Jeremy Poage
Download or read book Large-scale Silviculture Experiments of Western Oregon and Washington written by Nathan Jeremy Poage and published by . This book was released on 2007 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: We review 12 large-scale silviculture experiments (LSSEs) in western Washington and Oregon with which the Pacific Northwest Research Station of the USDA Forest Service is substantially involved. We compiled and arrayed information about the LSSEs as a series of matrices in a relational database, which is included on the compact disc published with this report and available online at http://www.fs.fed.us/pnw/research/lsse. The LSSEs are both spatially and temporally large scale, with experimental treatment units between 5 and 100 acres and proposed study durations of 20 to 200 years. A defining characteristic of the LSSEs is that a broad range of response variables are measured to characterize the response of forest ecosystems to experimental treatments. We discuss the general value and limitations of the LSSEs and highlight some possible roles that can be played by the LSSEs in addressing management issues emerging at the beginning of the 21st century.
Book Synopsis General Technical Report PNW-GTR by :
Download or read book General Technical Report PNW-GTR written by and published by . This book was released on 2004 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Largescale silviculture experiments of western Oregon and Washington by :
Download or read book Largescale silviculture experiments of western Oregon and Washington written by and published by DIANE Publishing. This book was released on with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Silviculture for Multiple Objectives in the Douglas-fir Region by :
Download or read book Silviculture for Multiple Objectives in the Douglas-fir Region written by and published by . This book was released on 1998 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Silvicultural Approaches to Animal Damage Management in Pacific Northwest Forests by :
Download or read book Silvicultural Approaches to Animal Damage Management in Pacific Northwest Forests written by and published by . This book was released on 1992 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Balancing Ecosystem Values written by and published by . This book was released on 2005 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Balancing Ecosystem Values: Innovative Experiments for Sustainable Forestry is a compendium of more than 40 contributions from Asia, Europe, and North America. The theme encompasses experiments implemented at an operational scale to test ecological, social, or economic responses to silvicultural treatments designed to balance the complex set of objectives currently targeted in sustainable forest management. Several invited and plenary papers emphasize the variety of outcomes demanded by the public, as well as the essential role that these long-term studies will play in allowing natural resource managers to make better-informed, science-based decisions. A broad spectrum of silvicultural treatments and systems are covered, as are simulation runs with different types of models and discussion about design challenges for scaling up from stands to landscapes. Diverse forest ecosystems, stand structures and plant, animal, and fungal species are also considered. The conference included 2 days in the field where participants saw several types of the comprehensive field experiments firsthand. The conference concluded with a critique from state, private, and public land managers.
Book Synopsis Managing for Biodiversity in Young Douglas-fir Forests of Western Oregon by :
Download or read book Managing for Biodiversity in Young Douglas-fir Forests of Western Oregon written by and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 2004 Science Accomplishments of the Pacific Northwest Research Station by : Pacific Northwest Research Station (Portland, Or.)
Download or read book 2004 Science Accomplishments of the Pacific Northwest Research Station written by Pacific Northwest Research Station (Portland, Or.) and published by . This book was released on 2005 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beyond 2001 written by and published by . This book was released on 2002 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Productivity of Western Forests by :
Download or read book Productivity of Western Forests written by and published by . This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: In August 20-23, 2004, a conference was held in Kamilche, WA, with the title S2Productivity of Western Forests: A Forest Products Focus. S3 The meeting brought together researchers and practitioners interested in discussing the economic and biological factors influencing wood production and value. One of the underlying assumptions of the meeting organizers was that management activities would be practiced within a framework of sustaining or improving site productivity; thus, several papers deal with methods to protect or improve productivity or discuss new studies designed to test the effects of various practices. This proceedings includes 11 papers based on oral presentations at the conference, 3 papers based on posters and 2 papers describing the Fall River and Matlock Long-Term Site Productivity study areas visited on the field tours. The papers cover subjects on forest harvesting activities, stand establishment, silviculture, site productivity, remote sensing, and wood product technologies.
Book Synopsis A Basis for Understanding Compatibility Among Wood Production and Other Forest Values by : Richard W. Haynes
Download or read book A Basis for Understanding Compatibility Among Wood Production and Other Forest Values written by Richard W. Haynes and published by . This book was released on 2002 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetics, Genomics and Breeding of Conifers by : Christophe Plomion
Download or read book Genetics, Genomics and Breeding of Conifers written by Christophe Plomion and published by CRC Press. This book was released on 2011-08-10 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by internationally reputed researchers in the field, this book presents the implications of the genomic revolution for conifers—promoting a better understanding of the evolution of these organisms as well as new knowledge about the molecular basis of quantitative trait variation. Both of these discoveries play important roles in their domestication. Topics include cytogenetics, patterns of nucleotide diversity, genetic mapping, integration of molecular markers in breeding, transcriptomics, advances in proteomics and metabolomics in gymnosperms, and economic importance.
Book Synopsis Permanent-plot Procedures for Silvicultural and Yield Research by : Robert O. Curtis
Download or read book Permanent-plot Procedures for Silvicultural and Yield Research written by Robert O. Curtis and published by . This book was released on 2005 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reviews purposes and procedures for establishing and maintaining permanent plots for silvicultural and yield research, sampling and plot design, common errors, and procedures for measuring and recording data. It is a revision and update of a 1983 publication. Although some details are specific to coastal Pacific Northwest conditions, most of the material is widely applicable.
Book Synopsis 2002 Science Accomplishments of the Pacific Northwest Research Station by :
Download or read book 2002 Science Accomplishments of the Pacific Northwest Research Station written by and published by . This book was released on 2003 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Northwest Forest Plan Research Synthesis by :
Download or read book Northwest Forest Plan Research Synthesis written by and published by . This book was released on 2001 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
