Download or read book Impact of Extraction Distance on Skidder Productivity written by Paul Hynes and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terra mechanical and Statistical Analyses of Four wheel Grapple Skidder Performance Data written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of skidder productivity typically involve a range of conditions that support specific study objectives related to harvest system, terrain, forest attribute, or other aspects of the harvest. Skidder production models often fit the data well because cycle time and productivity are strongly related to load size and skid distance. Changes in skidder design over time have increased load capacity, potential machine speed, and operator comfort. Since the harvest system often limits the observed range in speed and load size, the tradeoffs between those factors have not been a primary focus of production studies. We analyzed 33 studies with 77 estimates of skidder productivity using a typical regression approach and an approach based on the Wismer and Luth terra-mechanical (TM) relationships. The regression approach resulted in a good fit of productivity but poorer fits of cycle and element times. Nonlinear models developed with the TM approach also fit but had larger values for mean square error (MSE) than the linear regressions. The use of 14 additional studies with 33 estimates as validation data produced a lower mean square prediction error (MSPE) for nonlinear TM models when compared to the linear regression models. The TM approach allowed for the tradeoff between speed and load size to be modeled explicitly. We developed a spreadsheet production model to demonstrate the effect of choices made by harvest planners, logging managers, and operators on specific production goals.
Download or read book Forest and Biomass Harvest and Logistics written by Jingxin Wang and published by Springer Nature. This book was released on 2022-11-26 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains forest and woody biomass harvest, harvesting machines, systems, logistics, supply chain management, best management practices, harvest scheduling and carbon sequestration. It also covers applications of harvesting principles in forest and biomass management practices. The book provides an in-depth understanding of functions and applications of current and future harvesting technologies, the unique characteristics of harvesting machine with respect to cost, productivity, and environmental impacts. Special features include harvest machine illustrations and images of field operations, tabular presentations of filed studies of forest operations and detailed modelling processes for forest and biomass harvest logistics and supply chain management. Specifically, the book is designed for students, researchers, educators, and practitioners in the field of forest and biomass harvest and logistics. The book’s contents have been tested in teaching as the Harvesting Forest Product class for undergraduates and graduates in the Division of Forestry and Natural Resources at West Virginia University since 2000. The information contained in this book is a robust reference resource for students who would be future forest and biomass managers, timber contractors, entrepreneurs, researchers, and educators in the fields of forest and biomass operations, engineering, and resource management.
Download or read book Regional Code of Practice for Reduced impact Forest Harvesting in Tropical Moist Forests of West and Central Africa written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2005 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: FAO publication
Download or read book Productivity of skidders in selection cuts of southwestern ponderosa pine written by George Roger Sampson and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Forest Engineering Research Institute of Canada written by and published by . This book was released on 1996 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cut to length and Tree length Harvesting Systems in Central Alberts written by Björn Andersson and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Harvesting Small Trees and Forest Residues written by Bryce J. Stokes and published by . This book was released on 1989 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Wood Production in Ecosystem Management written by International Union of Forestry Research Organizations. Sustainable Forestry Working Group and published by . This book was released on 1997 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scottish Forestry written by and published by . This book was released on 1986 with total page 1310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Forestry Handbook written by Laslo Pancel and published by Springer. This book was released on 2015-12-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a cross-section of all outstanding experience in all fields of tropical forestry under a drastically changing environment induced by climate change. It sheds light on the existing know-how and presents it in a concise and efficient way for the scientist and professional in charge of planning, implementing and evaluating forest resources. The Tropical Forestry Handbook provides proven and/or promising alternative concepts which can be applied to solve organizational, administrative and technical challenges prevailing in the tropics. Presented are state of the art methods in all fields concerning tropical forestry. Emphasize is given to methods which are adapted to- and which safeguard - environmental conditions.
Download or read book International Journal of Forest Engineering written by and published by . This book was released on 2001 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining Fixed and Operating Costs of Logging Equipment written by Edwin S. Miyata and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PNW GTR written by and published by . This book was released on 2005 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Forest Productivity for Timber written by and published by . This book was released on 1998 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
