Download or read book A Cost Comparison Between Cut to length and Full Tree Harvesting Systems Operating for Kimberly Clark Longlac Woodlands Inc written by Michael James McLarty and published by . This book was released on 1999 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Woodland Section papers written by Canadian Pulp and Paper Association. Woodlands Section and published by . This book was released on 1959 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulp Paper written by and published by . This book was released on 1960 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulp Paper Magazine of Canada written by and published by . This book was released on 1960 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulpwood Production and Saw Mill Logging written by and published by . This book was released on 1967 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulp and Paper Magazine of Canada written by and published by . This book was released on 1966 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pulp and Paper Manufacture written by and published by . This book was released on 1969 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Forest Industries written by and published by . This book was released on 1975 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Pulp and Paper Manufacture written by and published by . This book was released on 1968 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of Tree length and Shortwood Transport Systems Used by Kimberly Clark in Their Longlac Haul Operations written by Ian Charles Venne and published by . This book was released on 2003 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Communications Historiques written by Canadian Historical Association and published by . This book was released on 1982 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection from the papers presented at the annual meeting.

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 A Comparison of Full tree Versus Cut to length Systems in the Manitoba Model Forest written by Jean-François Gingras and published by Pointe Claire, Québec : Forest Engineering Research Institute of Canada = Institut canadien de recherches en génie forestier. This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of the Lumber Yield from Cut to length and Full tree Harvesting Systems written by Jean A. Plamondon and published by Pointe-Claire, Québec : Forest Engineering Research Institute of Canada = Institut canadien de recherches en génie forestier. This book was released on 1997 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Tree and Bundle Size on the Productivity and Costs of Cut to length and Multi stem Harvesting Systems in Eucalyptus Pulpwood written by Andrew Mark McEwan and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There is currently a global increase in Eucalyptus pulpwood plantations. Harvesting systems traditionally utilised in the northern hemisphere are being used in Eucalyptus pulpwood plantations worldwide. However, the small tree size and complexity of debarking Eucalyptus have provided harvesting with productivity and cost challenges not previously experienced in northern-hemisphere conditions. Much research has been invested in these two harvesting methods in northern-hemisphere species and conditions. There is little research available on mechanised processing-machine productivity and costs in Eucalyptus. This investigation aimed to quantify the effect that tree and bundle size has on the productivity of different processing machines in Eucalyptus plantation pulpwood. This was done through regression analysis, whereby productivity models that included tree size and bundle size were constructed. The research also aimed to determine whether or not the multi-stem systems were more cost-effective in smaller tree sizes. The research investigated five mechanised harvesting options that forestry managers could use in Eucalyptus pulpwood plantations. These systems consisted of one CTL system, one full-tree system with single-stem processing and three full-tree systems with multi-stem processing. The CTL system used a harvester to process the trees into logs and to extract them. The full-tree system with single-stem processing used a dangle-head processor (DHP) to process trees into logs. The first full-tree system with multi-stem processing used a chain-flail debrancher debarker (CFDD) to produce debarked and debranched tree lengths, which were slashed into logs. The remaining full-tree, multi-stem systems both produced chips. The first used a chain-flail debrancher debarker chipper (CFDDC) and the second, a CFDD feeding into a stand-alone disc chipper (CFDD & C). The productivity data, measured as m3 per productive machine hour (PMH), was then statistically analysed using regression techniques. Productivity equations were formulated, considering tree size and bundle size, as well as the quadratic functions of these two variables and the interaction between them. Bundle size was only applicable to the multi-stem processing machines. The productivity equations successfully predicted processing-machine productivity, using tree size and bundle size as input variables. Apart from the 0.075 m3 tree size class, the CFDD had the highest overall productivity. The costs of the five systems were then calculated for different tree sizes. No single system was more cost-effective than the others across all tree sizes. In 0.075 m3 trees, the CFDDC system proved the most cost-effective. All systems evidenced high costs in the 0.075 m3 trees, ranging between $19.43 per m3 for the CFDDC system to $28.84 for the harvester system. In 0.40 m3 trees, the cost differences between systems were lower, ranging from .91 per m3 for the DHP system to $11.84 per m3 for the CFDD & C. This study confirms that the CTL system was very expensive to operate in the small tree sizes (0.075 m3). There is a cross-over point at 0.25 m3 per tree, where the CTL system costs become lower than those of the full-tree system. At the 0.40 m3 tree size, the full-tree system is slightly more expensive than the CTL system. Copyright.

Download or read book An Analysis of Harvesting Costs in Mixedwood Forest written by Jean Favreau and published by Pointe-Claire, Québec : Forest Engineering Research Institute of Canada = Institut canadien de recherches en génie forestier. This book was released on 1999 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest Engineering Research Institute of Canada studied costs of clearcut operation under full tree, cut to length and manual systems. Total costs were higher than in softwood forests, especially for the manual system. However, since average volume per stem is higher in mixedwood forest than in softwood forest, overall harvesting costs were comparable.

Download or read book Productivity and Cost of a Cut to length Commercial Thinning Operation in a Northern California Redwood Forest written by Kigwang Baek and published by . This book was released on 2018 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cut-to-length (CTL) harvesting systems have recently been introduced to the redwood forests of California's north coast. These machines are being used to commercially thin dense redwood (Sequoia sempervirens) stands which tend to form clumps of stems that vigorously sprout from stumps after a harvest. One of the challenges is to avoid damaging residual trees which can decrease productivity, increase costs, and lower the market value of trees. The goal of this study was to evaluate the productivity and costs associated with CTL systems used in a redwood forests and use that data to develop equations for predictions. Time and motion study methods were used to calculate the productivity of a harvester and forwarder used during the winter and summer seasons. Regression equations for each machine were developed to predict delay-free cycle (DFC) times. Key factors that influenced productivity for the harvesters was tree diameter and distance between harvested trees. Productivity for the harvesting ranged from 28.8 to 35.6 m3 per productive machine hour (PMH). For the forwarders, the number of logs per load and travel distance were important factors affecting productivity. Forwarder productivity ranged from 22.4 to 23.3 m3 per PMH. Total stump-to-truck costs for CTL harvesting system ranged from US$17.1 to $22.8 per m3.