Download or read book Tools to Minimize the Impacts of Energy Wood Harvesting on the Environment and Soil Productivity in Minnesota written by Anna L. Robertson and published by . This book was released on 2008 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Harvesting Noncommercial Wood for Energy written by Colin J. High and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a preliminary report for discussion embodying some findings of analyses undertaken at the Thayer School of Engineering. These were conducted as part of a feasibility study for a 50-megawatt wood-fired power plant in Vermont and in preparation for an environmental impact assessment of a wood-fired electric/steam congeneration facility now in the planning phase for a site in Maine. The major research problems associated with the environmental impact of harvesting wood for electric power generation and industrial energy are highlighted.
Download or read book Current Status and Long term Trends of Silvicultural Practices in Minnesota written by and published by . This book was released on 2009 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Biomass written by T. Satoo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lord Rutherford has said that all science is either physics or stamp collecting. On that basis the study of forest biomass must be classified with stamp collecting and other such pleasurable pursuits. Japanese scientists have led the world, not only in collecting basic data, but in their attempts to systematise our knowledge of forest biomass. They have studied factors affecting dry matter production of forest trees in an attempt to approach underlying phYf'ical principles. This edition of Professor Satoo's book has been made possible the help of Dr John F. Hosner and the Virginia Poly technical Institute and State University who invited Dr Satoo to Blacksburg for three months in 1973 at about the time when he was in the final stages of preparing the Japanese version. Since then the explosion of world literature on forest biomass has continued to be fired by increasing shortages of timber supplies in many parts of the world as well as by a need to explore renewable sources of energy. In revising the original text I have attempted to maintain the input of Japanese work - much of which is not widely available outside Japan - and to update both the basic information and, where necessary, the conclusions to keep them in tune with current thinking. Those familiar with the Japanese original will find Chapter 3 largely rewritten on the basis of new work - much of which was initiated while Dr Satoo was in Blacksburg.
Download or read book Harvesting Systems written by and published by . This book was released on 1992 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1984-11 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impacts of Harvesting Wood for Energy written by James E. Johnson and published by Great Lakes Regional Biomass Energy Program. This book was released on 1987 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy and Nonfossil Fuel Research written by and published by . This book was released on 1979 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations written by and published by . This book was released on 2014 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a high-tonnage harvesting system designed specifically to operate efficiently in the expected stand types of a bioenergy scenario was built, deployed, and evaluated in a production setting. Stands on which the system was evaluated exhibited the heavy stocking levels (> 600 stems per acre) and tree size distributions with significant volume in small stems (down to 2" DBH) that were expected in the modified energy plantation silvicultural approach. The harvest system also was designed to be functional in the traditional plantation stands dominating the commercial forestry landscape in the region. The Tigercat 845D feller buncher, which was a prototype machine designed for the high tonnage harvest system, used a boom-mounted prototype DT1802 shear felling head and incorporated a number of options intended to maximize its small-stem productivity, including: a high-speed shear severing system that was cheaper to operate than a saw; a large-pocket felling head that allowed larger accumulations of small stems to be built before expending the time to drop them for the skidder; efficient, low ground pressure, tracked carrier system to decrease the amount of maneuvering, saving time and minimizing soil disturbance; and various energy-saving devices to lower fuel costs and minimize air quality impacts. Overall, the feller buncher represented a quantum advance in small-stem harvesting technology. Extensive testing showed the machine's production rate to be relatively insensitive to piece size, much less so than comparable traditional equipment. In plantation stands, the feller buncher was able to produce approximately 100 green tons of biomass per productive machine hour (PMH), and in natural stands, it produced nearly 120 green tons per PMH. The ability of the high tonnage feller buncher to maintain high productivity in stands with smaller diameter stems is something that has not been achieved in previous feller buncher designs. The Tigercat 845D feller buncher is now a production machine for Tigercat and is being sold in their current product line. The high-speed felling system was paired with a Tigercat 630D skidder and high-capacity grapple; one that could match the felling productivity when pulling small stems. The harvesting system minimized hourly costs using a single, high-capacity skidder (with a single operator), rather than two smaller ones, which is the traditional practice. The skidder itself can be considered a mid-range size and had an engine no larger than other machines in its class, but it incorporated a very large capacity 25 ft2 grapple. The large grapple is well suited to grabbing and hauling a large bunch of small-diameter trees, as produced by the high tonnage feller buncher. The grapple worked effectively in larger stems as well, but its ability to carry large numbers of small stems meant the average payload did not drop as stand DBH decreased. Tests with the machine indicated its travel speeds were nearly the same as, or perhaps slightly better than, conventionally equipped skidders, but grapple capacity was 75% larger. Productivity and cost per ton of the new skidder were better than conventional skidders for average skid distances of any length greater than 100 feet. Measured skidder productivity was as high as 143 gt/PMH. Its productivity exceeded that of the high-capacity feller buncher for skid distances out to nearly 700 feet, so system productivity could be expected to remain high for stands of a size typical in the southern U.S. The Tigercat 630D skidder is a production machine for Tigercat and the large grapple can now be ordered by customers using it for small diameter trees. When the feller buncher and skidder are analyzed as a two-machine system, overall productivity is fixed at the level of the least productive machine. Results from a set of side-by-side tests in the same density stand with conventional feller bunchers and skidders showed that the high tonnage system produced 97 gt/P ...
Download or read book Miscellaneous Publication written by and published by . This book was released on 1981 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initial Harvesting Scenarios for a Generic Environmental Impact Statement written by and published by . This book was released on 1991 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials and the Environment written by and published by . This book was released on 1995 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Potential Environmental Impact of Harvesting Wood for Energy written by Dennis M. McCarthy and published by . This book was released on 1979 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silviculture Tuned to Nature and Wood Energy Production written by Canadian Forest Service. Science and Sustainable Development Directorate and published by Canadian Government Publishing. This book was released on 1994 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop whose proceedings are presented in this document provided an opportunity to learn from scientific papers and field demonstrations how Swiss forest managers combine bioenergy production, silviculture, and nature. Topics of the papers provided in this document include Swiss forests and their bioenergy potential, Swiss silvicultural practice, biomass and wood energy harvesting, wood energy applications in Switzerland, harvesting and preparation of energy wood, economic evaluation of impacts from a biomass fuel market in Nova Scotia, the use of gray alder in hardwood plantation forestry, use of forestry as an energy source in the United Kingdom, and management practices for jack pine in Ontario.
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 Short rotation Wood Production Systems for Marginal Land in the Great Lakes Region written by Kimberly A. Majerus and published by . This book was released on 1986 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1982 Energy Policy Conservation Report written by Minnesota. Energy Division and published by . This book was released on 1982 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
