Download or read book Skyline Logging Productivity Under Alternative Harvesting Prescriptions and Levels of Utilization in Larch Fir Stands Classic Reprint written by Rulon B. Gardner and published by Forgotten Books. This book was released on 2017-10-28 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Skyline Logging Productivity Under Alternative Harvesting Prescriptions and Levels of Utilization in Larch-Fir Stands Intensive wood utilization can have positive or negative environmental impacts, depending on the level of utilization, harvesting methods, and ecosystem response. 'although some general information is available from past studies about responses hydrology, flora, and fauna-the net results of applying increasing levels of timber utilization have not been adequately determined. Hence, a study was designed for the larch-fir type in Montana (fig. 1) to monitor biological-ecological responses to an array of alternative silvicultural and utilization timber harvesting prescriptions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Skyline logging productivity under alternative harvesting prescriptions and levels of utilization in larch fir stands written by Rulon B. Gardner and published by . This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Larch-fir stands in northwest Montana were experimentally logged to determine the influence of increasingly intensive levels of utilization upon rates of yarding production, under three different silvicultural prescriptions. Variables influencing rate of production were also identified.
Download or read book Skyline Logging Productivity Under Alternative Harvesting Prescriptions and Levels of Utilization in Larch fir Stands written by Robert B. Gardner and published by . This book was released on 1980 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Skyline logging productivity under alternative harvesting prescriptions and levels of utilization in larch fir stands written by Rulon B. Gardner and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tree Damage from Skyline Logging in a Western Larch Douglas fir Stand written by Robert Earl Benson and published by . This book was released on 1981 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Damage to shelterwood leave trees and to understory trees in shelterwood and clearcut logging units logged with skyline yarders was measured, and related to stand conditions, harvesting specifications, and yarding system-terrain interactions. About 23 percent of the marked leave trees in the shelterwood units were killed in logging, and about 10 percent had moderate to serious damage. About 40 percent of the understory trees ·were killed. Heaviest damage in shelterwood was associated with steeper slopes, more trees per acre, and cross-slope angle to the skyline. Understory damage was greater on larger saplings than on seedlings.
Download or read book Tree Damage from Skyline Logging in a Western Larch Douglas Fir Stand Classic Reprint written by Robert E Benson and published by Forgotten Books. This book was released on 2018-03-30 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Tree Damage From Skyline Logging in a Western Larch/Douglas-Fir Stand The damage reported here was observed within the first year of logging. Secondary effects of windthrow, insects, and disease are beyond the scope of this report, but are being followed in long term studies. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Evaluation of Skyline Harvesting System Feasibility Under Alternative Silvicultural and Utilization Prescriptions written by David F. Gibson and published by . This book was released on 1974 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Core Study Plan written by United States. Forest Service. Northern Region and published by . This book was released on 1973 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tree Damage from Skyline Logging in a Western Larch Douglas fir Stand written by Robert Earl Benson and published by . This book was released on 1981 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Productivity for Whole Tree Tree Length and Log Length Skyline Thinning in 35 Year Old Douglas fir Stands of Western Oregon written by Nathan E. Putnam and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whole tree and tree length thinning are two alternatives which are likely to be more productive and may prove to be more cost effective than conventional log length thinning. The purpose of this study was to evaluate and compare log length, tree length, and whole tree thinning techniques in terms of productivity and harvesting costs. The thinning operation took place in a second-growth Douglas-fir stand [Pseudotsuga menziesii (Mirb.) Franco] (average dbh = 12.8") using a small skyline yarder (28' tower, 120 HP) in a gravity return configuration. The treatments were defined by the amount of work done by the faller prior to yarding. Log length implies that felling, limbing, bucking and topping occured at the stump. Tree length indicates that trees were felled, limbed and topped only, and finally, whole trees were felled only prior to yarding. A rubber-tired cable skidder was used to swing material from the landing chute to a processing area. Here the skidder operator Forest Engineering presented on April 14, 1983 completed any limbing and bucking which was necessary. He then sorted and decked the logs prior to loading. During log length thinning, logs were either cold decked in front of the yarder or swung with the skidder to a loading deck. Detailed time studies were used to evaluate the felling and yarding operations for each of the three thinning techniques. Multiple linear regression was then used to develop predictive models for felling and yarding work cycles. An analysis of the delays on this study made it possible to separate out delays which were affected by a particular thinning technique, rather than having a single prorated delay time as is usually done. By combining results from the regression and delay analyses, estimates of productivity for each thinning technique were obtained. Finally, harvesting costs in dollars per cunit at the loading deck were generated and used to compare log length, tree length, and whole tree thinning. Results indicated that where cold decking is feasible and will not overly hamper the operation it will probably still be the cheapest alternative since a skidder is not required. The cost per cunit for this method was $8.24 or 11% cheaper than its closest competitor, the whole tree system. However, where cold decking is not feasible, as is often the case on steep slopes with narrow roads, the whole tree technique will be the most cost effective alternative. It has a per cunit cost which is $10.06 or 12% less expensive than conventional log length thinning with a skidder swing. The advantage to the whole tree system results primarily from transferring limbing and bucking from the stump to the landing where it is not only done more efficiently, but also reduces operator idle time on the skidder swing.
Download or read book Non wood Forest Products from Conifers written by William M. Ciesla and published by Fao. This book was released on 1998 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this paper is to provide a global review of the non-wood uses of conifers. For the purposes of this paper, conifers are defined as trees and shrubs of the botanical orders Coniferales, Taxales and Ginkgoales (Rushforth 1987). Although some services are briefly mentioned, the focus of this paper is on products which conifers provide species, which are important sources of non-wood forest products, and places where these products are harvested. With the exception of essential oils, which can be obtained from several parts of the tree, the products described are organized by the part of the tree from which they are obtained (e.g. foliage, bark and roots, resin, seeds and cones). Where possible, data on levels of production and international trade are presented. Problems associated with the sustainable management of these products and compatibility or conflicts with other land uses are also presented. Both contemporary and historical or traditional uses of non-wood products from conifers are discussed.
Download or read book Saplings written by Noel Streatfeild and published by Persephone Books. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "First published in 1945 by Collins"--Copyright page.
Download or read book Management of Wildlife and Fish Habitats in Forests of Western Oregon and Washington Chapter narratives written by and published by . This book was released on 1985 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetation Monitoring written by Caryl L. Elzinga and published by DIANE Publishing. This book was released on 1998-05 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This annotated bibliography documents literature addressing the design and implementation of vegetation monitoring. It provides resources managers, ecologists, and scientists access to the great volume of literature addressing many aspects of vegetation monitoring: planning and objective setting, choosing vegetation attributes to measure, sampling design, sampling methods, statistical and graphical analysis, and communication of results. Over half of the 1400 references have been annotated. Keywords pertaining to the type of monitoring or method are included with each bibliographic entry. Keyword index.
Download or read book Growing Gourmet and Medicinal Mushrooms written by Paul Stamets and published by Ten Speed Press. This book was released on 2011-07-13 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed and comprehensive guide for growing and using gourmet and medicinal mushrooms commercially or at home. “Absolutely the best book in the world on how to grow diverse and delicious mushrooms.”—David Arora, author of Mushrooms Demystified With precise growth parameters for thirty-one mushroom species, this bible of mushroom cultivation includes gardening tips, state-of-the-art production techniques, realistic advice for laboratory and growing room construction, tasty mushroom recipes, and an invaluable troubleshooting guide. More than 500 photographs, illustrations, and charts clearly identify each stage of cultivation, and a twenty-four-page color insert spotlights the intense beauty of various mushroom species. Whether you’re an ecologist, a chef, a forager, a pharmacologist, a commercial grower, or a home gardener—this indispensable handbook will get you started, help your garden succeed, and make your mycological landscapes the envy of the neighborhood.
Download or read book Bioeconomy written by Iris Lewandowski and published by Springer. This book was released on 2017-12-11 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This book defines the new field of "Bioeconomy" as the sustainable and innovative use of biomass and biological knowledge to provide food, feed, industrial products, bioenergy and ecological services. The chapters highlight the importance of bioeconomy-related concepts in public, scientific, and political discourse. Using an interdisciplinary approach, the authors outline the dimensions of the bioeconomy as a means of achieving sustainability. The authors are ideally situated to elaborate on the diverse aspects of the bioeconomy. They have acquired in-depth experience of interdisciplinary research through the university’s focus on “Bioeconomy”, its contribution to the Bioeconomy Research Program of the federal state of Baden-Württemberg, and its participation in the German Bioeconomy Council. With the number of bioeconomy-related projects at European universities rising, this book will provide graduate students and researchers with background information on the bioeconomy. It will familiarize scientific readers with bioeconomy-related terms and give scientific background for economists, agronomists and natural scientists alike.
Download or read book The Alcohol Textbook written by K. A. Jacques and published by . This book was released on 2003 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
