Download or read book Studies on the Planning Methods for Forest Road Networks and Decisions on the Order of Forest Road Construction written by Tetsuro Sakai and published by . This book was released on 1987 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Memoirs of the College of Agriculture Kyoto University written by Kyōto Daigaku. Nōgakubu and published by . This book was released on 1992 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Weighted Graph Optimization Approach for Automatic Location of Forest Road Networks written by Jürg Andreas Stückelberger and published by vdf Hochschulverlag AG. This book was released on 2008 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a large majority of regions where forestry activities occur, roads are the backbone of their efficient management. Automatic planning of a road network is an ongoing, challenging task. Advances have been aided by the increased availability and accuracy of digital terrain models, greater computing power, and improvements in optimization techniques. Defining the objectives and deriving adequate objective functions are crucial steps in guiding the solution toward an ideal network, especially when individual goals may conflict. For example, whereas the conservationist might prefer that a layout minimizes any detrimental impacts on the environment, the forest landowner may favor cost-minimal roads while the forest operator would like to have a dense network in order to reduce transportation costs.This thesis introduces models for three objective functions: - forest road construction and maintenance costs, - negative ecological effects from such roads, - the suitability, or attractiveness, of a network for cable-yarding.Case studies in mountainous project areas illustrate the trade-offs among these conflicting goals, and demonstrate how to optimize different objectives in order to make an optimal decision overall.
Download or read book Environment Abstracts Annual 1988 written by Bowker Editorial Staff and published by R. R. Bowker. This book was released on 1989-04 with total page 1476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Forest Road Management with Economic and Environmental Objectives written by Matthew P. Thompson and published by . This book was released on 2009 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the basic questions facing transportation planners and road managers is how to provide and maintain a road system that provides efficient access to the forest while limiting adverse effects roads can have on water and soil resources. The purpose of this study is to develop decision support models that will lead to improved economic and environmental efficiency in the management of forest road networks. In particular, I focus on developing techniques to facilitate tradeoff analysis and help landowners identify optimal erosion control policies. Forest roads contribute to accelerated erosion, which can degrade water quality and aquatic habitat. Federal agencies in the Pacific Northwest are actively seeking to remove and/or improve roads in order to restore watershed condition, and private landowners face regulatory restrictions under the Clean Water Act and state forest practice acts. Though the treatment that best achieves management objectives for a single road can often be identified, at larger scales the combination of treatments to assign to a suite of roads can become too large for enumeration. In these circumstances decision aids can and have been used. This dissertation is comprised of five manuscripts that pair industrial engineering and forest engineering principles in order to provide relevant decision support tools to facilitate forest road management. The manuscripts address a range of available treatments, including regular maintenance, upgrading, and road removal. The first chapter describes the challenges associated with erosion control, reviews available road treatments, and summarizes salient applications of decision support for road management, focusing on applications where controlling road-related erosion was an objective. The second chapter introduces a tradeoff analysis framework for controlling road-related erosion. The third chapter presents an algorithm for routing maintenance vehicles (graders) across a forest road network in order to minimize total tour length, a proxy for operating cost. Chapter four extends this work to a multi-objective context, seeking efficient solutions that simultaneously minimize vehicle operating cost plus grading cost and hazard weighted rut depth, a measure of environmental performance. Chapter five develops optimal policies for recycling aggregate from decommissioned forest roads, and demonstrates that recovery and reuse of aggregate can subsidize road removal projects. Chapter six extends this work to a multi-objective context, approximating the efficient frontier for length of road removed and removal cost, and investigating further the potential for aggregate recycling to effectively subsidize decommissioning projects. Chapter seven concludes the dissertation with a review of the preceding chapters.
Download or read book Guide for planning construction and maintenance of forest roads written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-06-20 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of the Manual introduces the main steps of forest road network planning and gives guidance on road construction under different site conditions. It demonstrates good practices to minimize the area used for building purposes, to keep the environmental impact as low as possible and to maintain forest productivity. It describes the machinery suitable for the different construction phases and compares the advantages of machine types. The second part of the Manual introduces the goals and best practices of regular forest road maintenance which is a key operation that enables multi-purpose use of forests. It gives an overview on the main causes of forest road degradation and explains the different maintenance regimes and maintenance activities.
Download or read book U S Forest Service Research Paper SO written by and published by . This book was released on 1977 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Management and Planning written by Pete Bettinger and published by Academic Press. This book was released on 2016-12-29 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest Management and Planning, Second Edition, addresses contemporary forest management planning issues, providing a concise, focused resource for those in forest management. The book is intermixed with chapters that concentrate on quantitative subjects, such as economics and linear programming, and qualitative chapters that provide discussions of important aspects of natural resource management, such as sustainability. Expanded coverage includes a case study of a closed canopy, uneven-aged forest, new forest plans from South America and Oceania, and a new chapter on scenario planning and climate change adaptation. Helps students and early career forest managers understand the problems facing professionals in the field today Designed to support land managers as they make complex decisions on the ecological, economic, and social impacts of forest and natural resources Presents updated, real-life examples that are illustrated both mathematically and graphically Includes a new chapter on scenario planning and climate change adaptation Incorporates the newest research and forest certification standards Offers access to a companion website with updated solutions, geographic databases, and illustrations
Download or read book Department of the Interior and Related Agencies Appropriations for 1999 Review of national energy policy written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1998 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Value Chain Optimization and Sustainability written by Sophie D'Amours and published by CRC Press. This book was released on 2016-12-01 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a global perspective on the various issues that the industry has to face as well as to provide some key global strategies that can help coping with those global challenges, such as collaboration, strategic value chain planning, and interdependency analyses. It presents literature reviews, strategic research orientations, assessment of some current key issues, and state-of-the-art methodologies.
Download or read book The National Forest Manual written by U.S. Forest Service and published by . This book was released on 1911 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regulations of the Secretary of Agriculture and instructions to forest officers relating to claims, settlement, and administrative sites on national forest lands.
Download or read book Department of the Interior and Related Agencies Appropriations for 1999 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1998 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Meeting on Planning and Implementing Forest Operations to Achieve Sustainable Forests written by Council on Forest Engineering. Meeting and published by . This book was released on 1996 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1972 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Heuristic Process for Solving Mixed integer Land Management and Transportation Planning Models written by and published by . This book was released on 1991 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by United States. President's Advisory Panel on Timber and the Environment and published by . This book was released on 1973 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
