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Books > Professional & Technical > Agriculture & farming > Forestry & silviculture: practice & techniques
This Volume contains the papers presented by twenty-eight invited speakers at the symposium entitled, "Genetic Manipulation of Woody Plants," held at Michigan State University, East Lansing, Michigan, from June 21-25, 1987. Also included are abstracts of contributed poster papers presented during the meeting. That the molecular biology of woody plants is a rapidly expanding field is attested to by the large attendance and high level of enthusiasm generated at the conference. Leading scientists from throughout the world discussed challenging problems and presented new insights into the devel opment of in vitro culture systems, techniques for DNA analysis and manipulation, gene vector systems, and experimental systems that will lead to a clearer understanding of gene expression and regulation for woody plant species. The presence at the conference of both invited speakers and other scientists who work with nonwoody plant species also added depth to the discussions and applicability of the information presented at the conference. The editors want to commend the speakers for their well-organized and informative talks, and feel particularly indebted to the late Dr. Alexander Hollaender and others on the planning committee who assist ed in the selection of the invited speakers. The committee consisted of David Burger (University of California, Davis), Don J. Durzan (University of California, Davis) , Bruce Haissig (U. S. Department of Agriculture Forest Service), Stanley Krugman (U. S. Department of Agriculture Forest Service) , Ralph Mott (North Carolina State University), Otto Schwarz (Univer.sity of Tennessee, Knoxville), and Roger Timmis (Weyerhaeuser Company).
Felix qui potuit rerum cognoscere causas. Pub/ius Vergilius Mara Forests have long been one of mankind's most important natural re sources and not the least because forests are, if properly managed, re newable. They serve us in many different ways, but above all in pro viding us with wood, one of the most remarkable and useful of all natural materials. Reaction wood, compression wood in gymnosperms and tension wood in the arboreal angiosperms, serves the function of making it possible for trees to perform movements. In the ancient Ginkgo and in the conifers, the ability to form compression wood is of vital importance to each and every tree. Compression wood plays a crucial role in the regulation of tree form in these gymnosperms, and their arborescent habit probably depends on their ability to develop this tissue. Few forest and plantation trees are devoid of compression wood in their stem, and all of them have it in their branches. Unfortu nately, what is necessary and beneficial for the tree in this case is harmful to mankind, for compression wood is a very serious defect in both sawtimber and pulpwood. It is now almost 20 years since the last complete survey of compres sion wood was published, namely Arthur H. Westing's excellent review of this subject. My major objective in writing the present book has been to bring together in one single work everything that is currently known about compression wood."
This book presents a synopsis, with an innovative approach, of abundance, types and conditions of work performed in the tropical plantation and natural forests. It covers work of formally and informally employed, and of own-account small-scale forest users, women and children. Activities in tree harvesting are analyzed, also on-site conversion by pitsawing, planting and pruning. The abilities of the workers and their efforts while fulfilling their tasks, resulting in performance and workload, are described with many examples of published studies. Influencing variables from organizational, technical and managerial sides are considered as much as included in the studies. The detailed descriptions demonstrate the methodical state of ergonomic research. For better understanding of the coverage the background of the development of forest work science is described. The lasting influence of Taylorism and the roles of ILO and FAO as well as NGOs, e.g. in certification, are pointed out.
This volume synthesizes and analyzes thirty years of hydrological research in the Danum Valley Conservation Area, a lowland dipterocarp rainforest in Sabah, Malaysia. Ian Douglas explores the role of water in the rainforest ecosystem, setting out the ecological, climatological and geological context of present-day hydrological processes, soil erosion and stream sedimentation. He emphasizes the role of extreme events and natural disturbances in sediment supplies and the evolution of drainage pathways and explains the pathways of rainfall and stream sediment. Douglas then explores the impacts caused by logging, the extreme pulses of sedimentation and the effects of log removal and logging road construction, examining the effects of major storms in the 20 years after tree harvesting. Methods of minimizing logging damage to soils and streams are discussed and the effects on flora and fauns are considered.
Has anyone today any conception of the grandeur, the extent, the million board feet a day production...the entire meaning of the forests of the Pacific Northwest-the "Big Woods"? The photographs alone in this absorbing book will instantly transport the reader into this former world. Here was the greatest stand of Douglas fir timber in existence and here was labor for the Poles, Finns, Swedes and Norskies lured out of the Midwest to convert the mammoth trees into the lumber that helped build the West Coast cities. Ralph Andrews presents a fascinating subject-the hope, courage and tragedy in the lives of the men and women who opened up the dense native forests or as the loggers said "brought daylight into the swamp," and converted the trees into the lumber which built the West Coast cities. Here are many nostalgic scenes showing high climbers, fallers balanced on high springboards, yokes of oxen and up to eight spans of horses dragging logs on skidroad, yokes of oxen and up to eight spans of horses dragging logs on skidroads to flumes, rivers and salt water, early donkey engines, railroads on steep grades, logging camps as well as devastating fires. Andrews' style of writing is graphic and spirited with strong emphasis on human interest.
This volume considers current and future challenges for nature law and policy in Europe. Following the Fitness Check evaluation of the Birds and Habitats Directives, in 2017 the EU adopted an Action Plan for nature, people and the economy to rapidly improve the Directives' implementation and accelerate progress towards the EU's biodiversity targets for 2020. More recently, the EU has adopted a Biodiversity Strategy for 2030 and proposed an EU Nature Restoration Law. This book makes a timely contribution by examining the current state of play in light of recent and historical developments, as well as the post-2020 nature law and policy landscape. While evidence suggests that Natura 2000 and the Habitats and Birds Directives have delivered conservation benefits for wildlife in Europe, biodiversity loss continues apace. The book reviews the requirements for an effective international nature conservation system, with reference to the Birds and Habitats Directives. It examines regulatory regimes, current legal issues in the fields of site protection and species protection, the protection of areas outside Natura 2000, recent developments in the EU and the UK, including the implications of Brexit, agriculture and nature conservation, litigation, science and access to justice. Written by leading experts in the field, from a range of stakeholder groups, the volume draws on diverse experiences as well as providing interdisciplinary perspectives. This volume will be essential reading for students and scholars interested in European environmental policy and law, including lawyers, ecologists, environmental scientists, political scientists, natural resource managers, and planners. It will also be of interest to conservation practitioners, policy-makers and NGOs.
Natural forests with thousands of years of ecological continuity are unrivalled as the treasure store of terrestrial biodiversity on Earth. And while there is currently no fully comprehensive inventory of the biota associated with any given forest, it is reasonable to assume that in conserving natural forests we can conserve the myriads of unnamed bacteria, fungi, insects, mites and nematodes that forests support. Drawing on diverse research from biodiversity experts around the world, this collection of papers reflects the diversity of forest types and forest issues that concern forest scientists globally. Forest types considered vary from savannah and tropical rainforests to the ancient oak forests of Poland; issues explored include the effects of logging, management practices, forest dynamics and climate change on forest structure and biodiversity. Given the range of topics covered, this book should be of particular interest to those involved in teaching forest conservation and management, as well as to researchers requiring an overview of current work in forest diversity, conservation and sustainable management. Reprinted from Biodiversity and Conservation 15: 4 (2006).
The aim of this book is to improve the understanding of forest dynamics and the sustainable management of forest ecosystems. How do tree crowns, trees or entire forest stands respond to thinning in the long term? What effect do tree species mixtures and multi-layering have on the productivity and stability of trees, stands or forest enterprises? How do tree and stand growth respond to stress factors such as climate change or air pollution? Furthermore, in the event that one has acquired knowledge about the effects of thinning, mixture and stress, how can one make that knowledge applicable to decision-making in forestry practice? The experimental designs, analytical methods, general relationships and models for answering questions of this kind are the focus of this book. Given the structures dealt with, which range from plant organs to the tree, stand and enterprise levels, and the processes analysed in a time frame of days or months to decades or even centuries, this book is directed at all readers interested in trees, forest stands and forest ecosystems. This work has been compiled for students, scientists, lecturers, forest planners, forest managers, and consultants.
A compilation of concepts, biological relationships and procedures used to organize forested landscapes for combinations of goods, services and effects. Includes such management processes as investments for biological diversity, timber production, wilderness effects, recreational opportunities, esthetic values and habitats for endangered animals and plants.
This volume is devoted to compiling recent advancements, methodological improvements, new processing techniques, integration methods and rigorous applications associated with conceptual techniques on the conservation and monitoring of forest resources for a scientific audience, with a focus on cases and applications in India. The primary objective of the book is to advance the scientific understanding of the recent trends and technological improvements in forest conservation, management and related research themes in forest resources and human-wildlife interactions. The book is organized into five sections: (I) Forest Conservation Ecology (II) Forest Conservation and Society (III) Forest Management (IV) Forest Monitoring using GIS and Remote Sensing and (V) Human Wildlife Conflicts. It covers various research themes related to forestry, wildlife, habitat fragmentation, forest management and human-wildlife conflict research, and therefore will be beneficial to a diverse range of researchers, scientific organizations, wildlife scientists, biologists, ecologists and planners in the fields of wildlife and forestry. The book will further be of use to post-graduates, PhD research scholars, professors, geospatial experts, modellers, foresters, agricultural scientists, biologists, ecologists, environmental consultants and big data compilers.
The link between modern lifestyles and increasing levels of chronic heart disease, obesity, stress and poor mental health is a concern across the world. The cost of dealing with these conditions places a large burden on national public health budgets so that policymakers are increasingly looking at prevention as a cost-effective alternative to medical treatment. Attention is turning towards interactions between the environment and lifestyles.Exploring the relationships between health, natural environments in general, and forests in particular, this groundbreaking book is the outcome of the European Union 's COST Action E39 Forests, Trees and Human Health and Wellbeing, and draws together work carried out over four years by scientists from 25 countries working in the fields of forestry, health, environment and social sciences. While the focus is primarily on health priorities defined within Europe, this volume explicitly draws also on research from North America.
examines how the Adaptive Collaborative Management approach can be utilised to address global environmental issues by complementing global and national policies with community-based action and commitment. argues that the activation and the empowerment of local peoples is critical to addressing current environmental challenges. provide concrete examples showing how a bottom-up approach can function to enhance policies and development. will be of great interest to students, scholars and practitioners working in the fields of conservation, forest management, community development, natural resource management and development studies more broadly.
This book provides an overview of the complex challenges and opportunities related to forest-based rural development in the tropics and subtropics. Applying a socio-ecological perspective, the book traces the changing paradigms of forestry in rural development throughout history, summarizes the major aspects of the rural development challenge in forest areas and documents innovative approaches in fields such as land utilization, technology and organizational development, rural advisory services, financing mechanisms, participative planning and forest governance. It brings together scholars and practitioners dealing with the topics from various theoretical and practical angles. Calling for an approach that carefully balances market forces with government intervention, the book shows that forests in rural areas have the potential to provide a solid foundation for a green global economy.
A PORTABLE, POCKET EDITION OF THE DEFINITIVE WOOD-CUTTER'S BIBLE - PERFECT FOR FATHER'S DAY "The book has spread like wildfire" Daily Mail "A how-to book with poetry at its heart" T.L.S. "A step-by-step guide to preparing your wood store" Independent Whether you're a seasoned woodcutter, or your passion is yet to be kindled, NORWEGIAN WOOD is a highly informative and entertaining guide for year-round wood management, and the perfect gift. Chopping and stacking wood is a pastime where the world makes sense once more. Because our relationship to fire is so ancient, so universal, it seems that in learning about wood, you can also learn about life. And who better to impart this wisdom than an expert from Scandinavia, where the extreme climate has obliged generations to hone and share their skills with tools, wood and heat production. Lars Mytting has distilled the wisdom of enthusiasts, from experienced lifelong growers, stackers and burners to researchers and professionals of combustion and tree culture. Part guide to the best practice in every aspect of working with this renewable energy source, part meditation on the human instinct for survival, this definitive handbook on the art of chopping, stacking and drying wood in the Scandinavian way has resonated across the world, with more than a million copies sold worldwide. More than 200,000 copies sold in English editions. The book that defined a genre.
Dr Samuel Johnson, that famous eighteenth century lexicographer, said of oats 'A grain which in England is generally given to horses but in Scotland supports the people'. And presumably it was a Scotsman who riposted 'But what people and what horses ' That exchange encapsulates much of the history and role of oats - a cereal, once important as human food in parts of northern Europe but latterly used mainly as animal feed, especially favoured for horses. Although no longer a major food anywhere, oats still have a special and favoured niche in the cuisine of people living in the cooler and wetter regions of some parts of northern Europe. However, there is currently a resurgence of interest in the crop, because there is now considerable scientific evidence to support the view of Scotsmen who never doubted its dietary value. This book - very much an international effort, carefully orchestrated by Robert Welch - traces the origin, history and scientific progress which forms a sound basis for any further crop improvement and for broadening the utilization and marketing of oat products. Should rational consider ations lead to an increase in the importance of this cereal, I, for one, would be glad since I believe the rural landscape is the poorer for the increased rarity of golden fields of rippling oats which I used to be involved in harvesting."
The forests of West Africa are complex, beautiful and under continued threat of over exploitation. This monograph, in its second edition, remains the only comprehensive source of information on economically important forest insects in West Africa. Many pest insects discussed in this book have the potential to greatly alter the utilization of these valuable tropical forests. Several key pests such as mahogany shoot borer, odum gallfly and pests of endangered tree species like Pericopsis, are extensively discussed. This comprehensive treatise of insects includes information on the general forest cover types and insects of utilitarian value. The book will be a great value to foresters, forest entomologists, researchers, conservation biologists and others with a basic biological interest in West African forests.
ing damage ranged from odor. to general visual appearance. Attributes of seedling quality are categorized as either to cutting buds. to scraping bark to detect dead cambium. performance attributes (RGP. frost hardiness. stress resistance) One nursery reported using frost hardiness as an indicator of or material attributes (bud dormancy. water relations. nutrition. when to begin fall lifting. but none reported using it as an morphology). Performance attributes are assessed by placing indicator of seedling quality before shipping stock to customers. samples of seedlings into specified controlled environments and evaluating their responses. Although some effective short 23.4.3 Stress resistance cut procedures are being developed. performance tests tend Only three nurseries measure stress resistance. They use to be time consuming; however, they produce results on whole the services of Oregon State University and the test methods plant responses which are often closely correlated with field described in 23.2.3. One nursery reported that results of stress performance. Material attributes. on the other hand. reflect tests did not agree well with results of RGP tests and that RGP only individual aspects of seedling makeup and are often correlated better with seedling survival in the field. Most stress poorly correlated with performance. tests are conducted for reforestation personnel rather than for Bud dormancy status seems to be correlated. at least nurseries."
In the last half century, because of the raising world population and because of the many environmental issues posed by the industrialization, the amount of arable land per person has declined from 0.32 ha in 1961-1963 to 0.21 ha in 1997-1999 and is expected to drop further to 0.16 ha by 2030 and therefore is a severe menace to food security (FAO 2006). At the same time, about 12 million ha of irrigated land in the developing world has lost its productivity due to waterlogging and salinity. Waterlogging is a major problem for plant cultivation in many regions of the world. The reasons are in part due to climatic change that leads to the increased number of precipitations of great intensity, in part to land degradation. Considering India alone, the total area suffering from waterlogging is estimated to be about 3.3 million ha (Bhattacharya 1992), the major causes of waterlogging include super- ous irrigation supplies, seepage losses from canal, impeded sub-surface drainage, and lack of proper land development. In addition, many irrigated areas are s- jected to yield decline because of waterlogging due to inadequate drainage systems. Worldwide, it has been estimated that at least one-tenth of the irrigated cropland suffers from waterlogging.
The world continues to depend heavily upon a relatively minor range of crops for food, fuel, fibre and industrial use while many potentially good economically acceptable alternatives exist. This book, which is the first in a new series looking at underutilized crops, provides thorough details of those crops which research has suggested may be worthy of further and greater commercial development and exploitation, suggesting potential alternatives to existing widely-exploited crops.
The origin of agroforestry practices-growing trees and shrubs with food and fruit crops and grasses is traditional and very old-but the science of agroforestry is new. Years of experience and experiments have shown that agroforestry as a land-use system is capable of yielding both food and wood and at the same time helps in conserving and rehabilitating the ecosystems. It has the capability to increase the overall productivity of land, maintain the nutrient balance in the soil, and above all, protect the nature. In the recent years, agroforestry has been recommended as a core subject in the curriculum of B. Sc. (Forestry) and B. Sc. (Agriculture) courses of agricultural universities. This book has been divided into ten chapters covering very comprehensive information on all aspects of agroforestry including history, concepts, systems classification, tree-crop interactions, planning and management, diagnosis and design, policy and projects, and propagation and management practices of multipurpose trees. This book is co-published with NIPA. Taylor and Francis does not sell or distribute its print and electronic editions in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.
Many terms often used to describe old-growth forests imply that these forests are less vigorous, less productive and less stable than younger forests. But research in the last two decades has yielded results that challenge the view of old-growth forests being in decline. Given the importance of forests in battling climate change and the fact that old-growth forests are shrinking at a rate of 0.5% per year, these new results have come not a moment too soon. This book is the first ever to focus on the ecosystem functioning of old-growth forests. It is an exhaustive compendium of information that contains original work conducted by the authors. In addition, it is truly global in scope as it studies boreal forests in Canada, temperate old-growth forests in Europe and the Americas, and global tropical forests. Written in part to affect future policy, this eminently readable book is as useful for the scientist and student as it is for the politician and politically-interested layman.
The book offers comprehensive coverage of the important topics including: Flower structure and development Development and structure of male and female gametophytes Pollination biology, Fertilization and Self-incompatibility Endosperm, Embryo and Polyembryony Apomixis and Seed Biology
This collection features five peer-reviewed literature reviews on developing forestry products. The first chapter discusses trade-offs between timber products from plantation forests and the need to protect ecosystem services such as carbon sequestration. It reviews ways of innovating business practices, the use of solid wood, reconstituted products and woody biomass as products. The second chapter explores hardwood tree management within agroforestry systems for the production of veneer and high-quality sawlogs. It reviews how to optimise production in alley cropping, riparian buffers and silvopasture systems. The third chapter assesses the range of non-timber forest products from tropical forests. These include non-wood fiber resources, including bamboo, rattan and agricultural biomass. These can be used to replace traditional wood fibers in both building and non-structural applications. The fourth chapter focusses on new processes and applications of forestry products. It discusses cellulose pulp conversion into cellulosic nanomaterials, hydrolysis of hemicelluloses from wood to produce sugars for use in the food industry, as well as extraction of polyphenols from bark for nutraceuticals. The final chapter reviews alley cropping practices to produce overstory nut crops. It discusses genetic improvement of nut trees, orchard design and management as well as pest management in nut tree alley cropping.
- Provides an up to date and comprehensive introduction to forest policy and governance in the US - Written in an accessible and engaging tone, with a strong emphasis on real-world case studies - Appropriate for undergraduate and postgraduate students on forestry, natural resources and environmental governance courses, as well as professionals working in the forestry industry
provides the first in-depth investigation of how non-timber forest products are an integral part of local, national, and global bioeconomies. reveals how essential these products are to creating a greener and more sustainable future will be of great interest to students and scholars of forest and natural resource management, bioeconomics, circular economy and ecological economics more widely |
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