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Books > Professional & Technical > Agriculture & farming > Forestry & silviculture: practice & techniques
This book takes a multi-disciplinary and critical look at what has changed over the last ten years in one of the world's most important and dynamic ecosystems, the Amazon floodplain or varzea. It also looks forward, assessing the trends that will determine the fate of environments and people of the varzea over the next ten years and providing crucial information that is needed to formulate strategies for confronting these looming realities.
This text has been developed from a workshop on "Technological Change in Agriculture and Tropical Deforestation" organized by the Center for International Forestry Research and held in Costa Rica in March, 1999. It explores how intesification of agriculture affects tropical deforestation using case studies from different geographical regions, using different agricultural products and technologies and in differing demographic situations and market demographic situations and market conditions. Guidance is also given on future agricultural research and extension efforts.
Tropical rain forests are increasingly expected to serve for climate change mitigation and biodiversity conservation amid global climate change and increasing human demands for land. Natural production forests that are legally designated to produce timber occur widely in the Southeast Asian tropics. Synergizing timber production, climate change mitigation and biodiversity conservation in such tropical production forests is one of the most realistic means to resolve these contemporary global problems. Next-generation sustainable forest management is being practiced in the natural tropical rain forest of a model site in Sabah, Malaysian Borneo, while earlier sustainable management practices have generally failed, leading to extensive deforestation and forest degradation elsewhere in the tropics. Ecologists have examined co-benefits of sustainable forestry in the model forest in terms of forest regeneration, carbon sequestration and biodiversity in comparison to a forest managed by destructive conventional methods. Taxonomic groups studied have included trees, decomposers, soil microbes, insects and mammals. A wide array of field methods and technology has been used including count plots, sensor cameras, and satellite remote-sensing. This book is a compilation of the results of those thorough ecological investigations and elucidates ecological processes of tropical rain forests after logging. The book furnishes useful information for foresters and conservation NGOs, and it also provides baseline information for biologists and ecologists. A further aim is to examine the environmental effects of a forest certification scheme as the model forest has been certified by the Forest Stewardship Council. Taken as a whole, this book proves that the desired synergy is possible.
Small woods, coppices and hangers are an integral part of the countryside and landscape. This practical guide to the management and conservation of woods up to ten hectares offers information on buying and selling woods, contact addresses, and a glossary of terms.
This textbook provides students and academics with a conceptual understanding of fire behavior and fire effects on people and ecosystems to support effective integrated fire management. Through case studies, interactive spreadsheets programmed with equations and graphics, and clear explanations, the book provides undergraduate, graduate, and professional readers with a straightforward learning path. The authors draw from years of experience in successfully teaching fundamental concepts and applications, synthesizing cutting-edge science, and applying lessons learned from fire practitioners. We discuss fire as part of environmental and human health. Our process-based, comprehensive, and quantitative approach encompasses combustion and heat transfer, and fire effects on people, plants, soils, and animals in forest, grassland, and woodland ecosystems from around the Earth. Case studies and examples link fundamental concepts to local, landscape, and global fire implications, including social-ecological systems. Globally, fire science and integrated fire management have made major strides in the last few decades. Society faces numerous fire-related challenges, including the increasing occurrence of large fires that threaten people and property, smoke that poses a health hazard, and lengthening fire seasons worldwide. Fires are useful to suppress fires, conserve wildlife and habitat, enhance livestock grazing, manage fuels, and in ecological restoration. Understanding fire science is critical to forecasting the implication of global change for fires and their effects. Increasing the positive effects of fire (fuels reduction, enhanced habitat for many plants and animals, ecosystem services increased) while reducing the negative impacts of fires (loss of human lives, smoke and carbon emissions that threaten health, etc.) is part of making fires good servants rather than bad masters.
"Methods and Approaches in Forest History" is a companion to "Forest History: International Studies on Socioeconomic and Forest Ecosystem Change," which includes over 20 papers from the same conference held in Florence in 1998. This volume focuses on the different approaches and methods adopted in the study of forest history. The interdisciplinary nature of these studies is emphasized, bringing in the different perspectives of anthropologists, botanists, ecologists, foresters, historians, geneticists and geographers. This volume demonstrates the rich diversity of approaches and methods to forest history.
This book examines the importance of air pollution for the forests of rapidly industrializing countries and regions. Its geographical coverage includes South and Central America, Africa, and Asia, including Siberia, China and Korea. The problems presented by air pollution are placed within the more general context of sustainable development within these regions and the historical legacy that they are attempting to deal with. Attention is drwan to the very serious problems associated with poor air quality in cities such as Mexico City and Chongqing, China. Air pollution in these areas is among the worst in the world. Several chapters examine the importance of forest fires as a source of air pollution, with particular reference to the Southeast Asian fires in recent years. The available information about the effects of this pollution on the surrounding forests is reviewed, and recommendations are made for a better understanding of the impacts. A final chapter reviews the recent developments in air pollution control policies in the different regions covered by the book. It is of interest to postgraduates and researchers in forestry, pollution studies and environmental science.
The introduction of chain saws and tractors in the early 1950's marked the beginning of a change in tree harvesting techniques from the old manual methods to mechanized operations. It was followed by a rapid evolution both technically and systematically. Hence, the requirements for improved know ledge of operational efficiency also increased. Changing relations between Man, machines and environment brought about new experiences and awareness of a physiological and ergonomic nature. Improved knowledge of both machine technology and planning of work on a small or large scale has grown increa singly important for an efficient utilization of expensive machines and other equipment. The need for a textbook on tree harvesting techniques including expe riences made in recent years is enhanced. The book presented here is prima rily based on lectures given on the subject of Forest Techniques at the Faculty of Forestry at the Swedish University of Agricultural Sciences and after modifications also at the University of Nairobi (Kenya). Thus, the book is written primarily for students at the faculties and institutes of forestry. However, it is also useful for persons actively occupied in forest operations. The presentation of this book in its original Swedish version in 1972 created a considerable interest in the preparation of a condensed edition in English. Thus interest has been expressed in Finland, Norway, Holland, Canada, U.S.A., Brazil, Japan, Poland, Scotland and Yugoslavia."
Micropropagation has become a reliable and routine approach for large-scale rapid plant multiplication, which is based on plant cell, tissue and organ culture on well defined tissue culture media under aseptic conditions. A lot of research efforts are being made to develop and refine micropropagation methods and culture media for large-scale plant multiplication of several number of plant species. However, many forest and fruit tree species still remain recalcitrant to in vitro culture and require highly specific culture conditions for plant growth and development. The recent challenges on plant cell cycle regulation and the presented potential molecular mechanisms of recalcitrance are providing excellent background for understanding on totipotency and what is more development of micropropagation protocols. For large-scale in vitro plant production the important attributes are the quality, cost effectiveness, maintenance of genetic fidelity, and long-term storage. The need for appropriate in vitro plant regeneration methods for woody plants, including both forest and fruit trees, is still overwhelming in order to overcome problems facing micropropagation such as somaclonal variation, recalcitrant rooting, hyperhydricity, polyphenols, loss of material during hardening and quality of plant material. Moreover, micropropagation may be utilized, in basic research, in production of virus-free planting material, cryopreservation of endangered and elite woody species, applications in tree breeding and reforestation.
The management of common pool resources and publicly-owned areas is fraught with difficulty. This book explores the long, complex, and frequently contentious history of public lands management in the United States in order to draw lessons for the emerging field of marine spatial planning (MSP). The author first establishes that these two seemingly different settings are in fact remarkably similar, drawing on established theories of policy analysis. The work then examines the management of US National Forests over the past 120 years, including three place-based case studies, to discover recurring themes. The analysis shows how different management approaches evolved over time in response to changing laws and cultural norms, producing outcomes favored by different constituencies. This history also reveals the ambiguities and contradictions inherent in multiple-use management of any public space. Next, the book analyzes recent efforts to advance MSP, both in the US and globally, showing how they mirror past experiences in National Forest management, including similar disagreements among stakeholders. In conclusion the author suggests how those within ocean-related sectors - government, academia, industry, and environmental groups - might achieve their individual and collective goals more effectively based on lessons from the public lands setting.
This book provides up-to-date information on the environmental impact of transgenic trees on genetically modified tree (GMT) communication strategy. It is useful to public/private organisations as well as to private and public research bodies and universities worldwide since it reports on the global status of GMT research and policy. A high number of genetically modified trees (GMTs) with altered or novel characteristics have been produced in the last 15 years. However, their very low public acceptance is a basic problem in their commercialization. Breeders anticipate economic and ecological benefits, like reduced product costs and less pressure on native forests, while opponents fear risks, such as unintended spread of GMTs. But what is true? To answer this question, the COST Action FP0905 focused on key aspects related to GMTs: (a) biological characterization; (b) assessment of possible environmental impacts; (c) socio-economic implications and public acceptance/concerns; (d) providing science-based information to communicate with the public.
Landscapes are being degraded and simplified across the globe. This book explores how forest restoration might be carried out to increase landscape heterogeneity, improve ecological functioning and restore ecosystem services in such landscapes. It focuses on large, landscape-scale reforestation because that is the scale at which restoration is needed if many of the problems that have now developed are to be addressed. It also shows how large-scale forest restoration might improve human livelihoods as well as improve conservation outcomes. A number of governments have undertaken national reforestation programs in recent years; some have been more successful than others. The author reviews these to explore what type of reforestation should be used, where this should be carried out and how much should be done. For example, are the traditional industrial forms of reforestation necessarily the best to use in all situations? How can forest restoration be reconciled with the need for food security? And, are there spatial thresholds that must be exceeded to generate economic and environmental benefits? The book also examines the policy and institutional settings needed to encourage large-scale reforestation. This includes a discussion of the place for incentives to encourage landholders to undertake particular types of reforestation and to reforest particular locations. It also considers forms of governance that are likely to lead to an equitable sharing of the costs and benefits of forest restoration.
An important prerequisite for successful conservation is a good understanding of what we seek to conserve. Nowhere is this more the case than in the fight to protect plant biodiversity, which is threatened by human activity in many regions worldwide. This book is written in the belief that tools that enable more people to understand biodiversity can not only aid protection efforts but also contribute to rural livelihoods. Among the most important of those tools is the field guide. Plant Identification provides potential authors of field guides with practical advice about all aspects of producing user-friendly guides which help to identify plants for the purposes of conservation, sustainable use, participatory monitoring or greater appreciation of biodiversity. The book draws on both scientific and participatory processes, supported by the experience of contributors from across the tropics. It presents a core process for producing a field guide, setting out key steps, options and techniques available to the authors of a guide and, through illustration, helps authors choose methods and media appropriate to their context.
Globally rainforests are under threat on numerous fronts, including clearing for agriculture, harvesting for timber and urban expansion. Yet they have a crucial role in biodiversity conservation, climate change mitigation and providing other ecosystem services. As the term is used in this book, rainforests include both temperate and tropical, although the emphasis is on tropical rainforests. Rainforests are also attractive tourist spaces and where they have been used as a tourism resource have generated significant income for local communities. However not all use of rainforests as a tourism resource has been sustainable. This book argues that sustainability must be the foundation on which tourism use of this complex but ultimately fragile ecosystem must be built upon. It provides a multi-disciplinary perspective, incorporating rainforest science, management and tourism issues. The book is organized into four sections commencing with Rainforest Ecology and Management followed by People and Rainforests, Opportunities for Rainforest Tourism Development and finally Threats to Rainforests. Each major rainforest region is covered, including the Amazon, Central America, Africa, Australia and south-east Asia, in the context of a specific issue. For example rainforests in Papua New Guinea are examined in the context of community-based ecotourism development, while the rainforests in Borneo are discussed in an examination of wildlife issues. Other issues covered in this manner include governance, empowerment issues for rainforest peoples and climate change.
This book explores microbial symbiosis, with a particular focus on soil microorganisms, highlighting their application in enhancing plant growth and yield. It addresses various types of bacterial and fungal microbes associated with symbiotic phenomena, including rhizobium symbiosis, arbuscular mycorrhizal symbiosis, ectomycorrhizal symbiosis, algal/lichen symbiosis, and Archeal symbiosis. Presenting strategies for employing a diverse range of bacterial and fungal symbioses in nutrient fortification, adaptation of plants in contaminated soils, and mitigating pathogenesis, it investigates ways of integrating diverse approaches to increase crop production under the current conventional agroecosystem. Providing insights into microbial symbioses and the challenges of adopting a plant-microbe synergistic approach towards plant health, this book is a valuable resource for researchers, graduate students and anyone in industry working on bio-fertilizers and their agricultural applications.
Written by leading authorities from Australasia, Europe and North America, this book examines the dynamic conflicts and synergies between nature conservation and human development in contemporary Cambodia. After suffering conflict and stagnation in the late twentieth century, Cambodia has experienced an economic transformation in the last decade, with growth averaging almost ten per cent per year, partly through investment from China. However this rush for development has been coupled with tremendous social and environmental change which, although positive in some aspects, has led to rising inequality and profound shifts in the condition, ownership and management of natural resources. High deforestation rates, declining fish stocks, biodiversity loss, and alienation of indigenous and rural people from their land and traditional livelihoods are now matters of increasing local and international concern. The book explores the social and political dimensions of these environmental changes in Cambodia, and of efforts to intervene in and 'improve' current trajectories for conservation and development. It provides a compelling analysis of the connections between nature, state and society, pointing to the key role of grassroots and non-state actors in shaping Cambodia's frontiers of change. These insights will be of great interest to scholars of Southeast Asia and environment-development issues in general.
The loss of biodiversity is a major environmental problem in nearly every terrestrial ecosystem on Earth. This loss is accelerating driven by climate change, as well as by other causes including agricultural exploitation, fragmentation and degradation triggered by land use changes. The crucial issue under debate is the impact on the welfare of current and future population, and the role of humans in the exploitation of natural resources. This is of particular importance in Central America, which it is amongst the richest and most threatened biodiversity regions on the Earth, and where the loss of ecosystems strongly affects its socio-economic vulnerability. This book addresses the impacts of climate and land-use change on tropical forest ecosystems in this important region, and assesses the expected economic costs if no policy action is taken, under different future scenarios and for different geographical scales. This innovative collection utilises both theoretical approaches and empirical results to provide a conceptual framework for an integrated analysis of climate and land-use change impacts on forest ecosystems and related economic effects, offering insight into the complex relationship between ecosystems and benefits to humans. This important contribution to forest ecosystems and climate change provides invaluable reading for students and scholars in the fields of environmental and ecological economics, environmental science and forestry, natural resource management, agriculture and climate change.
This title includes a number of Open Access chapters. This new research compendium focuses on urban forestry research and management, while also considering the sociological and community aspects. The book looks at the benefits of urban forests with respect to urban sustainability and human health; issues related to expanding the urban tree canopy; managing urban forests in a community context; and improving our understanding of urban forests through research and practice.
Changes in production, demand, supply, and trade patterns; the impact of green building and bioenergy on industry practices and policy infrastructure; and new economies with production advantages and large consumption bases all present challenges and opportunities in the forest sector. With contributions from leading experts in academia and professional organizations, The Global Forest Sector: Changes, Practices, and Prospects fills a gap in the literature that is preventing students, scholars, and policy makers from developing a timely, structured, big-picture view of forest sector business. In addition, the book reviews current thinking on a wide variety of business management issues in the forest sector. The book covers managing change in the global forest sector and the impact of globalization on forest users. It discusses markets and market forces, new products and product categories, and the influence of China and Russia. The book then examines the environmental paradigm, including environmental activism, sustainability, and the impact of green building and bioenergy. The book concludes with coverage of the role of information technology, corporate social responsibility, innovation, and next steps. Overall, this book helps readers both develop a bird's eye view of the changes surrounding the forest sector as well as have a magnified view of numerous managerial issues associated with these changes. The content paints a picture of the current and changing forest sector including the state of forests, the nature of markets, the newly emerged patterns of stakeholder impact, and evolution of key business practices. It provides the foundation needed to develop the conservation-based economy required for future success in the global forest sector.
This title aims to provide introductory and concluding surveys of the subject of farms, trees and farmers. Two central parts explore trends in farmer tree-growing and the factors which influence decision-making. Eight case studies cover, among other topics, the need for tree products, market access, the allocation of land and labour, and exposure to risk. In showing why farmers decide to grow or not grow trees, it seeks to increase the reader's knowledge about farming systems and to provide a guide to encouraging farm forestry throughout the world.
Complete with information on buying and selling woods, useful contact addresses and a glossary of terms, Caring for Small Woods will prove the indispensable handbook.
Since its original publication by the International Institute for Environment and Development in 1999, Policy That Works for Forests and People has been recognised as the most authoritative study to date of policy processes that affect forests and people. Providing a thorough analysis of the issues, options and factors that determine different outcomes and bolstered by a major annex containing tools and tactics, the book offers clear and practical advice on how to formulate, manage and implement policies appropriate to different contexts. These are policies that result in real improvements in the governance, use and economic benefits that can flow from forests to those who depend upon them. This book is essential reading for policy-makers, forestry practitioners and academics and students in all areas of forest policy, management and governance.
In 1944 Lady Park Wood (45 hectares of woodland in Gloucestershire and Monmouthshire, UK) was set aside indefinitely by the Forestry Commission so that ecologists could study how woodland develops naturally. Since then, in a unique long-term study, individual trees and shrubs have been recorded at intervals, accumulating a detailed record of more than 20,000 individual beech, sessile oak, ash, wych elm, small-leaved lime, large-leaved lime, birch, hazel, yew and other species. In the seven decades since the study started, the wood has changed; trees grew, died and regenerated, and drought, disease and other events shaped its destiny. Each tree and shrub species reacted in its own way to changes in the wood as a whole and to changes in the fortunes of its neighbours. Meanwhile, the wild fauna, flora and fungi also responded, leaving the wood richer in some groups but poorer in others. In this landmark book, beautifully illustrated throughout, George Peterken and Edward Mountford, summarise the ongoing results of the Lady Park Wood study, highlighting its unique place in nature conservation and its significance to ecology in general. It also builds on experience at Lady Park Wood and elsewhere to discuss in particular: the role and maintenance of long-term ecological studies; the concept and form of natural woodland; the role of minimum-intervention policies in woodland nature conservation; near-to-nature forestry; and the desirability and practicalities of re-wilding woodlands.
Projecting modest future growth for both prices and harvest levels, this study, first published in 1990, provides theoretical and empirical justification for challenging the conventional wisdom that real timber prices will rise for the indefinite future. The study presents fifty-year projections of regional and world harvest levels, world market price, and investments in forest regeneration by region. This book will be of particular interest to students of economics and environmental studies.
Forests provide a large range of beneficial services, including tangible ones such as timber and recreation, and intangible services such as climate regulation, biodiversity, and watershed protection. On the other hand, forests can also be considered roadblocks to progress that occupy space more productively used for agriculture, making consideration of their regulating services crucial for balancing land use and forest loss. Monitoring forest cover and loss is critical for obtaining the data necessary to help define what is needed to maintain the varying forest service requirements in different parts of the world. There is an increasing need for timely and accurate forest change information, and consequently a greater interest in monitoring those changes. Global Forest Monitoring from Earth Observation covers the very recent developments undertaken for monitoring forest areas from global to national levels using Earth observation satellite data. It describes operational tools and systems for monitoring forest ecosystems, discussing why and how researchers currently use remotely sensed data to study forest cover and loss over large areas. The book introduces the role of forests in providing ecosystem services and the need for monitoring their change over time, followed by an overview of the use of earth observation data to support forest monitoring. It discusses general methodological differences, including wall-to-wall mapping and sampling approaches, as well as data availability. This book provides excellent coverage of the research and applications of forest monitoring, indicator mapping at coarse spatial resolution, sample-based assessments, and wall-to-wall mapping at medium spatial resolution using optical remote sensing datasets, such as MODIS and Landsat. It examines the use of radar imagery in forest monitoring and presents a number of operational systems, from Brazil's PRODES and DETER products to Australia's NCAS system. Written by leading global experts in the field, this book offers a launch point for future advances in satellite-based monitoring of global forest resources. It gives readers a deeper understanding of global forest monitoring methods and shows how state-of-the-art technologies may soon provide key data for creating more balanced policies. |
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