الصفحة 1
الصفحة 1
Nutrient Cycling in Terrestrial Ecosystems
The first part of the book presents the fundamentals of nutrient cycling. Topics included are cycling of carbon, nitrogen, phosphorus, sulphur and micronutrients. The second part discusses nutrient cycling at an ecosystem scale, covering cropping systems, pastures, natural grasslands, arid lands, tundras and forests. The final chapter reviews current models of nutrient cycling.
Mycorrhizae : Sustainable Agriculture and Forestry
This book discusses and goes into detail on a number of topics: the molecular basis of nutrient exchange between arbuscular mycorrhizal (AM) fungi and host plants; the role of AM fungi in disease protection, alleviation of soil stresses and increasing grain production; interactions of AM fungi and beneficial saprophytic mycoflora in terms of plant growth promotion; the role of AM fungi in the restoration of native ecosystems; indirect contributions of AM fungi and soil aggregation to plant growth and mycorrhizosphere effect of multitrophic interaction; the mechanisms by which mycorrhizas change a disturbed ecosystem into productive land; the importance of reinstallation of mycorrhizal systems in the rhizosphere is emphasized and their impact on landscape regeneration, and in bioremediation of contaminated soils; Ectomycorrhizae (ECM) and their importance in forest ecosystems and associations of ECM in tropical rain forests function to maintain tropical monodominance; in vitro mycorrhization of micro-propagated plants, and visualizing and quantifying endorhizal fungi; the use of mycorrhizae, mainly AM and ECM, for sustainable agriculture and forestry.
Methods to study litter decomposition : A practical guide
Decomposition of organic matter is a major ecosystem process involving an array of different organisms, including bacteria, fungi and invertebrates. The main objective of this book is to provide students and laboratory instructors at universities and professional ecologists with a broad range of established methods to study plant litter decomposition. Detailed protocols for direct use in the field or laboratory are presented in an easy to follow step-by-step format. A short introduction to each protocol reviews the ecological significance and principles of the technique and points to key references. Although most methods are described for freshwater ecosystems, many will work equally well in the presented or slightly modified form for studies in marine and terrestrial environments.
Invasive Species in Forests and Rangelands of the United States : A Comprehensive Science Synthesis for the United States Forest Sector
This book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade.
Invasive forest insects, introduced forest trees, and altered ecosystems : Ecological pest management in global forests of a changing world
Demand for timber and fibre continues to grow and is being met by increased reliance on plantation forestry. Many of the plantations that are being grown around the globe are non-native species that have characteristics of rapid growth and good commercial qualities. In some cases, the high rates of production are a result of the absence of native herbivore and diseases. This limited pest status is threatened as pest species move around the globe. At the same time there is concern about threats of these non-native plantation species on native communities and the impact of changing climates on forest productivity. This volume explores many of these issues for the first time.
Introduction to Machine Learning with Applications in Information Security
Provides a classroom-tested introduction to a wide variety of machine learning and deep learning algorithms and techniques, reinforced via realistic applications. The book is accessible and doesn't prove theorems, or dwell on mathematical theory. The goal is to present topics at an intuitive level, with just enough detail to clarify the underlying concepts. The book covers core classic machine learning topics in depth, including Hidden Markov Models (HMM), Support Vector Machines (SVM), and clustering. Additional machine learning topics include k-Nearest Neighbor (k-NN), boosting, Random Forests, and Linear Discriminant Analysis (LDA). The fundamental deep learning topics of backpropagation, Convolutional Neural Networks (CNN), Multilayer Perceptrons (MLP), and Recurrent Neural Networks (RNN) are covered in depth. A broad range of advanced deep learning architectures are also presented, including Long Short-Term Memory (LSTM), Generative Adversarial Networks (GAN), Extreme Learning Machines (ELM), Residual Networks (ResNet), Deep Belief Networks (DBN), Bidirectional Encoder Representations from Transformers (BERT), and Word2Vec.
Harvesting Operations in the Tropics
The book brings together information on harvest methods, system productivity, and methods for conducting safe, efficient, and environmentally acceptable operations in tropical forests. It highlights the challenges of harvest operations in the tropics, includes techniques that have been shown to be successful, and discusses newer technologies.
Growth Dynamics of Conifer Tree Rings : Images of Past and Future Environments
Each tree ring contains an image of the time when the ring formed, projected onto the ring's size, structure, and composition. Tree rings thus are natural archives of past environments, and contain records of past climate. While dendrochronologists have investigated the impact of climate on tree-ring growth by empirical–statistical methods, this volume presents a process-based model complementing previous approaches. Basic ideas concerning the biology of tree-ring growth and its control by environmental factors are treated, especially for conifers. The use of the model is illustrated by means of several examples from widely differing environments, and possible future directions for model development and application are discussed. The volume provides an improved mechanistic basis for the interpretation of tree rings as records of past climate. It advances process understanding of the large-scale environmental control of wood growth. As forests are the main carbon sink on land, the results are of great importance for all global change studies.
Growing Plantation Forests
Plantation forests are grown to supply wood and to provide environmental benefits, such as waste disposal, rehabilitation of degraded sites, enhancement of regional biodiversity and reduction of logging in native forests. In a highly readable fashion, this book describes the scientific principles which are used throughout the world to ensure rapid, healthy plantation growth. It is written for a world-wide audience, from forestry professionals and scientists through to small plantation growers, to describe how plantations may be grown responsibly and profitably.
Forest Road Operations in the Tropics
This book brings together information on road planning, location, design, construction and maintenance to support environmentally acceptable operations in tropical forests. It highlights the challenges of road operations in the tropics, includes techniques that have been shown to be successful, and discusses newer technologies. It is intended as a reference book for the forest engineer and others interested in the planning and management of tropical forests. Numerical examples are provided to provide clarity for interpreting graphs, procedures, and formulas. The book covers the various facets of road management from design objectives through practices to control environmental impacts.
Forest Restoration in Landscapes
This book integrates the restoration of forest functions into landscape conservation plans. and this book represents the collective body of knowledge and experience of WWF and its many partners--which is collected here for the first time and which will be invaluable to all of those working in the field. This guide will serve as a first stop for practitioners and researchers in any organization or region and as a key reference on the subject. Along with concise, practical information for a variety of specific systems and issues, it gives many suggestions for further research.
Forest Radioecology in Fukushima : Radiocesium Dynamics, Impact, and Future
This book provides holistic information on the radioactive contamination of forests. Topics are highly interdisciplinary, ranging from the dynamics of radioactive cesium in forest ecosystems to the radiation protection or the socio-economic aspects of radiation effects. It is designed to help people understand the radioactive contamination in forests and provide hints of how to cope with it and restore their livelihoods. The book is characterized by its well-balanced structure that allows the reader to understand the whole picture without going into too much scientific content. After explaining the basics of radioactive materials and radiation, the book illustrates the radioactive contamination of forests, it also describes the impacts on the forestry and life of local people and the measures taken by. Few books address the concerns about how to deal with radioactive contamination of forests and the future perspectives. In this book, people can learn all about the Fukushima nuclear accident of forests, forest products, and people with abundant reference materials.
Forest Policy Analysis
This book gives an introduction in the methodology of social sciences. It is a guideline for all those who are interested in the use and protection of the forest. It shows how to identifying political options for solving issues of the forest. The book builds a bridge between the problems concerning forests to the political process.
Forest Mensuration
Van Laar and Akça’s popular text book, Forest Mensuration, was first published in 1997. Like that first edition, this modern update is based on extensive research, teaching and practical experience in both Europe, and the tropics and subtropics. However, it has also been extensively revised, and now includes chapters on remote sensing and the application of aerial photographs and satellite imagery. As with its predecessor, this book assumes no advanced knowledge of statistical methods, and combines practical techniques with important historical and disciplinary context. The result is a strong balance between a handbook on traditional mensuration methods, and a valuable reference on the many recent research and inventory-related innovations which have emerged in recent years.
Forest Entomology in West Tropical Africa : Forests Insects of Ghana
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 Africa forests.
Forest Entomology in East Africa : Forest Insects of Tanzania
East African forests, among the world’s most biologically rich and diverse, are subject to multiple pressures, including insects. As the first work to focus exclusively on East African forest insects, this monograph distils 135 years of scientific and historical literature extending from before the colonial era to the present into an authoritative survey of this region’s major pests of trees and wood, as well as their antagonists. This comprehensive treatise also addresses insects of social and economic importance, such as endemics, edible and collectible insects, wild bees and silk producers. It should be of great value to foresters, entomologists, conservation biologists, resource managers, safari outfitters and anyone else interested in the natural history of this fascinating region.
Forest Diversity and Management
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.
Forest Diversity and Function : Temperate and Boreal Systems
One of the central research themes in ecology is evaluating the extent to which biological richness is necessary to sustain the Earth's system and the functioning of individual ecosystems. In this volume, for the first time, the relationship between biodiversity and ecosystem processes in forests is thoroughly explored. The text examines the multiple effects of tree diversity on productivity and growth, biogeochemical cycles, animals, pests, and disturbances.
Extreme Conflict and Tropical Forests
At a time when the international community is devoting significant attention to the issue of governance as a key factor in global environmental decline, this book provides a timely insight into the relationships between extreme conflict, the international trade in forest products, and the social, economic and environmental condition of tropical forests and their human communities. Drawing on the expertise of both natural and social scientists, Extreme Conflict and Tropical Forests explores the underlying causes and the social and environmental consequences of conflict in tropical forest areas. Case studies from Africa, Asia and Latin America present a range of issues – from illicit crops and ‘conflict timber’ production, to the potential of peace parks for improving human security, social quality and biodiversity conservation.
Economics, Sustainability, and Natural Resources: Economics of Sustainable Forest Management
The economics of sustainability is much more complex than the neoclassical (Newtonian) economic approach to economic efficiency. Forest resources provide the ideal starting point for the economic analysis of sustainability. This book provides a systematic critique of neoclassical economic approaches and their limitations with respect to sustainability. Leading economists from different streams of economics discuss key economic aspects of sustainability and sustainable forest management including complexity, ethical issues, consumer choice theory, intergenerational equity, non-convexities, and multiple equilibria. This is the book which integrates different streams of economics – complexity theory, behavioral economics, post-Keynesian consumer choice theory, social choice theory, and non-convexities – and suggests the main features of Post-Newtonian economics.
