Physical and Physiological Forest Ecology

Author: Pertti Hari
Publisher: Springer Science & Business Media
ISBN: 9400756038
Format: PDF, ePub, Mobi
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This book introduces a holistic synthesis of carbon and nitrogen fluxes in forest ecosystems from cell to stand level during the lifetime of trees. Establishing that metabolism and physical phenomena give rise to concentration, pressure and temperature differences that generate the material and energy fluxes between living organisms and their environment. The editors and authors utilize physiological, physical and anatomical background information to formulate theoretical ideas dealing with the effects of the environment and the state of enzymes, membrane pumps and pigments on metabolism. The emergent properties play an important role in the transitions from detailed to more aggregate levels in the ecosystem. Conservation of mass and energy allow the construction of dynamic models of carbon and nitrogen fluxes and pools at various levels in the hierarchy of forest ecosystems.

Applications of Physiological Ecology to Forest Management

Author: J. J. Landsberg
Publisher: Elsevier
ISBN: 9780080527383
Format: PDF, Mobi
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Forest management is a complex process that now incorporates information obtained from many sources. It is increasingly obvious that the physiological status of the trees in a forest has a dramatic impact on the likely success of any particular management strategy. Indeed, models described in this book that deal with forest productivity and sustainability require physiological information. This information can only be obtained from an understanding of the basic biological mechanisms and processes that contribute to individual tree growth. This valuable book illustrates that physiological ecology is a fundamental element of proficient forest management. Provides essential information relevant to the continuing debate over sustainable forest management Outlines how modern tools for physiological ecology can be used in planning and managing forest ecosystems Reviews the most commonly used forest models and assesses their value and future

Forest Ecology

Author: Arnold van der Valk
Publisher: Springer Science & Business Media
ISBN: 9048127955
Format: PDF, Kindle
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This volume provides an overview of recent advances in forest ecology on a variety of topics, including species diversity and the factors that control species diversity, environmental factors controlling distribution of forests, impacts of disturbances on forests (fires, drought, hurricane), reproduction ecology of both trees and understory species, and spatial organization of forests. Previously published in Plant Ecology, Volume 201, No.1, 2009.

Poplars and Willows

Author: Jud G. Isebrands
Publisher: CABI
ISBN: 1780641087
Format: PDF, Mobi
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Poplars and willows form an important component of forestry and agricultural systems, providing a wide range of wood and non-wood products. This book synthesizes research on poplars and willows, providing a practical worldwide overview and guide to their basic characteristics, cultivation and use, issues, problems and trends. Prominence is given to environmental benefits and the importance of poplar and willow cultivation in meeting the needs of people and communities, sustainable livelihoods, land use and development.

Modelling Radioactivity in the Environment

Author: E.M. Scott
Publisher: Elsevier
ISBN: 9780080536651
Format: PDF, ePub
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Just as an environmental model typically will be composed of a number of linked sub-models, representing physical, chemical or biological processes understood to varying degrees, this volume includes a series of linked chapters exemplifying the fundamental nature of environmental radioactivity models in all compartments of the environment. Why is a book on modelling environmental radioactivity necessary? There are many reasons why such a boook is necessary, perhaps the most important that: - modelling is an often misunderstood and maligned activity and this book can provide, to a broad audience, a greater understanding of modelling power but also some of the limitations. - modellers and experimentalists often do not understand and mistrust each other's work yet they are mutually dependent, in the sense that good experimental science can direct good modelling work and vice-versa; we hope that this book can dispel mistrust and engender improved understanding. - there is an increasing reliance on model results in environmental management, yet there is also often misuse and misrepresentation of these results. This book can help to bridge the gap between unrealistic expectations of model power and the realisation of what is possible, practicable and feasible in modelling of environmental radioactivity; and finally, - modelling tools, capacity and power have increased many-fold in a relatively short period of time. Much of this is due to the much-heralded computer revolution, but much is also due to better science. It is useful to consider what gap if any still remains between what is possible and what is necessary.

Physiological Ecology of Forest Production

Author: J. J. Landsberg
Publisher: Academic Press
ISBN: 9780080922546
Format: PDF, ePub
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Process-based models open the way to useful predictions of the future growth rate of forests and provide a means of assessing the probable effects of variations in climate and management on forest productivity. As such they have the potential to overcome the limitations of conventional forest growth and yield models, which are based on mensuration data and assume that climate and atmospheric CO2 concentrations will be the same in the future as they are now. This book discusses the basic physiological processes that determine the growth of plants, the way they are affected by environmental factors and how we can improve processes that are well-understood such as growth from leaf to stand level and productivity. A theme that runs through the book is integration to show a clear relationship between photosynthesis, respiration, plant nutrient requirements, transpiration, water relations and other factors affecting plant growth that are often looked at separately. This integrated approach will provide the most comprehensive source for process-based modelling, which is valuable to ecologists, plant physiologists, forest planners and environmental scientists. Includes explanations of inherently mathematical models, aided by the use of graphs and diagrams illustrating causal interactions and by examples implemented as Excel spreadsheets Uses a process-based model as a framework for explaining the mechanisms underlying plant growth Integrated approach provides a clear and relatively simple treatment

Trends in European Forest Tree Physiology Research

Author: Satu Huttunen
Publisher: Springer Science & Business Media
ISBN: 9781402000232
Format: PDF, ePub, Mobi
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This publication presents an overview of the current interests in tree physiology research within the European tree physiology EUROSILVA network, which has been going on since 1986. The last phase, entitled COST Action E 6: EUROSILVA Forest Tree Physiology Research, was accomplished during the period from 1996 to 2000. The scientific discussions in the three working groups (I: Tree growth and development, II: Tree nutrition and water relations, III: Biotic and abiotic interactions in trees) have touched on a diverse collection of topics. The articles in this book have been written by well-known European and American scientists and focus on basic tree physiology and trees and their environments. The book will provide to the reader information of the EUROSILVA network's activities and recent findings. Some important future aspects are also discussed.