TREE OF AGES

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Tree Of Ages

Author : Sara C Roethle
ISBN :
Genre : Young Adult Fiction
File Size : 45.41 MB
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"The seasons are changing. The lines are faltering, undoing the old and bringing life to the new. Trees will fall, and changed earth will be left in their place. A storm is coming." Finn doesn't remember much about her previous life, and in a world that has been changed by the wars of the Tuatha De, where trust is hard to come by, answers are even more difficult to find. Epic legends of fantasy are beginning to re-emerge, including the leaders of the Faie and other Faieries. Little does Finn know, an unknown evil tugs on the strings of fate, and the answers she so desperately seeks may be more important than she could have ever imagined. Topics: Epic Fantasy, Celtic Mythology, Fae, Fey, Fairies, Medieval Fantasy, Quest, Mystery, Magic, Lore, Sorceress, Druid, Wizard, Conjurer, Mercenary, Assassin, Thief, Fantasy Series, Pirates.
Category: Young Adult Fiction

Methods Of Dendrochronology

Author : E.R. Cook
ISBN : 0792305868
Genre : Science
File Size : 43.78 MB
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This book is a review and description of the state-of-the-art methods of tree-ring analy~is with specific emphasis on applications in the environmental sciences. Traditionally, methods of tree-ring analysis, or more properly in this case methods 0/ dendrochronology, were developed and used for dating archaeological and historical structures and for reconstructing past climates. The classic book Tree Rings and Climate, by H.C. Fritts, published in 1976, provided a superb introduction to the science and an in-depth description of techniques useful for extracting climatic information from tree rings. This book, which was published by Academic Press, is sadly out of print and, even though only 12 years old, lim ited in its methods and applications. This is owing to the extremely rapid development of the science since the 1970s. Only recently have tree rings as environmental sensors been fully recog nized as a valuable tool in detecting environmental change. For example, tree ring measurements have been critically important in studies of forest decline in Europe and North America. There are also attempts to use tree-ring analysis for ecological prognosis to solve large-scale regional problems including the sustain ability of water supplies, prediction of agricultural crops, and adoption of silvi cultural measures in response to ecological changes. More speculatively, dendro chronological methods are also used for dating and evaluating some astrophysical phenomena and for indicating possible increase in the biospheric carrying capac ity due to increased atmospheric carbon dioxide.
Category: Science

Genes Fossils And Behaviour

Author : Peter Donnelly
ISBN : 9051994494
Genre : Science
File Size : 29.81 MB
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The September 1998 NATO Advanced Study Institute brought together contributors reflecting the multi-disciplinary nature of research into human origins and tackling the integration of such fields as genetics, archaeology, mathematical modelling, paleoecology, and paleoanthropology. Among the topics discussed in 13 contributions: genetic variances within and between human groups; HLA polymorphism; detecting ancient admixture; primate biology and behavior as a template for human evolution; and the anthropological, demographic, and ecological context of human evolutionary genetics. Annotation copyrighted by Book News, Inc., Portland, OR
Category: Science

Size And Age Related Changes In Tree Structure And Function

Author : Frederick C. Meinzer
ISBN : 9400712421
Genre : Nature
File Size : 78.15 MB
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Millions of trees live and grow all around us, and we all recognize the vital role they play in the world’s ecosystems. Publicity campaigns exhort us to plant yet more. Yet until recently comparatively little was known about the root causes of the physical changes that attend their growth. Since trees typically increase in size by three to four orders of magnitude in their journey to maturity, this gap in our knowledge has been a crucial issue to address. Here at last is a synthesis of the current state of our knowledge about both the causes and consequences of ontogenetic changes in key features of tree structure and function. During their ontogeny, trees undergo numerous changes in their physiological function, the structure and mechanical properties of their wood, and overall architecture and allometry. This book examines the central interplay between these changes and tree size and age. It also explores the impact these changes can have, at the level of the individual tree, on the emerging characteristics of forest ecosystems at various stages of their development. The analysis offers an explanation for the importance of discriminating between the varied physical properties arising from the nexus of size and age, as well as highlighting the implications these ontogenetic changes have for commercial forestry and climate change. This important and timely summation of our knowledge base in this area, written by highly respected researchers, will be of huge interest, not only to researchers, but also to forest managers and silviculturists.
Category: Nature

Hawthorn

Author : Bill Vaughn
ISBN : 9780300213751
Genre : Science
File Size : 83.96 MB
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One of humankind’s oldest companions, the hawthorn tree, is bound up in the memories of every recorded age and the plot lines of cultures all across the Northern Hemisphere. Hawthorn examines the little-recognized political, cultural, and natural history of this ancient spiky plant. Used for thousands of years in the impenetrable living fences that defined the landscapes of Europe, the hawthorn eventually helped feed the class antagonism that led to widespread social upheaval. In the American Midwest, hawthorn-inspired hedges on the prairies made nineteenth-century farming economically rewarding for the first time. Later, in Normandy, mazelike hedgerows bristling with these thorns nearly cost the Allies World War II. Bill Vaughn shines light on the full scope of the tree’s influence over human events. He also explores medicinal uses of the hawthorn, the use of its fruit in the world’s first wine, and the symbolic role its spikes and flowers played in pagan beliefs and Christian iconography. As entertaining as it is illuminating, this book is the first full appreciation of the hawthorn’s abundant connections with humanity.
Category: Science

The Ecology And Silviculture Of Oaks

Author : Paul S. Johnson
ISBN : 9781845934750
Genre : Science
File Size : 43.50 MB
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The management of oak forests is essential to the ecosystems of many countries, and current trends in managing forests are based on sustaining desired ecosystems, rather than timber and other commodity outputs. By considering oak forests as responsive ecosystems, this updated new edition draws on the authors' extensive experience in order to examine topics essential to understanding the unique characteristics of oaks and oak forests, covering distribution, ecology and population dynamics, and silvicultural practices for multi-resource management such as creating and sustaining oak savannas, and increasing and measuring acorn production. With new information on carbon sequestration, biofuel production, impacts of climate change, and sudden oak death - a serious and newly discovered pathogen - the book will be essential reading for ecologists, silviculturists, environmentalists, wildlife managers and students in these disciplines.
Category: Science

Tree Rings And Climate

Author : H Fritts
ISBN : 9780323145282
Genre : Science
File Size : 25.47 MB
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Tree Rings and Climate deals with the principles of dendrochronology, with emphasis on tree-ring studies involving climate-related problems. This book looks at the spatial and temporal variations in tree-ring growth and how they can be used to reconstruct past climate. Factors and conditions that appear most relevant to tree-ring research are highlighted. Comprised of nine chapters, this book opens with an overview of the basic biological facts and principles of tree growth, as well as the most important terms, principles, and concepts of dendrochronology. The discussion then shifts to the basic biology governing the response of ring width to variation in climate; systematic variations in the width and cell structure of annual tree rings; and the significance of tree growth and structure to dendroclimatology. The movement of materials and internal water relations of trees are also considered, along with photosynthesis, respiration, and the climatic and environmental system. Models of the growth-climate relationships as well as the basic statistics and methods of analysis of these relationships are described. The final chapter includes a general discussion of dendroclimatographic data and presents examples of statistical models that are useful for reconstructing spatial variations in climate. This monograph will be of interest to climatologists, college students, and practitioners in fields such as botany, archaeology, hydrology, oceanography, biology, physiology, forestry, and geophysics.
Category: Science