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Cottonwood And The River Of Time

Author: Reinhard F. Stettler
Publisher: University of Washington Press
ISBN: 0295800194
Size: 76.82 MB
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Cottonwood and the River of Time looks at some of the approaches scientists have used to unravel the puzzles of the natural world. With a lifetime of work in forestry and genetics to guide him, Reinhard Stettler celebrates both what has been learned and what still remains a mystery as he examines not only cottonwoods but also trees more generally, their evolution, and their relationship to society. Cottonwoods flourish on the verge, near streams and rivers. Their life cycle is closely attuned to the river's natural dynamics. An ever-changing floodplain keeps generating new opportunities for these pioneers to settle and prepare the ground for new species. Perpetual change is the story of cottonwoods -- but in a broader sense, the story of all trees and all kinds of life. Through the long parade of generation after generation, as rivers meander and glaciers advance and retreat, trees have adapted and persisted, some for thousands of years. How do they do this? And more urgently, what lessons can we learn from the study of trees to preserve and manage our forests for an uncertain future? In his search for answers, Stettler moves from the floodplain of a West Cascade river, where seedlings compete for a foothold, to mountain slopes, where aspens reveal their genetic differences in colorful displays; from the workshops of Renaissance artists who painted their masterpieces on poplar to labs where geneticists have recently succeeded in sequencing a cottonwood's genome; from the intensively cultivated tree plantations along the Columbia to old-growth forests challenged by global warming. Natural selection and adaptation, the comparable advantages and disadvantages of sexual versus asexual reproduction, the history of plant domestication, and the purposes, risks, and potential benefits of genetic engineering are a few of the many chapters in this story. By offering lessons in how nature works, as well as how science can help us understand it, Cottonwood and the River of Time illuminates connections between the physical, biological, and social worlds.

Functional Importance Of The Plant Microbiome

Author: Sharon Lafferty Doty
Publisher: Springer
ISBN: 3319658972
Size: 45.97 MB
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This book addresses all the major mechanisms by which endophytes are thought to impact plant growth and health. A unique aspect of this publication is that it is multidisciplinary, covering plant microbiology, plant physiology, fungal and bacterial endophytes, plant biochemistry, and genomics. Just as research on the mammalian microbiome has demonstrated its importance for overall health of the host, the plant microbiota is essential for plant health in natural environments. Endophytes, the microorganisms living fully within plants, can provide a multitude of benefits to the host including N-fixation, P solubilization, increased photosynthetic efficiency and water use efficiency, stress tolerance, pathogen resistance, and overall increased growth and health. A variety of culturable endophytes have been isolated and shown to be mutualistic symbionts with a broad range of plant species. These studies point to the functional importance of the microbiota of plants and suggest the potential for tailoring plant microbiota for improved vigor and yields with reduced inputs. This review covers the major benefits of microbial endophytes to plants and discusses the implications of using symbiosis as an alternative to chemical inputs for agriculture, forestry, and bioenergy.

The Cabi Encyclopedia Of Forest Trees

Author: CABI
Publisher: CABI
ISBN: 1780642369
Size: 53.42 MB
Format: PDF, Kindle
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The CABI Encyclopedia of Forest Trees provides an extensive overview of 300 of the world's most important forest trees. Tropical, subtropical, temperate and boreal trees of major economic importance are included, covering tree species used in agroforestry practices around the world. Many of the species covered are considered to be multipurpose trees with uses extending beyond timber alone; the land uses such as watershed protection or provision of windbreaks, and non-wood uses such as the production of medicines, resins, food and forage, are also listed. Comprehensive information is presented on each tree's importance, with a summary of the main characteristics of the species, its potential for agroforestry use and any disadvantages it possesses. The tree's botanical features such as habit, stem form, foliage, inflorescence, flower and fruit characters and phenology are covered in detail with over 70 color plate pictures to aid identification. Also included are specific sections devoted to pests and diseases, distribution and silvicultural characteristics and practices, including seed sowing, nursery care, planting, thinning, and harvesting. In addition to the wealth of information detailed, based on datasheets from CABI's Forestry Compendium, selected references for further reading are provided for each entry, making this book an essential reference work for forestry students, researchers and practitioners.

The Cottonwood Tree

Author: Kathleen Cain
Publisher: Big Earth Publishing
ISBN: 9781555663704
Size: 35.92 MB
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And so poet and naturalist Kathleen Cain fell in love with the cottonwood tree. Regarded by many as a nuisance, a "trash tree," the cottonwood not only has a fascinating history, it has served noble purposes as well. Ranging from Vermont to Arizona to Alaska, this native North American tree, in various sizes, shapes, and subspecies, has been a sacred symbol, a shelter providing relief from both heat and cold, a signpost for the lost and weary-and underneath its branches many dreams have been born.

Poplars And Willows

Author: Jud G. Isebrands
Publisher: CABI
ISBN: 1780641087
Size: 29.28 MB
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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.

Ceramics

Author: Philip Rawson
Publisher: University of Pennsylvania Press
ISBN: 0812207343
Size: 22.58 MB
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"It is rare to find a book on art that presents complex aesthetic principles in clear readable form. Ceramics, by Philip Rawson, is such a book. I discovered it ten years ago, and today my well-worn copy has scarcely a page on which some statement is not underlined and starred."—Wayne Higby, from the Foreword

The Natural History Of Puget Sound Country

Author: Arthur R. Kruckeberg
Publisher: University of Washington Press
ISBN: 9780295974774
Size: 18.22 MB
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Winner of the Pacific Northwest Booksellers Award Bounded on the east by the crest of the Cascade Range and on the west by the lofty east flank of the Olympic Mountains, Puget Sound terrain includes every imaginable topograhic variety. This thoughtful and eloquent natural history of the Puget Sound region begins with a discussion of how the ice ages and vulcanism shaped the land and then examines the natural attributes of the region--flora and fauna, climate, special habitats, life histories of key organisms--as they pertain to the functioning ecosystem. Mankind's effects upon the natural environment are a pervasive theme of the book. Kruckeberg looks at both positive and negative aspects of human interaction with nature in the Puget basin. By probing the interconnectedness of all natural aspects of one region, Kruckeberg illustrates ecological principles at work and gives us a basis for wise decision-making. The Natural History of Puget Sound Country is a comprehensive reference, invaluable for all citizens of the Northwest, as well as for conservationists, biologists, foresters, fisheries and wildlife personnel, urban planners, and environmental consultants everywhere. Lavishly illustrated with over three hundred photographs and drawings, it is much more than a beautiful book. It is a guide to our future.

River Flowing From The Sunrise

Author: James M Aton
Publisher: University Press of Colorado
ISBN: 0874213975
Size: 35.96 MB
Format: PDF
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The authors recount twelve millennia of history along the lower San Juan River, much of it the story of mostly unsuccessful human attempts to make a living from the river's arid and fickle environment. From the Anasazi to government dam builders, from Navajo to Mormon herders and farmers, from scientific explorers to busted miners, the San Juan has attracted more attention and fueled more hopes than such a remote, unpromising, and muddy stream would seem to merit.