Genetic Variation In A Provenance Test Of 16 Year Old Ponderosa Pine Classic Reprint
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| Author | : G. E. Rehfeldt |
| Publisher | : Forgotten Books |
| Total Pages | : 20 |
| Release | : 2018-02-26 |
| Genre | : Business & Economics |
| ISBN | : 9780243977789 |
Excerpt from Genetic Variation in a Provenance Test of 16-Year-Old Ponderosa Pine Hence, the Washington Creek plantation contained two replicates. The Crane Creek Plantation was not replicated except for one provenance. After the trees were 16 years old, the following data were obtained for trees undamaged by snow, porcupines, insects, and cattle: 16 and 11-year heights, diameter at the ground, and number of branches in the upper two whorls. At Crane Creek, a systematic sample of 67 to 75 trees for each provenance was taken so that observations were available from entire plots. Because of high mortality and snow damage at the Washington Creek site, only 12 to 73 trees were measured for each provenance. Percentages of mortality and trees damaged by snow were estimated for each plot at Washington Creek. Snow damage included major bends in the stem, grotesquely deformed stems and branches, and broken tops. There was virtually no snow damage at Crane Creek, and mortality was minimal. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
| Author | : Matteo Garbelotto |
| Publisher | : MDPI |
| Total Pages | : 243 |
| Release | : 2018-04-13 |
| Genre | : Science |
| ISBN | : 3038426717 |
This book is a printed edition of the Special Issue "Forest Pathology and Plant Health" that was published in Forests
| Author | : James H. Speer |
| Publisher | : University of Arizona Press |
| Total Pages | : 360 |
| Release | : 2021-11-30 |
| Genre | : Social Science |
| ISBN | : 0816547386 |
Tree-ring dating (dendrochronology) is a method of scientific dating based on the analysis of tree-ring growth patterns. As author James Speer notes, trees are remarkable bioindicators. Although there are other scientific means of dating climatic and environmental events, dendrochronology provides the most reliable of all paleorecords. Dendrochronology can be applied to very old trees to provide long-term records of past temperature, rainfall, fire, insect outbreaks, landslides, hurricanes, and ice storms--to name only a few events. This comprehensive text addresses all of the subjects that a reader who is new to the field will need to know and will be a welcome reference for practitioners at all levels. It includes a history of the discipline, biological and ecological background, principles of the field, basic scientific information on the structure and growth of trees, the complete range of dendrochronology methods, and a full description of each of the relevant subdisciplines. Individual chapters address the composition of wood, methods of field and laboratory study, dendroarchaeology, dendroclimatology, dendroecology, dendrogeomorphology, and dendrochemistry. The book also provides thorough introductions to common computer programs and methods of statistical analysis. In the final chapter, the author describes "frontiers in dendrochronology," with an eye toward future directions in the field. He concludes with several useful appendixes, including a listing of tree and shrub species that have been used successfully by dendrochronologists. Throughout, photographs and illustrations visually represent the state of knowledge in the field.
| Author | : Donald J. Mead |
| Publisher | : Food & Agriculture Organization of the UN (FAO) |
| Total Pages | : 0 |
| Release | : 2013 |
| Genre | : Forest management |
| ISBN | : 9789251076347 |
"Pinus radiata (radiata pine) is a versatile, fast-growing, medium-density softwood, suitable for a wide range of end-uses. Its silviculture is highly developed, and is built on a rm foundation of over a century of research, observation and practice. Radiata pine is often considered a model for growers of other plantation species. This book explores current knowledge of, and experience with radiata pine forest plantation management and examines its long-term sustainability. Radiata pine management needs to integrate the biological aspects of tree-growing, with socio-economics, management objectives, practical considerations and other constraints and opportunities. Although stands of radiata pine may appear to be simple, they are actually quite complex ecosystems because they contain large, long-lived trees that change dramatically over time and interact in changing ways with the environment and with other organisms. The focus of this book is on the principles and practices of growing radiata pine sustainably. It also looks ahead to emerging challenges facing radiata pine plantation management, such as the effects of climate change, new diseases and other threats, and meeting changing product needs and societal demands."--Page 4 of cover.
| Author | : A. Stokes |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 411 |
| Release | : 2013-04-17 |
| Genre | : Science |
| ISBN | : 9401734690 |
This publication comprises the proceedings of the first International Conference devoted to the structural roots of trees and woody plants. 'The Supporting Roots - Structure and Function,' 20-24 July 1998, Bordeaux, France. The meeting was held under the auspices ofIUFRO WPS 2. 01. 13 'Root Physiology and Symbiosis,' and its aim was to bring together scientific researchers, foresters and arboriculturalists, to discuss current problems in structural root research and disseminate knowledge to an audience from a wide disciplinary background. For the first time in an international conference, emphasis was placed on presenting recent reseach in the field of tree anchorage mechanics and root biomechanics. The way in which tree stability can be affected by root system symmetry and architecture was addressed, as well as how movement during wind sway can influence the development and shape of woody roots. The role of different nursery and planting techniques was discussed, in relation to effects on root system form and development. Root response to different environmental stresses, including water, temperature, nutrient and mechanical stress was addressed in detail. The structure and function of woody roots was also considered at different levels, from coarse to fine roots, with several papers discussing the interaction between roots and the rhizosphere. One of the conference highlights was the presentation of new methods in root research, by a series of workshops held at LRBB-INRA, Pierroton, on the northern border of the Gascony forest.
| Author | : Roberto Rodríguez |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 425 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 1468457608 |
For many, the terms aging, maturation and senescence are synonymous and used interchangeably, but they should not be. Whereas senescence represents an endogenously controlled degenerative programme leading to plant or organ death, genetiC aging encompasses a wide array of passive degenerative genetiC processes driven primarily by exogenous factors (Leopold, 1975). Aging is therefore considered a consequence of genetiC lesions that accumulate over time, but by themselves do not necessarily cause death. These lesions are probably made more severe by the increase in size and complexity in trees and their attendant physiology. Thus while the withering of flower petals following pollination can be considered senescence, the loss of viability of stored seeds more clearly represents aging (Norden, 1988). The very recent book "Senescence and Aging in Plants" does not discuss trees, the most dominant group of plants on the earth. Yet both angiospermic and gymnospermic trees also undergo the above phenomena but less is known about them. Do woody plants senesce or do they just age? What is phase change? Is this synonymous with maturation? While it is now becoming recognized that there is no programmed senescence in trees, senescence of their parts, even in gymnosperms (e. g. , needles of temperate conifers las t an average of 3. 5 years), is common; but aging is a readily acknowledged phenomenon. In theory, at least, in the absence of any programmed senescence trees should -live forever, but in practice they do not.
| Author | : |
| Publisher | : |
| Total Pages | : 402 |
| Release | : 2004 |
| Genre | : Electronic books |
| ISBN | : |
"Southern forests provide innumerable benefits. Forest scientists, managers, owners, and users have in common the desire to improve the condition of these forests and the ecosystems they support. A first step is to understand the contributions science has made and continues to make to the care and management of forests. This book represents a celebration of past accomplishments, summarizes the current state of knowledge, and creates a vision for the future of southern forestry research and management. Chapters are organized into seven sections: "Looking Back," "Productivity," "Forest Health," "Water and Soils," "Socioeconomic," "Biodiversity," and "Climate Change." Each section is preceded by a brief introductory chapter. Authors were encouraged to focus on the most important aspects of their topics; citations are included to guide readers to further information."
| Author | : International Union of Forestry Research Organizations. Division I--Site and Silviculture |
| Publisher | : |
| Total Pages | : 604 |
| Release | : 1979 |
| Genre | : Afforestation |
| ISBN | : |
| Author | : James Aronson |
| Publisher | : Island Press |
| Total Pages | : 400 |
| Release | : 2012-09-26 |
| Genre | : Nature |
| ISBN | : 1597267791 |
How can environmental degradation be stopped? How can it be reversed? And how can the damage already done be repaired? The authors of this volume argue that a two-pronged approach is needed: reducing demand for ecosystem goods and services and better management of them, coupled with an increase in supply through environmental restoration. Restoring Natural Capital brings together economists and ecologists, theoreticians, practitioners, policy makers, and scientists from the developed and developing worlds to consider the costs and benefits of repairing ecosystem goods and services in natural and socioecological systems. It examines the business and practice of restoring natural capital, and seeks to establish common ground between economists and ecologists with respect to the restoration of degraded ecosystems and landscapes and the still broader task of restoring natural capital. The book focuses on developing strategies that can achieve the best outcomes in the shortest amount of time as it: • considers conceptual and theoretical issues from both an economic and ecological perspective • examines specific strategies to foster the restoration of natural capital and offers a synthesis and a vision of the way forward Nineteen case studies from around the world illustrate challenges and achievements in setting targets, refining approaches to finding and implementing restoration projects, and using restoration of natural capital as an economic opportunity. Throughout, contributors make the case that the restoration of natural capital requires close collaboration among scientists from across disciplines as well as local people, and when successfully executed represents a practical, realistic, and essential tool for achieving lasting sustainable development.
| Author | : |
| Publisher | : |
| Total Pages | : 198 |
| Release | : 1989 |
| Genre | : Forest nurseries |
| ISBN | : |
