Download or read book A Model and Experimental Data on Changes in Plant Community Structure During a Growing Season written by J. Ares and published by . This book was released on 1975 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plants and Climate Change written by Jelte Rozema and published by Springer Science & Business Media. This book was released on 2007-01-19 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on how climate affects or affected the biosphere and vice versa both in the present and in the past. The chapters describe how ecosystems from the Antarctic and Arctic, and from other latitudes, respond to global climate change. The papers highlight plant responses to atmospheric CO2 increase, to global warming and to increased ultraviolet-B radiation as a result of stratospheric ozone depletion.
Download or read book Perspectives in Grassland Ecology written by N.R. French and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a result of the summary and synthesis of data collected in the Grassland Biome Program, which is part of the American contribution to the International Biological Program (IBP). The purpose of this volume is to present a summary of quantitative ecological investigations of North American grass lands and to present a set of broad comparisons of their characteristics and functions as well as the results of some models and experiments that lead to practical considerations of the management of grasslands. Synthesis is a continuing activity in science. Early in the Grassland Biome Program there was a synthesis of literature data on grasslands, edited by R. L. Dix and R. G. Beidleman (1969). Results of the first year of field data collection under this program were synthesized in a volume edited by N. R. French (1971). Development of the large-scale model constructed to depict the processes and the dynamics of state variables in grassland ecosystems was presented by Innis (1978). Soon to appear will be two volumes integrating studies of American grasslands with IBP studies in other grasslands of the world (Coupland, in press) and the application of systems analysis to understanding grassland function and utilization (Breymeyer and Van Dyne, in press). The present volume presents current results and comparisons of field investigations and experimental studies that were conducted under this program.
Download or read book Carbon Dioxide Populations and Communities written by Fakhri A. Bazzaz and published by Elsevier. This book was released on 1996-07-17 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: In past decades and in association with a continuing global industrial development, the global atmospheric concentration of carbon dioxide has been rising. Among the many predictions made concerning this disturbing trend is global warming sufficient to melt polar ice-caps thereby dramatically altering existing shorelines. This book will help fill an obvious gap in the carbon dioxide debate by substituting date for speculation. * * Includes contributions from leading authorities around the world * Serves as a companion to Carbon Dioxide and Terrestrial Ecosystems * The first book of its kind to explore evolutionary responses of both populations and communities to elevated carbon dioxide
Download or read book Hierarchical Modelling for the Environmental Sciences written by James S. Clark and published by OUP Oxford. This book was released on 2006-05-04 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: New statistical tools are changing the ways in which scientists analyze and interpret data and models. Many of these are emerging as a result of the wide availability of inexpensive, high speed computational power. In particular, hierarchical Bayes and Markov Chain Monte Carlo methods for analysis provide consistent framework for inference and prediction where information is heterogeneous and uncertain, processes are complex, and responses depend on scale. Nowhere are these methods more promising than in the environmental sciences. Models have developed rapidly, and there is now a requirement for a clear exposition of the methodology through to application for a range of environmental challenges.
Download or read book The Nature of Plant Communities written by J. Bastow Wilson and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review of the role of species interactions in the process of plant community assembly.
Download or read book Old field Community Response to Multiple Interacting Factors of Global Change written by Elizabeth Cayenne Engel and published by . This book was released on 2005 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communities are structured by many factors including abiotic factors such as resource availability, and biotic interactions. Climatic and atmospheric change will affect the composition of plant communities through multiple interacting biotic and abiotic factors. Literature on the effects of single factors on plant communities is abundant yet there have been few experiments examining the effects of multiple abiotic factors associated with climate change. Moreover, plant communities are not controlled solely by environmental conditions, but by biotic interactions such as competition and facilitation. In this thesis, I used a field experiment to examine the effects of elevated [CO2], warming, and soil moisture on in-situ old-field plant communities (Chapter 2). In addition, I conducted a separate field experiment to examine the competitive relationships among the constituent species to test whether an experimentally derived competitive hierarchy can predict relative abundances of species within plant communities (Chapter 3). I examined plant community responses to treatments of elevated [CO2] (+300 ppm), warming (+3 degrees C), and soil moisture availability applied to experimental plots within open-top chambers at Oak Ridge National Laboratory. In 2002, we constructed plots with plant communities consisting of seven common old-field species, including grasses, forbs, and legumes. Beginning in 2003, we tracked foliar cover, density and recruitment, and reproductive phenology for each plant species, and determined changes in community diversity and evenness over the course of two growing seasons. We observed few interactive effects of treatments on plant abundance. Most of the observed plant responses to treatments were responses to single factors. Species-specific foliar cover was most strongly influenced by warming: warming reduced foliar cover of Trifolium pratense and Dactylis glomerata, but increased foliar cover of Andropogon virginicus and Solidgao canadensis. Foliar cover of Dactylis glomerata was lower in dry plots than in wet plots. During the second full growing season, plant species diversity, evenness, and richness were at least 10% lower in wet plots, where total foliar cover and dominance were greater than in dry plots. Interactive effects of treatments appeared only toward the end of the second growing season. For example, late in the growing season of 2004, cover of Dactylis was four times greater within wet plots under ambient temperatures than in all other treatment combinations (temperature x water interaction; P less than 0.02).
Download or read book Effects of nitrogen deposition on ecosystems above and belowground written by Hui Wang and published by Frontiers Media SA. This book was released on 2023-03-09 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Protection Research Catalog written by Smithsonian Science Information Exchange and published by . This book was released on 1972 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings Shrubland Ecosystem Dynamics in a Changing Environment written by Jerry R. Barrow and published by . This book was released on 1996 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains 50 papers including an overview of shrubland ecosystem dynamics in a changing environment and several papers each on vegetation dynamics, management concerns and options, and plant ecophysiology as well as an account of a Jornada Basin field trip. Contributions emphasize the impact of changing environmental conditions on vegetative composition especially in the Jornada Basin and Chihuahuan Desert but also in other parts of western North America and the world.
Download or read book General Technical Report INT written by and published by . This book was released on 1981 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Major Douglas fir Habitat Types of Central Idaho written by Robert Wilbur Steele and published by . This book was released on 1995 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns functions and processes of alpine grassland ecosystems under global change written by Jian Sun and published by Frontiers Media SA. This book was released on 2023-08-01 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IV Conferencia Mundial de Produccion Animal Trabajos invitados simposio sanidad animal written by and published by . This book was released on 1980 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Fire in Forest Restoration written by Society for Ecological Restoration. Conference and published by . This book was released on 1996 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Effects of Conservation Practices on Grazing Lands written by and published by . This book was released on 2006 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of the World s Biomes written by and published by Elsevier. This book was released on 2020-06-26 with total page 3542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of the World’s Biomes is a unique, five volume reference that provides a global synthesis of biomes, including the latest science. All of the book's chapters follow a common thematic order that spans biodiversity importance, principal anthropogenic stressors and trends, changing climatic conditions, and conservation strategies for maintaining biomes in an increasingly human-dominated world. This work is a one-stop shop that gives users access to up-to-date, informative articles that go deeper in content than any currently available publication. Offers students and researchers a one-stop shop for information currently only available in scattered or non-technical sources Authored and edited by top scientists in the field Concisely written to guide the reader though the topic Includes meaningful illustrations and suggests further reading for those needing more specific information
