Download or read book Control of Depth to Permafrost and Soil Temperature by the Forest Floor in Black Spruce feathermoss Communities written by C. T. Dyrness and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in depth to permafrost and soil temperature were investigated for 4 years after treatment of the forest floor on small plots by fire and mechanical removal of half the forest floor layer and the entire layer. Study site was in the Yukon-Tanana Uplands about 45 km north of Fairbanks.
Download or read book Control of Depth to Permafrost and Soil Temperature by the Forest Floor in Black Spruce Feathermoss Communities Classic Reprint written by C. T. Dyrness and published by Forgotten Books. This book was released on 2018-09-09 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Control of Depth to Permafrost and Soil Temperature by the Forest Floor in Black Spruce/Feathermoss Communities Figure 1. - Elevations of the surfaces of the organic layers and permafrost in the control plot in block 1. 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.
Download or read book Control of Depth to Permafrost and Soil Temperature by the Forest Floor in Black Spruce feathermoss Communities written by C. T. Dyrness and published by . This book was released on 1982 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost Ecosystems written by Akira Osawa and published by Springer Science & Business Media. This book was released on 2010-01-04 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing from a decade-long collaboration between Japan and Russia, this important volume presents the first major synthesis of current knowledge on the ecophysiology of the coniferous forests growing on permafrost at high latitudes. It presents ecological data for a region long inaccessible to most scientists, and raises important questions about the global carbon balance as these systems are affected by the changing climate. Making up around 20% of the entire boreal forests of the northern hemisphere, these ‘permafrost forest ecosystems’ are subject to particular constraints in terms of temperature, nutrient availability, and root space, creating exceptional ecosystem characteristics not known elsewhere. This authoritative text explores their diversity, structure, dynamics and physiology. It provides a comparison of these forests in relation to boreal forests elsewhere, and concludes with an assessment of the potential responses of this unique biome to climate change. The book will be invaluable to advanced students and researchers interested in boreal vegetation, forest ecology, silviculture and forest soils, as well as to researchers into climate change and the global carbon balance.
Download or read book Soil Temperature Effects on Carbon Exchange in Taiga Species of Interior Alaska written by William Thomas Jr Lawrence and published by . This book was released on 1983 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost written by and published by . This book was released on 1947 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: First prepared by U.S. Geological Survey, and issued as U.S. Army. Office of the Chief of Engineers, Strategic Engineering Study no. 62, 1943, second printing, with corrections, 1945; reprint of second printing, 1947.
Download or read book Soil Temperature Effects on Carbon Exchange in Taiga Species of Interior Alaska written by William Thomas Lawrence (Jr.) and published by . This book was released on 1983 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Forest Succession written by D. C. West and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Succession-nothing in plant, community, or ecosystem ecology has been so elaborated by terminology, so much reviewed, and yet so much the center of controversy. In a general sense, every ecologist uses the concept in teaching and research, but no two ecologists seem to have a unified concept of the details of succession. The word was used by Thoreau to describe, from a naturalist's point of view, the general changes observed during the transition of an old field to a forest. As data accumulated, a lengthy taxonomy of succession developed around early twentieth century ecologists such as Cooper, Clements, and Gleason. Now, nearer the end of the century, and after much discussion concerning the nature of vegetation communities, where do ecologists stand with respect to knowledge of ecological succession? The intent of this book is not to rehash classic philosophies of succession that have emerged through the past several decades of study, but to provide a forum for ecologists to present their current research and present-day interpretation of data. To this end, we brought together a group of scientists currently studying terrestrial plant succession, who represent research experience in a broad spectrum of different ecosystem types. The results of that meeting led to this book, which presents to the reader a unique summary of contemporary research on forest succession.
Download or read book Physiological Ecology of North American Plant Communities written by Brain F. Chabot and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although, as W.D. Billings notes in his chapter in this book. the development of physiological ecology can be traced back to the very beginnings of the study of ecology it is clear that the modern development of this field in North America is due in the large part to the efforts of Billings alone. The foundation that Billings laid in the late 1950s came from his own studies on deserts and subsequently arctic and alpine plants, and also from his enormous success in instilling enthusiasm for the field in the numerous students attracted to the plant ecology program at Duke University. Billings' own studies provided the model for subsequent work in this field. Physiological techniques. normally confined to the laboratory. were brought into the field to examine processes under natural environmental conditions. These field studies were accompanied by experiments under controlled conditions where the relative impact of various factors could be assessed and further where genetic as opposed to environmental influences could be separated. This blending of field and laboratory approaches promoted the design of experiments which were of direct relevance to understanding the distribution and abundance of plants in nature. Physiological mechanisms were studied and assessed in the context of the functioning of plants under natural conditions rather than as an end in itself.
Download or read book Natural Regions and Subregions of Alberta written by David J. Downing and published by . This book was released on 2006-01-01 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents the climatic, physiographic, vegetation, soil, wildlife and land use attributes that characterize each natural region and subregion. It has been organized into four parts: part one outlines national region and subregion concepts, part two describes methods used to generate climate statistics, part three presents a comparative analysis of selected climate statistics to facilitate comparison of natural regions and subregions, and part four presents detailed climatic, vegetation, soils and physiographic descriptions for six natural regions and twenty-one natural subregions currently recognized in Alberta.
Download or read book Permafrost written by T. Neil Davis and published by . This book was released on 2001 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for a broad audience, this book is suitable for the science-minded layman and motivated students; it belongs in the library of anyone with more than a passing interest in the colder regions of the world. Students, permafrost specialists, and professionals in earth and environmental sciences will find most of the necessary and detailed mathematical material contained in the appendices, where it is accessible but not alarming to the less technically minded."--BOOK JACKET.
Download or read book Biogeography written by Glen MacDonald and published by John Wiley & Sons. This book was released on 2002-02-28 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrative examples from recent research publications and "classic" studies are prominently featured throughout the book. Research techniques are highlighted in "special interest" boxes. Illustrations and descriptions of research techniques are provided with examples such as fire-scars from trees used to reconstruct disturbance, fossil pollen used to reconstruct vegetation change and plant migration, transect and quadrate sampling. Includes key biogeographical theories that link space and time to the distribution of life. Some of these theories include: 1. Ranges, Reflicts, Refuges, Corridors, Barriers, 2. Centers of Origins, 3. Cladistics, 4. Variance, 5. Island BioGeography, 6. Diversity Theory, 7. Gap Analysis for Conservation.
Download or read book Heavy Metals and Other Pollutants in the Environment written by Gennady E. Zaikov and published by CRC Press. This book was released on 2017-07-20 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important new volume presents a plethora of research on the distribution of heavy metals in soils and rocks of natural habitats, farmlands, and urbanized areas along with the factors influencing their bioavailability. The authors evaluate the content of organic matter, soil acidity, mineral fertilizers, and more. Developed for ecologists and specialists in the field of environmental protection and the conservation of biological diversity, the book presents the problems of reducing the anthropogenic load on the surrounding countryside and focuses on sustainable agricultural development.
Download or read book Field Guide to the Ecosites of Saskatchewan s Provincial Forests written by M. S. McLaughlan and published by . This book was released on 2010-01-01 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The forest ecosystems of Saskatchewan are represented at the site level with 81 ecosites that span Saskatchewan's four ecozones: Taiga Shield, Boreal Shield, Boreal Plain and Prairie. Field sampling provided the raw data upon which the ecosite classification was built. Nearly 1700 semi-permanent relevés were established in 69 of the province's 80 forested ecodistricts. Each relevé provided information about the cover-abundance and growth form of each plant encountered, forest mensuration data, and soil and site characteristics. The ecosite classification provides summaries of the site attributes for each ecosite within the four ecozones; it also illustrates the relationship among the ecosites, within an ecozone, through a two-way matrix of moisture and species richness values. This ecosystem classification facilitates better integration of forest management disciplines by providing a common ecosystem language that forms an explicit operational framework for resource managers. Brief descriptions and ecological interpretations are also provided for each ecosite and usually include significant features and/or a statement about the possible successional trajectory for the ecosite in the absence and presence of disturbance."--Document.
Download or read book Alaska s Forests Wildlife written by and published by . This book was released on 1995 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Organic Matter Fluorescence written by Paula G. Coble and published by Cambridge University Press. This book was released on 2014-07-14 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: A core text on principles, laboratory/field methodologies, and data interpretation for fluorescence applications in aquatic science, for advanced students and researchers.
Download or read book Trail of Story Traveller s Path written by Leslie Main Johnson and published by Athabasca University Press. This book was released on 2010 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This sensitive examination of the meanings of landscape draws on the author's rich experience with diverse enviornments and peoples: the Gitksan and Witsuwit'en of norwestern British Columbia, the Kaska Dena of the southern Yukon, and the Gwich'in of the Mackenzie Delta. Johnson maintains that the ways people understand and act upon land have wide implications, shaping cultures and ways of life, determining identity and polity, and creating and mainting environmental relationships and economies. Her emphassis on landscape and ways of knowing the land provides a particular take on ecological relationships of First Peoples to land.
