Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2014 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harmonisation of Regulatory Oversight in Biotechnology Safety Assessment of Transgenic Organisms Volume 3 OECD Consensus Documents written by OECD and published by OECD Publishing. This book was released on 2010-11-09 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: These OECD Biosafety Consensus Documents identify elements of scientific information used in the environmental safety and risk assessment of transgenic organisms which are common to OECD member countries and some non members associated with the work.
Download or read book Fir Broom Rust written by Roger S. Peterson and published by . This book was released on 1964 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Continuous Cover Forestry written by Timo Pukkala and published by Springer Science & Business Media. This book was released on 2011-10-14 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the majority of the world’s forest ecosystems are dominated by uneven-sized multi-species stands, forest management practice and theory has focused on the development of plantation monocultures to maximize the supply of timber at low cost. Societal expectations are changing, however, and uneven-aged multi-species ecosystems, selectively managed as Continuous Cover Forestry (CCF), are often believed to be superior to monocultures in addressing a wide range of expectations. This book presents methods which are relevant to CCF management and planning: analysing forest structures, silvicultural and planning, economic evaluation, based on examples in Europe, Asia, Africa and North and South America.
Download or read book Wetland Woodland Wildland written by Elizabeth Hathaway Thompson and published by University Press of New England. This book was released on 2000 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first field guide to all of Vermont's natural communities
Download or read book Forest Development in Cold Climates written by John Alden and published by Springer Science & Business Media. This book was released on 1993-06-30 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: ''Required reading for forest scientists.'' -Northeastern Naturalist
Download or read book Specific Gravity and Other Properties of Wood and Bark for 156 Tree Species Found in North America written by Patrick D. Miles and published by . This book was released on 2009 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much information is available for specific gravity and other properties of wood and bark, but it is widely scattered in the literature. This paper compiles information for estimation of biomass for 156 tree species found in North America for use in national forest inventory applications. We present specific gravities based on average green volume as well as 12 percent moisture content volume for calculation of oven-dry biomass. Additional information is included on bark thickness, bark voids, and bark percentages by species and green and dry weight of wood and bark. --
Download or read book A National Ecological Framework for Canada written by Ecological Stratification Working Group (Canada) and published by Centre for Land and Biological Resources Research ; Hull, Quebec : State of the Environment Directorate. This book was released on 1996 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: [An] expanded attribute database [that] includes attribute data for the ecoprovince level of generalization.
Download or read book Assessing Crown Fire Potential by Linking Models of Surface and Crown Fire Behavior written by Joe H. Scott and published by . This book was released on 2001 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire managers are increasingly concerned about the threat of crown fires, yet only now are quantitative methods for assessing crown fire hazard being developed. Links among existing mathematical models of fire behavior are used to develop two indices of crown fire hazard-the Torching Index and Crowning Index. These indices can be used to ordinate different forest stands by their relative susceptibility to crown fire and to compare the effectiveness of crown fire mitigation treatments. The coupled model was used to simulate the wide range of fire behavior possible in a forest stand, from a low-intensity surface fire to a high-intensity active crown fire, for the purpose of comparing potential fire behavior. The hazard indices and behavior simulations incorporate the effects of surface fuel characteristics, dead and live fuel moistures (surface and crown), slope steepness, canopy base height, canopy bulk density, and wind reduction by the canopy. Example simulations are for western Montana Pinus ponderosa and Pinus contorta stands. Although some of the models presented here have had limited testing or restricted geographic applicability, the concepts will apply to models for other regions and new models with greater geographic applicability.
Download or read book Landscape scale Conservation Planning written by Stephen C. Trombulak and published by Springer Science & Business Media. This book was released on 2010-09-21 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hugh P. Possingham Landscape-scale conservation planning is coming of age. In the last couple of decades, conservation practitioners, working at all levels of governance and all spatial scales, have embraced the CARE principles of conservation planning – Comprehensiveness, Adequacy, Representativeness, and Efficiency. Hundreds of papers have been written on this theme, and several different kinds of software program have been developed and used around the world, making conservation planning based on these principles global in its reach and influence. Does this mean that all the science of conservation planning is over – that the discovery phase has been replaced by an engineering phase as we move from defining the rules to implementing them in the landscape? This book and the continuing growth in the literature suggest that the answer to this question is most definitely ‘no. ’ All of applied conservation can be wrapped up into a single sentence: what should be done (the action), in what place, at what time, using what mechanism, and for what outcome (the objective). It all seems pretty simple – what, where, when, how and why. However stating a problem does not mean it is easy to solve.
Download or read book Methods for Calculating Forest Ecosystem and Harvested Carbon with Standard Estimates for Forest Types of the United States written by and published by . This book was released on 2006 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents techniques for calculating average net annual additions to carbon in forests and in forest products. Forest ecosystem carbon yield tables, representing stand-level merchantable volume and carbon pools as a function of stand age, were developed for 51 forest types within 10 regions of the United States. Separate tables were developed for afforestation and reforestation. Because carbon continues to be sequestered in harvested wood, approaches to calculate carbon sequestered in harvested forest products are included. Although these calculations are simple and inexpensive to use, the uncertainty of results obtained by using representative average values may be high relative to other techniques that use site- or project-specific data. The estimates and methods in this report are consistent with guidelines being updated for the U.S. Voluntary Reporting of Greenhouse Gases Program and with guidelines developed by the Intergovernmental Panel on Climate Change. The CD-ROM included with this publication contains a complete set of tables in spreadsheet format.
Download or read book Integrated Pest Management written by Rajinder Peshin and published by Springer. This book was released on 2009-04-29 with total page 1324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This interdisciplinary text offers updated knowledge on pest management. It discusses dissemination and impact on a range of crops across the globe on industrialized and subsistence level farms. It also explores the effect of the green revolution on IPM.
Download or read book Forest Dynamics Growth and Yield written by Hans Pretzsch and published by Springer Science & Business Media. This book was released on 2009-06-19 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to improve the understanding of forest dynamics and the sustainable management of forest ecosystems. How do tree crowns, trees or entire forest stands respond to thinning in the long term? What effect do tree species mixtures and multi-layering have on the productivity and stability of trees, stands or forest enterprises? How do tree and stand growth respond to stress factors such as climate change or air pollution? Furthermore, in the event that one has acquired knowledge about the effects of thinning, mixture and stress, how can one make that knowledge applicable to decision-making in forestry practice? The experimental designs, analytical methods, general relationships and models for answering questions of this kind are the focus of this book. Given the structures dealt with, which range from plant organs to the tree, stand and enterprise levels, and the processes analysed in a time frame of days or months to decades or even centuries, this book is directed at all readers interested in trees, forest stands and forest ecosystems. This work has been compiled for students, scientists, lecturers, forest planners, forest managers, and consultants.
Download or read book Forest Entomology written by Lalit Kumar Jha and published by APH Publishing. This book was released on 2008 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Environmental Science written by Jeffery Clarke and published by . This book was released on 2019-06-24 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental science is a vast field concerned with the study of numerous environmental phenomena. As a discipline, environmental science integrates theories and concepts of many other scientific fields like biology, chemistry, plant science, limnology, etc. Ecology, on the other hand, is an interdisciplinary field of biology that studies the relationships of organisms with their immediate surroundings. Ecology has a number of applications across various fields of study such as conservation biology, natural resource management, wetland management, etc. This book attempts to present the concepts and theories central to the field of ecology in detail and examine their relevance in the field of environmental science. It unfolds the innovative aspects of ecology and illustrates how the techniques of this field can be applied for the progress of environmental science in the future. The topics included in this book are of utmost significance and bound to provide incredible insights to readers. Those in search of information to further their knowledge will be greatly assisted by this book.
Download or read book Symptomatology Trend of Tree Condition of Red Spruce Balsam Fir written by and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioclimatic Analysis of Declining Aspen Stands in Northeastern Ontario written by Jean-Noël Candau and published by Sault Ste. Marie : Ontario Ministry of Natural Resources. This book was released on 2002 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2000-01, aspen decline was observed over large areas of north-east Ontario. This study analyzes the bioclimatic characteristics of the areas affected and suggests potential causes of the decline. The bioclimatic characteristics analyzed include forest tent caterpillar defoliation; drought history; forest composition, age, & structure; and soil quality.
