Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 594

View

Book Description

Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309177693
Category : Technology & Engineering
Languages : en
Pages : 354

View

Book Description
The agriculture, forestry, and fishing sectors are the cornerstone of industries that produce food, fiber, and biofuel. The National Institute for Occupational Safety and Health (NIOSH) conducts research in order to improve worker safety and health in these sectors. This National Research Council book reviews the NIOSH Agriculture, Forestry, and Fishing Program to evaluate the 1) relevance of its work to improvements in occupational safety and health and 2) the impact of research in reducing workplace illnesses and injuries. The assessment reveals that the program has made meaningful contributions to improving worker safety and health in these fields. To enhance the relevance and impact of its work and fulfill its mission, the NIOSH Agriculture, Forestry, and Fishing Program should provide national leadership, coordination of research, and activities to transfer findings, technologies, and information into practice. The program will also benefit from establishing strategic goals and implementing a comprehensive surveillance system in order to better identify and track worker populations at risk.

Author: Daowei Zhang
Publisher: UBC Press
ISBN: 0774821558
Category : Business & Economics
Languages : en
Pages : 414

View

Book Description
Forestry cannot be isolated from the forces that drive all economic activity. It involves using land, labour, and capital to produce goods and services from forests, while economics helps in understanding how this can be done in ways that will best meet the needs of people. Therefore, a firm grounding in economics is integral to sound forestry policies and practices. This book, a major revision and expansion of Peter H. Pearse’s 1990 classic, provides this grounding. Updated and enhanced with advanced empirical presentation of materials, it covers the basic economic principles and concepts and their application to modern forest management and policy issues. Forest Economics draws on the strengths of two of the field’s leading practitioners who have more than fifty years of combined experience in teaching forest economics in the United States and Canada. Its comprehensive and systematic analysis of forest issues makes it an indispensable resource for students and practitioners of forest management, natural resource conservation, and environmental studies.

Author: National Research Council
Publisher: National Academies Press
ISBN: 9780309042482
Category : Technology & Engineering
Languages : en
Pages : 100

View

Book Description
Forests are valuable in our daily lives, crucial to our nation's ecomony, and integral to the long-term health of the environment. Yet, forestry research has been critically underfunded, and the data generated under current research programs is not enough to meet the diverse needs of our society. Forestry Research provides a research agenda that should yield the information we need to develop responsible policies for forest use and management. In this consensus of forestry experts, the volume explores: The diverse and competing concerns of the timber industry, recreational interests, and wildlife and environmental organizations. The gap between our need for information and the current output of the forestry research program. Areas of research requiring attention: biology of forest organisms, ecosystem function and management, human-forest interactions, wood as raw material, and international trade and competition. Forestry Research is an important book of special interest to federal and state policymakers involved in forestry issues, research managers, researchers, faculty, and students in the field.

Author: M. P. Coutts
Publisher: Cambridge University Press
ISBN: 0521460379
Category : Nature
Languages : en
Pages : 503

View

Book Description
Covers wind behaviour, mechanical physiological responses of trees and forest management.

Author: Patrick D. Miles
Publisher:
ISBN:
Category : Specific gravity
Languages : en
Pages : 40

View

Book Description
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. --

Author: Heinz Rennenberg
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 586

View

Book Description

Author: David S. Pilliod
Publisher:
ISBN:
Category : Forest animals
Languages : en
Pages : 44

View

Book Description
This paper synthesizes available information on the effects of hazardous fuel reduction treatments on terrestrial wildlife and invertebrates in dry coniferous forest types in the West. We focused on thinning and/or prescribed fire studies in ponderosa pine (Pinus ponderosa) and dry-type Douglas-fir (Pseudotsuga menziesii), lodgepole pine (Pinus contorta), and mixed coniferous forests. Overall, there are tremendous gaps in information needed to evaluate the effects of fuel reduction on the majority of species found in our focal area. Differences among studies in location, fuel treatment type and size, and pre- and post-treatment habitat conditions resulted in variability in species responses. In other words, a species may respond positively to fuel reduction in one situation and negatively in another. Despite these issues, a few patterns did emerge from this synthesis. In general, fire-dependent species, species preferring open habitats, and species that are associated with early successional vegetation or that consume seeds and fruit appear to benefit from fuel reduction activities. In contrast, species that prefer closed-canopy forests or dense understory, and species that are closely associated with those habitat elements that may be removed or consumed by fuel reductions, will likely be negatively affected by fuel reductions. Some habitat loss may persist for only a few months or a few years, such as understory vegetation and litter that recover quickly. The loss of large-diameter snags and down wood, which are important habitat elements for many wildlife and invertebrate species, may take decades to recover and thus represent some of the most important habitat elements to conserve during fuel reduction treatments. Management activities that consider the retention of habitat structures (such as snags, down wood, and refugia of untreated stands) may increase habitat heterogeneity and may benefit the greatest number of species in the long run.

Author: B.A. Hutchison
Publisher: Springer Science & Business Media
ISBN: 9400953054
Category : Science
Languages : en
Pages : 683

View

Book Description
The effects of meteorological phenomena upon forest produc tivity and forestry operations have been of concern for many years. With the evolution of system-level studies of forest eco system structure and function in the International Biological Program and elsewhere, more fundamental interactions between forest ecosystems and the atmosphere received scientific atten tion but the emphasis on meteorological and climatological effects on forest processes remained. More recently, as recogni tion has developed of potential and actual problems associated with the atmospheric transport, dispersion, and deposition of airborne pollutants, the effects of forest canopies upon boundary-layer meteorological phenomena has come under scientific scrutiny. Looking to the future, with rising atmospheric con centrations of C02 and increasing competition for the finite fresh-water resources of the earth, interest in the role of forests in global C02 and water balances can also be expected to intensify. Thus, the nature of forest canopy-atmosphere interac tions, that is to say, the meteorological phenomena occurring in and above forest canopies, are of importance to a wide variety of scientific and social-issues. Demands for forest meteorological information currently exceed levels of knowledge and given the economic constraints of science in general and environmental sciences in particular, chances for major improvements in scien tific support in the near future are slim. Unfortunately, studies of environmental phenomena in and above forests are costly and logistically difficult. Trees, the ecological dominants of forest ecosystems, are the largest of all terrestrial organisms.

Author: David Fedman
Publisher: University of Washington Press
ISBN: 0295747471
Category : History
Languages : en
Pages : 315

View

Book Description
Conservation as a tool of colonialism in early twentieth-century Korea Japanese colonial rule in Korea (1905–1945) ushered in natural resource management programs that profoundly altered access to and ownership of the peninsula’s extensive mountains and forests. Under the banner of “forest love,” the colonial government set out to restructure the rhythms and routines of agrarian life, targeting everything from home heating to food preparation. Timber industrialists, meanwhile, channeled Korea’s forest resources into supply chains that grew in tandem with Japan’s imperial sphere. These mechanisms of resource control were only fortified after 1937, when the peninsula and its forests were mobilized for total war. In this wide-ranging study David Fedman explores Japanese imperialism through the lens of forest conservation in colonial Korea—a project of environmental rule that outlived the empire itself. Holding up for scrutiny the notion of conservation, Seeds of Control examines the roots of Japanese ideas about the Korean landscape, as well as the consequences and aftermath of Japanese approaches to Korea’s “greenification.” Drawing from sources in Japanese and Korean, Fedman writes colonized lands into Japanese environmental history, revealing a largely untold story of green imperialism in Asia.