نتایج جستجو برای: forest by products
تعداد نتایج: 7222236 فیلتر نتایج به سال:
Enhancement of forest growth through silvicultural modification of stand density is one strategy for increasing carbon (C) sequestration. Using the Fire and Fuels Extension of the Forest Vegetation Simulator, the effects of even-aged, uneven-aged and no-action management scenarios on C sequestration in a southern Appalachian red spruce-Fraser fir forest were modeled. We explicitly considered C ...
Sweden has just more than 23 million hectares of productive forest, which has been actively managed for more than 100 years. This has led to one of the recognized forest products exporting country. Despite the vital role of forests in providing forest products in sustaining various human needs, there is an increasing demand for the inclusion of ecosystem services in forest planning decision mak...
OBJECTIVE This report presents national estimates of selected wellness-related reasons for the use of natural product supplements, yoga, and spinal manipulation among U.S. adults in 2012. Self-reported perceived health outcomes were also examined. METHODS Data from 34,252 adults aged 18 and over collected as part of the 2012 National Health Interview Survey were analyzed for this report. In p...
This study compares the income contribution of forest products with that of farm related activities such as cropping and livestock rearing. Quarterly income data collected over a period of one year are used to compile income profiles for households in two contrasting districts, Mufulira and Kabompo districts in Zambia. Villages in Mufulira are located within easy access to bustling mining towns...
Using forests to mitigate climate change has gained much interest in science and policy discussions. We examine the evidence for carbon benefits, environmental and monetary costs, risks and trade-offs for a variety of activities in three general strategies: (1) land use change to increase forest area (afforestation) and avoid deforestation; (2) carbon management in existing forests; and (3) the...
Several studies of U.S. National Forests suggest that declines of their associated forest products industries were driven by synergistic changes in federal governance and market conditions during the late 20th century. In Alaska, dramatic shifts in the economic and political settings of the Tongass National Forest (Tongass) drove changes in governance leading to collapse of an industrial forest...
-In many applications of Monte Carlo simulation in forestry or forest products, it may be known that some variables are correlated. However, for simplicity, in most simulations it has been assumed that random variables are independently distributed. This report describes an alternative Monte Carlo simulation technique for subjectively assessed multivariate normal distributions. The method requi...
15 J-FOR Journal of Science & Technology for Forest Products and Processes: VOL.1, NO.2, 2011 Agent-based technology and its applications in multi-agent systems are a set of tools used in many sectors, including manufacturing, services, logistics, and health care, to model and study the dynamics, resilience, and self-organization of complex systems, as well as to design prescriptive decision su...
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