نتایج جستجو برای: wood forest products
تعداد نتایج: 426655 فیلتر نتایج به سال:
Using wood wastes provides an opportunity to avoid fossil carbon emissions from the combustion of natural gas or other fossil fuels. Using a life-cycle assessment, a new biomass boiler sourced by forest residuals, sawmill residuals, and clean demolition material (CDM) was compared with an existing natural gas boiler for supplying heat to a large-scale district heating system. Potential alternat...
Trees are cultivated in public and private landscapes in and around cities and towns. They are grown for the tremendous contributions they make both to the environment and the quality of people’s lives. In this urban forest, trees must be removed when they die or for reasons of health, safety, or necessary changes in the landscape. The wood from these felled landscape trees could potentially be...
Non-timber forest products (NTFPs) are important in rural southwest Virginia as a source of household income. Marketing system of crafts, medicinal and herbal, and specialty wood products are studied using exploratory and qualitative research methods. Fifty market players at various levels in marketing chains are interviewed to get the information on elements of marketing system–products, produ...
The annual rings of softwoods are visually obvious and represent cylindrical layers of primarily cellulosic material that possess significantly different properties. For simplicity, wood construction products are designed assuming a material homogeneity that does not exist. As rapidly grown plantation trees are used for wood products, fewer rings are contained in an individual wood product with...
The world’s political and economic decisions are increasingly determined by resource and energy scarcity and by climate change. In these circumstances, a balance must be achieved between economics, ecology and social welfare (sustainability), which was put forward at the end of the 20th century and has been irrevocably linked to forestry ever since. It is essential that the forest sector is pla...
The perspectives and attitudes of the companies of the forest products industry operating in the fields of solid wood products, pulp, paper and paperboard products, engineered wood products and furniture manufacturing in Turkey on the chain of custody certification system and certified forest products were investigated. Within this scope, face-to-face interviews were conducted with the managers...
Leakage Implications for European Timber Markets from Reducing Deforestation in Developing Countries
Forest management strategies and policies such as REDD (reduced emissions from deforestation and forest degradation) may have unintentional implications for forest sectors in countries not targeted by such policies. The success of a policy effort like REDD would result in a significant reduction in deforestation and forest degradation and an ensuing reduction in the supply of natural forest tim...
Preservative treatment of wood has a long history in the United States and throughout the world. Even the early settlers to the New World in the 17th century used wood preservatives to protect homes and other structures. The treated wood industry in the United States is evolving as new products emerge, technology advances, and environmental concerns increase. Recently, chromated copper arsenate...
Consumers' Attitudes Towards the Development of Transgenic Forest Trees and their Products in Greece
This paper aims to examine the attitudes of the consumers in Greece towards the use of biotechnology in forest plantations and their potential purchases of forest transgenic products. Three groups of factors related the consumers’ attitude on the use of biotechnology in forest plantations with the potential purchases of transgenic forest products: (a) the potential negative environmental impact...
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