نتایج جستجو برای: forestry policies
تعداد نتایج: 131189 فیلتر نتایج به سال:
The biophysical effects of forests on climate have been extensively studied with climate models. However, models cannot accurately reproduce local climate effects due to their coarse spatial resolution and uncertainties, and field observations are valuable but often insufficient due to their limited coverage. Here we present new evidence acquired from global satellite data to analyse the biophy...
In recent years there has been a great deal of discussion on the working of village forest institutions (VFI) in developing countries with a view to understanding their role as rural institutions. In a tropical country like India, the success of any community based forest management effort largely depends on the emergence as well as role played by the institutions at local village level, which ...
The biorefinery is generally recognized as a promising solution to transform the forestry industry. From a company perspective, at least two important decision-making elements need to be addressed: what is the best biorefinery configuration in terms of product/process portfolio, supply-chain network, capacity and manufacturing flexibility, and, for a defined biorefinery configuration, what supp...
Ethanol made biologically from cellulosic biomass, including agricultural and forestry residues, portions of municipal waste, and herbaceous and woody crops, is finally being widely recognized as a unique transportation fuel with powerful economic, environmental and strategic attributes. Although underfunded, it has been advanced to be competitive with corn ethanol; however, government policies...
• Non-linear dynamics modelling description for simulating the behaviour of forestry cranes 2014 • Modeling an industrial flotation process: A case study at the mining company Boliden AB 2012 • Modeling dynamics of an electro-hydraulic servo actuated manipulator: A case study of a forestry forwarder crane 2012 • Underactuated mechanical systems: Contributions to trajectory planning, analysis, a...
We examined the risk factors for heatstroke among forestry workers in Japan during the summer. We distributed a questionnaire to 124 forestry workers to determine heatstroke symptoms, degree of sweating and hydration, as well as perceived hotness and amount of sunlight at work sites. Forty of the workers (32.3%) reported experiencing heatstroke symptoms. Thirteen and 21 of them reported such sy...
Appropriate utilization of forest resources is important for improving rural household livelihoods and conservation in the forest rich areas of developing countries. Using a survey of 1074 rural households in 20 administrative villages in the four southern mountainous townships in Zhouzhi County, Xian, China, we find that there are four forestry-related livelihood activities in our survey site....
Forest resource is the material basis of forestry production and forestry sustainable development. Nowadays the concept of “Digital Forestry” is put forward and 3S technology is used in forestry. Therefore the embedded system of forest resource information acquisition has been designed which integrated embedded technology with GIS, 3G wireless communication technology and GPS. After analyzing t...
Carbon sequestration through forestry has the potential to play a significant role in ameliorating global environmental problems such as atmospheric accumulation of GHG's and climate change. This chapter provides an overview of various aspects related to carbon sequestration through forestry. It describes the main concepts of carbon fixation; the trends in global environmental policy are discus...
Extension Forestry has long acted as a medium for landowner education and engagement through a variety of programs that encourage peer learning. We describe recent trends and innovations in Extension Forestry programming by reporting the results of surveys and focus groups with the managers of 39 (of 42 identified) Extension Forestry master volunteer and other peer-learning programs. These prog...
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