نتایج جستجو برای: forestry operations
تعداد نتایج: 145536 فیلتر نتایج به سال:
the major purpose of this study is to assess the perception of managers in the forest, range and watershedorganization. it is an applied study by using descriptive–correlative method. a questionnaire was developedand data collected from 105 respondents. the validity and reliability of questionnaires was verified. theresults of study show that there was a relationship between educational level, ...
Forest future depends on forest stands regeneration. Soil is one of the principal capitals in the forest area. It is important to minimize damages to the forest ecosystem during logging operation. In forestry and forest management, it is significant to know the effect of forest logging damages on regeneration, sapling and soil compaction. This study was carried out in Asalem Beech forest area, ...
In a wider context of attempting to minimise forestry related occupational hazards, this paper aimed evaluate the ability FSC forest management certification contribute identifying, describing, and reducing health safety issues in Romania. By extracting analysing non-conformities from auditing reports issued for Romanian operations between 2013 2018, study reveals that most important risk facto...
Forestry today is on the threshold of promising change as biotechnology is introduced into its operations. Sophisticated tissue cultures for cloned seedlings and genetically modified organisms portend many benefits as more of the world’s industrial wood is being produced on planted forests. In many cases biotechnology in forestry is simply an extension of agricultural innovations, such as herbi...
Operations research techniques such as mathematical programming, simulation, and the development of planning systems can contribute to decision-making in forestry management. Computers have dramatically changed the possibilities and practice of data collection, storage, analysis, and presentation but the difficulty of obtaining access to them has until recently limited their use. Development of...
Claim of sustainability are virtually impossible to prove but enough is known about tropical forest ecology and silviculture to protect ecosystem functions and maintain biodiversity while still deriving financial profirs from logging . Rapid improvements in long-term forest production will derive from better planning of harvesting operations and stand improvement treatments. Lack of good manage...
State-owned forestry enterprises are important elements of the forestry economy in China. The operational efficiency of such enterprises depends on technological progress and other input factors. Total factor productivity (TFP) is an important means to evaluate the efficiency of technical elements. The growth of production efficiency can be classified into efficiency variation and technical var...
Nacrtak Environmentally sound technologies are a key to reduce resource use and environmental impact. The paper reviews the state of knowledge of an analysis tool, life cycle assessment (LCA), by addressing three issues: 1) methodological foundations of LCA, 2) lifecycle inven tory modeling, and 3) environmental performance indicators for wood supply systems. The study results in the following...
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