نتایج جستجو برای: forestry
تعداد نتایج: 9875 فیلتر نتایج به سال:
Why community forestry? Forest management by rural communities is as old as history, but community forestry as a sponsored process is recent. While definitions abound, in this paper we use community forestry to mean a process whereby specific community forest users protect and manage state forests in some form of partnership with the government (Hobley 1996). The need to increase community part...
Forestry has contributed many problems to the Operations Research (OR) community. At the same time, OR has developed many models and solution methods for use in forestry. In this article, we describe the current status of research on the application of OR methods to forestry and a number of research challenges or open questions that we believe will be of interest to both researchers and practit...
Most forestry machines being produced today include a personal computer that monitors and controls the harvester head, and an information system that stores data on every action the driver or the machine performs. Information and communication technologies (ICTs) thus provide an opportunity to improve efficiency and competitiveness and possibly also opens up new ways of working for actors in th...
Foreign aid can contribute to sustainable forestry in many ways. The goal is to secure forest benefits of the future, without compromising the needs of the present generations. This paper elaborates on forestry aid as it has evolved in the past. Future directions are suggested, referring to short and midterm projects, as well as long-term programmes. Tree planting has worked in the past, and is...
Forestry plans have been influential on tree species and planting in different ways, regulating tree species diversity. Investigation of the changes in tree species diversity and preservation livestock sustainability by using forestry inventory can be an appropriate tool for decision makers in management. Indicators such as the Shannon Wiener and Simpson indices can be used to study the variati...
The aim of this study is to select appropriate criteria such as ecology, economy, social and aesthetic for plantation in Isfahan city, Iran. In order to do this research, 19 questionnaires were distributed among the experts at the study area in 2013. Analytical Hierarchy Process (AHP) technique as a multi-criteria decision making was used for evaluation of urban forestry at this research. Exper...
acquiring, integrating, analyzing and applying digital information to support sustainable forests.” The closely related term, “Digital Forest,” is defined as “a digital representation of forestry information.” These concepts and definitions were developed at “The 1 International Workshop on Digital Forestry,” June 13–19, 2004 in Beijing, China, which was jointly sponsored by Chinese and America...
inappropriate patterns and drastic changes in land-use have caused the severe environmental crisis. therefore, it is necessary to accomplish any plan in relation to establishment of different activities with respect to land capabilities and land-use evaluation thought. in this study, ecological capabilities and the site selection of land uses in babolrood basin, mazandaran province were evaluat...
background & aim: in recent years, iran and other countries pay special attention to side effects of chemical plants. this interest in plants and their derivatives leads to business of medicinal plants. in caspian region, in forestry projects there are many plant species with medicinal uses from which the locale indigenous used due to traditional experience without any especial processing i...
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