نتایج جستجو برای: forest management

تعداد نتایج: 943156  

2002
CLAS FRIES TOMAS LAMAS

Fries, C. & Lamls, T. 2000. Different management regimes in a boreal forest landscape: ecological and economic effects. Studia Forestalia Suecica 208. 25 pp. ISSN 0039-3150. Five management regimes were theoretically applied and evaluated in a 10 000 ha boreal forest landscape. Four regimes were designed to enhance conditions for biodiversity conservation, by establishing reserves and by modify...

1988
Ernie Niemi Ed Whitelaw

Niemi, Ernie; Whitelaw, Ed. 1999. Assessing economic tradeoffs in forest management. Revised. Gen. Tech. Rep. PNW-GTR-403. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 78 p. Method is described for assessing the competing demands for forest resources in a forest management plan by addressing economics values, economic impacts, and perceptions...

2016
Rachel St John Karin Öhman Sándor F. Tóth Per Sandström Anu Korosuo Ljusk Ola Eriksson

Combining Spatiotemporal Corridor Design for Reindeer Migration with Harvest Scheduling in Northern Sweden Rachel St John1, Karin Öhman2, Sándor F. Tóth3, Per Sandström4, Anu Korosuo5, Ljusk Ola Eriksson6 1(Corresponding Author) Industrial & Systems Engineering, University of Washington, Seattle, United States, [email protected] 2Department of Forest Resource Management, Swedish Universit...

2011
Alan T. Murray

Forest planning is a complex endeavor when political agendas, public demands, industry needs, and sustainability issues are thrown into the mix. Spatial decision support systems (SDSS) have evolved to address this complex planning situation. Considerable work on SDSS development has emanated from the field of forestry. This article reviews SDSS development and use in forest resource management....

Journal: :MCFNS 2012
Jay A. Anderson Glen W. Armstrong Martin K. Luckert Wiktor L. Adamowicz

Previous studies suggest that management intensity zoning systems, such as the triad approach, could allow Canada’s forest industry to maintain or increase timber harvest levels while simultaneously reducing its environmental impact. In most such studies, the zones are exogenously specified. In this study, we use a linear programming model to endogenously allocate forest land to management inte...

2011
Sreejith Aravindakshan

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 ...

2012
Jean-Michel Carnus Geerten M. Hengeveld

Adaptation of forest management practices in the context of rapid climatic and socioeconomic changes is a global concern. Stakeholders in the forest-based sector as well as policy makers need improved methods and tools to assess potential impacts of changes in management on sustainability indicators. In this special feature, we introduce a methodological framework for classification of forest m...

2010
David Barton Bray

Key points • Regions where community forest enterprises dominate the landscape have low to non-existent deforestation, sustainable forest management, enhancement of carbon stocks, forest conservation and substantial generation of sustainable livelihoods. Corruption and deforestation are also associated with some Mexican forest communities, but these regions have created a sector with hundreds o...

Journal: :Journal of environmental management 2013
Rasoul Yousefpour Christian Temperli Harald Bugmann Che Elkin Marc Hanewinkel Henrik Meilby Jette Bredahl Jacobsen Bo Jellesmark Thorsen

We study climate uncertainty and how managers' beliefs about climate change develop and influence their decisions. We develop an approach for updating knowledge and beliefs based on the observation of forest and climate variables and illustrate its application for the adaptive management of an even-aged Norway spruce (Picea abies L. Karst) forest in the Black Forest, Germany. We simulated fores...

Journal: :جنگل و فرآورده های چوب 0
محمود بیات دکتری جنگل داری، دانشکدۀ منابع طبیعی دانشگاه تهران، کرج، ایران منوچهر نمیرانیان استاد، دانشکدۀ منابع طبیعی دانشگاه تهران، کرج، ایران محمود زبیری استاد، دانشکدۀ منابع طبیعی دانشگاه تهران، کرج، ایران تیمو پوکالا استاد گروه جنگل داری، دانشگاه شرقی فنلاند، جوئنزو، فنلاند

hyrcanian forests are the most valuable forests in the north of iran and industrial harvesting occurs only in this area. it is a productive region near the southern coast of caspian sea. in these forests mixed beech stands mostly shown uneven-aged structure that is managed under selection system. in order to determine the priority of uneven aged method not only from an ecological view, but also...

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