نتایج جستجو برای: forestry management

تعداد نتایج: 859308  

2008
Duncan Ray

Climate change is now one of the greatest global challenges, and research is underway to establish the likely impacts on all aspects of the environment. Forestry Commission Scotland has commissioned Forest Research to determine how forests and forestry in Scotland will be affected by climate change. This Research Note provides an initial synopsis of the likely impacts, with preliminary recommen...

2003
Tron Eid

Modellers of large-scale forestry scenario models face numerous challenges. Information and sub-models from different disciplines within forestry, along with statistical and mathematical methodology, have to be considered. The individual biological submodels (i.e. models for recruitment, growth and mortality) applied in large-scale forestry scenario models are in general well documented and ext...

2002

The participation of local communities and other stakeholders in managing forestry and conservation projects can help to improve forest productivity, alleviate poverty, enhance environmental sustainability, and make rules governing forest access more enforceable. Introducing participatory management depends on government commitment; and it requires time and resources to develop consensus among ...

2004
Gregory S. Amacher Erkki Koskela Markku Ollikainen

We propose a framework with endogenous allocation of land between agricultural production, sustainable forest management, and unsustainable forest exploitation in the form of illegal logging to explore deforestation and agricultural and timber supplies when property rights are insecure. Uncertainty over property rights arises through risk of confiscation on sustainably-managed forest land, and ...

2004
B Reynolds

The effects of widespread conifer afforestation on the acidity of lakes and streams in the acid sensitive uplands of the UK has been researched extensively and has contributed to the development and implementation of national forest management guidelines (e.g. Forest and Water Guidelines; Forestry Commission, 1993). However, a recent policy document (Woodlands for Wales; National Assembly for W...

2006
H. R. Ekbia K. M. Reynolds

Decision support systems (DSS) have been extensively used in the management of natural resources for nearly two decades. However, practical difficulties with the application of DSS in real-world situations have become increasingly apparent. Complexities of decision making, encountered in the context of ecosystem management, are equally present in sustainable forestry. Various writers have criti...

2003
Agustı́n Rubio Adrián Escudero

Forestry practices produce intense alterations on soil processes, which in turn could lead to more intense transformations of the system in relation to the availability of resources. From this point of view we conducted research in the critical Mediterranean environment of central Spain to check if length of time-rotation on chestnut (Castanea sativa Mill.) coppice stand allows recovery towards...

2001
Walter SEKOT

The Austrian example illustrates the potentials as well as the limitations of forest accountancy data networks as devices for investigating and furthering the profitability of small scale farm forestry (SSFF). Special reference is made to the experiences gained in the process of adaptation and renewal of the system of data management and reporting, which took place in the year 2000. The sampled...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی و پایه 1390

the present study aimed at investigating the relationship between iranian efl teachers’ classroom management orientations and their teaching styles. additionally, the difference between male and female teachers’ teaching styles and classroom management orientations and their relationship with experience and age were explored. three hundred efl teachers filled in attitudes and beliefs on classro...

2015
Daniel M. Kashian Michael G. Ryan Willaim H. Romme Daniel B. Tinker Monica G. Turner

See next page for additional authors Follow this and additional works at: http://digitalcommons.unl.edu/jfspresearch Part of the Forest Biology Commons, Forest Management Commons, Natural Resources and Conservation Commons, Natural Resources Management and Policy Commons, Other Environmental Sciences Commons, Other Forestry and Forest Sciences Commons, Sustainability Commons, and the Wood Scien...

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