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Forestry Compendium

Comprehensive, encyclopedic resource for information on forestry

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AbstractFull Text

Investigation have been carried out in mature oak stands in Vidin and Bourgas State Forestries. The results show that when gypsy moth's density is up to 25-30 egg-pods per 100 trees, the little insectivorous birds are, when at increased densities, a main factor of regulating the pest's frequence....

Author(s)
Penev, D.; Ovcharov, D.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Proceedings of a jubilee symposium marking 125 years of the Bulgarian Academy of Sciences and 65 years of the Forest Research Institute, Sofia, Bulgaria, 22-23 September 1994, 1995, pp 153-159
AbstractFull Text

The wood turning process is comprised of two stages: preceding (rough) and finishing (fine) working. This paper describes the development of automatic control of the finishing stage of longitudinal (external) turning. The three wood species used were: Fagus moesiaca, Quercus sessiliflora [Q....

Author(s)
Dedić, A.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Study, conservation and utilisation of forest resources. Proceedings of the Second Balkan Scientific Conference, Sofia, Bulgaria, 3-5 June 1996. Volume II, 1996, pp 241-246
AbstractFull Text

There are frequently extensive defoliations in Hungary - mainly in oak forests - caused by assemblage of geometrid moths. The dynamics of population and damages of most important winter (Operophtera brumata L., Erannis defoliaria Cl., Colotois pennaria Hübn., Agriopis aurantiaria Hübn.) and spring...

Author(s)
Leskó, K.; Szentkirályi, F.; Kádár, F.
Publisher
Erdészeti Tudományos Intézet (Forest Research Institute), Budapest, Hungary
Citation
Erdészeti Kutatások, 1998, 88, pp 319-333
AbstractFull Text

Studies have been carried out as on natural and high-stem Quercus conferta Kit. and Quercus cerris L. plantations, in the area of the mountain of Strandja and Sredetz State Forestry, being those plantations laid onto a level terrain trending to sloping, and being of a 300 mts altitude. The...

Author(s)
Kostadinov, K.; Broshtilova, M.; Trendafilov, P.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Proceedings of an international jubilee conference marking the 70th anniversary of the Forest Research Institute, Sofia, Bulgaria, 6-7 October 1998. Volume 1, 1998, pp 289-296
AbstractFull Text

The devitalizing process within the studied stand developed under frequent activity of adverse factors and adverse stand state, as consequence to intensive tree progress and inadequate tending. At the age of 42, approximately 75% of the overstand trees had irregularly grown and compressed crowns,...

Author(s)
Bobinac, M.; Andrasev, S.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Study, conservation and utilisation of forest resources. Proceedings of the Third Balkan Scientific Conference, Sofia, Bulgaria, 2-6 October 2001. Volume I, 2002, pp 426-434
AbstractFull Text

The paper summarizes the results from research on development of embryogenic systems for in vitro regeneration in some broadleaved and coniferous species (Quercus robur L., Pinus silvestris L., Pinus nigra Arn., Picea pungens Engeln.). Effects of different factors influencing qualitative and...

Author(s)
Tsvetkov, I.; Gjuleva, V.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Study, conservation and utilisation of forest resources. Proceedings of the Third Balkan Scientific Conference, Sofia, Bulgaria, 2-6 October 2001. Volume II, 2002, pp 184-190
AbstractFull Text

The Dupkata biosphere protected area was announced as reserve in 1956. It is situated in Southern part of Trakia forest and plants area, sub area Western Rhodopes. The main part of its territory is in the middle forest mountain area between 1300 and 1500 m above sea level. The total reserve area is ...

Author(s)
Kolev, N. D.; Kolev, I. D.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Proceedings of an international scientific conference marking 75 years of the Forest Research Institute of the Bulgarian Academy of Sciences, Sofia, Bulgaria, 1-5 October 2003. Volume 1, 2004, pp 316-323
AbstractFull Text

This paper analyses the problem of Turkey oak devitalisation in a middle-aged stand without the necessary tending measures in the early phase of development. The consequence of this and other unfavourable factors were the signs of devitalisation in the form of poorly developed crowns, sharply...

Author(s)
Bobinac, M.; Vuckovic, M.; Andrasev, S.
Publisher
Forest Research Institute, Sofia, Bulgaria
Citation
Proceedings of an international scientific conference marking 75 years of the Forest Research Institute of the Bulgarian Academy of Sciences, Sofia, Bulgaria, 1-5 October 2003. Volume 2, 2004, pp 197-203
AbstractFull Text

This occasional paper is based on the results of a three-year project examining the emergence of forest-based grassroots movements in Latin America. Funded by the Ford Foundation, the Support to Grassroots Community Forestry Organizations in Central America and Brazil Project sought to understand...

Author(s)
Cronkleton, P.; Taylor, P. L.; Barry, D.; Stone-Jovicich, S.; Schmink, M.
Publisher
Center for International Forestry Research (CIFOR), Jakarta, Indonesia
Citation
CIFOR Occasional Paper, 2008, No.49, pp iv + 36 pp.
AbstractFull Text

Author(s)
Palma, J.; Graves, A. R.; Burgess, P. J.; Werf, W. van der; Herzog, F.
Publisher
Wageningen University and Research Centre, Wageningen, Netherlands
Citation
Proceedings of the Conference on integrated assessment of agriculture and sustainable development: Setting the Agenda for Science and Policy (AgSAP 2009), Hotel Zuiderduin, Egmond aan Zee, The Netherlands, 10-12 March 2009, 2009, pp 458-459

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