VIRGIN FORESTS AND FOREST RESERVES IN ... - Natura 2000

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158 Strict forest reserves in Europe Research on biodiversity factors should be further consolidated and enhanced. There is an increasing need for an inter- and multi-disciplinary approach in order to link silvicultural management to zoological and botanical disciplines. Old, comparative, permanent experimental plots are important, because by re-analysing them, new data on untouched forests, and to varying degrees, managed forests, may be obtained, even in the short term. By increasing knowledge relevant to the implementation of nature-oriented silviculture, it will be possible to offset the continuing clamour for changes in silvicultural management. Though nature-oriented silviculture in Europe must be defined carefully as knowledge increases, it can be concluded that the greatest threat to the quality of forests and their sustainability in Europe are external factors that emanate outside the forest, as opposed to underdeveloped silvicultural method. Air pollution poses an increasing threat to Central European forests. Carbon dioxide emissions and greenhouse gases, resulting in possible global warming are threats to forests, especially in peripheral areas in the north and on mountain slopes. It is necessary to reduce and monitor emissions on an international scale. Silvicultural procedures cannot eliminate for these effects. However, these effects can be offset, to some degree, by altering silvicultural operations. In Europe, a serious problem is the underutilisation of forest growth. Annual fellings are only 65-77% of the annual growth. In order to maintain forests’ resistance to outside factors, wood usage in Central Europe as well as in the Nordic countries should be increased. If forests are not managed and thinned, they become old and dense and consequently, there is an increasing amount of dead and drawn trees. The most serious practical problem is the thinning of young forests. If this procedure is neglected, the optimal, natural production capacity of forests may be lost. ACKNOWLEDGEMENTS The opinions and views expressed in this paper are those of the author and do not necessarily represent those of the COST Action E4. The author would like to thank Dr. Declan Little who checked the language of this article and Ms. Anu Susi and Ms. Virpi Ahonen for their assistance in compiling the materials. REFERENCES ANGELSTAM, P. (1997) Landscape analysis as a tool for the scientific management of biodiversity. Ecological Bulletins 46: 140-170. Copenhagen ANGELSTAM, P. / PETTERSON, B. (1997) Principles of present Swedish forest biodiversity management. Ecological Bulletins 46: 191-203. Copenhagen ANNILA, E. (1998) Forest management and threatened species. Proceeding. Nordic symposium “New stand types in boreal forestry – ecological features and silvicultural consequences. February 10-11.1998, Vaasa. BORCHERS, J. (1997) Kosten und Nutzen einer “Naturland” - Zertifizierung, 1997, Wiesbaden BROEKMEYER, M.E.A. / VOS, W. (1993) Forest reserves in Europe: A review in Broekmeyer, M.E.A., Vos, W. and Koop, H. (eds.), 1993. European forest reserves. Proceedings of the European forest reserves workshop. PUDOC-DLO, Wageningen. p. 306.
COST Action E4: Forest Reserves Research Network 159 BÜCKING, W. (1997) Naturwald, Naturwaldreservate, Wildnis in Deutschland und Europa (Natural Forests, Strict Forest Reserves, Wilderness Areas in Germany and in Europe) “Forst und Holz” Nr. 18:515-522 BÜCKING, W. / OTT, W. / PUTTMANN, O. (1994) Geheimnis Wald. DWR- Verlag. 192 p. ‘Der Wald hat ein Problem – Wir haben eine Lösung’ (1996) AFZ/der Wald 19:1066 EDER, W. (1997) Naturnahe, nachhaltige Forstwirtschaft in Zentraleuropa. (Sustainable Close-tonature Forestry in Central Europe) “Forst und Holz” Nr. 20 .pp. 587-592 ESSEEN, P-A. / EHNSTRÖM, B. / ERICSON, L. / SJÖBERG, K. (1997) Boreal forests. Ecological Bulletins 46: 16-47. Copenhagen Forest Report by the Federal Government (1997) Bundesministerium für Ernährung, Landwirtschaft und Forsten. Bonn. 54 p. FRAMSTAD E. (1996) Biodiversity and sustainable Forestry in Norway – criteria and indicators. Sustainable Forest Management, TemaNord 1996:578. Copenhagen. pp. 89-94 FRIVOLD, L. H. (1996) Considerations about sustainable silviculture in Norway. Sustainable Forest Management, TemaNord 1996:578. Copenhagen. pp. 158-166 GEMMEL, P. (1996) Silviculture for sustainable forestry. Sustainable Forest Management, TemaNord 1996:578. Copenhagen. pp. 167-174 Interim Report on the Follow-Up of the Second Ministerial Conference, Ministerial Conference on the Protection of Forests in Europe, 16-17, June 1993 in Helsinki. (1993) Ministry of Agriculture and Forestry. Helsinki. 255 p. JÄRVELÄINEN, V-P./ TIKKANEN, L. / TORVELAINEN, J. (1997) Metsien monimuotoisuuden turvaamisen taloudelliset vaikutukset. Summary: Economic effects of Preserving Forest Biodiversity in Finland. Helsingin yliopisto, taloustieteen laitos. Julkaisuja nro.15. Yksityismetsätalous. 96 p. KEENAN, R. J. / KIMMINS, J. P. (Hamish) (1993) The ecological effects of clear-cutting. Environ. Rev. 1: 121-144. KNUDSEN, J. E. (1996) Silvicultural methods and sustainability. Sustainable Forest Management, TemaNord 1996:578. pp. 184-194 KOCH, G. / KIRCHMEIER, H. / REITER, K. / GRABHERR, G. (1997) Wie natürlich ist Österreichs Wald? Ergebnisse und Trends. Österreichische Forstzeitung 1/1997: 5-8. KORPEL, S. (1997) Totholz in Naturwäldern und Konsequenzen für Naturschutz und Forstwirtschaft. (Dead Wood in Natural Forest and Consequences for Nature Conservation and Forestry) “Forst und Holz” Nr. 21:619-624. KOUKI, J. (ed.). (1994) Biodiversity in the Fennoscandian boreal forests: natural variation and its management. Annales Zoologici Fennici 31.1. KUULUVAINEN, T. (1994) Gap disturbance, ground microtopography and the regeneration dynamics of boreal coniferous forests in Finland: a review. In Kouki, J. (ed.). Biodiversity in the Fennoscandian boreal forests: natural variation and its management. Annales Zoologici Fennici 31 (1): 35-51 LAWESSON, J. E. / BERTHELSEN, J. P. (1996) Biodiversity and sustainable forest management in Denmark. Sustainable Forest Management, TemaNord 1996:578. Copenhagen. pp. 95-102
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