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Publications

NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

2002

Authors

Oddvar Skre R. Baxter R.M.M. Crawford T.V. Callaghan A. Fedorkov

Abstract

Modeling studies indicate that if the global warming persists over centuries, the tundra-taiga boundary will move northwards. However, on a regional scale large variations may exist, and in oceanic areas a southwards retreat may also be expected. This tendency is reinforced by human activity, in particular in northern Russia. Local changes over short periods therefore requires continuous observation and monitoring of treeline movement, from an economic as well as forecology and conservation.

Authors

Peder Gjerdrum I. Akerfelds

Abstract

No abstract has been registered

Authors

Guro Brodal

Abstract

No abstract has been registered

Authors

Åshild Ergon Anne-Marte Tronsmo Ingerd Skow Hofgaard

Abstract

No abstract has been registered

Authors

Tor J. Johansen leidulf Lund Jarle Halvard Nilsen

Abstract

No abstract has been registered

Authors

Wim de Vries Gert Jan Reinds H.F. van Dobben D. de Zwart Dan Aamlid P. Neville M. Posch J. Auée J.C.H. Voogd E.M. Vel

Abstract

No abstract has been registered

Authors

Lars Olav Eik Leif Jarle Asheim

Abstract

No abstract has been registered

Authors

Gerd Nilsen Inger Martinussen Arild Ernstsen TV Bhuvaneswari Olavi Junttila

Abstract

No abstract has been registered

Authors

Rolf David Vogt Tom Mortensen Jan Mulder Svein Solberg Wenche Aas

Abstract

No abstract has been registered

Authors

Halvor Solheim Jan-Ole Skage

Abstract

In a greenery trial of Noble fir in western Norway, most branches had good quality until 1994 when 31 % of the branches were discarded. Since then a high level of losses has been noted and 87 % were discarded in 2000. A survey in 1998 revealed that the needle blight fungus Delphinella abietis was the main cause. It seems that frost did not initiate or maintain the disease in the stand, but generally low temperatures may have been important. Discarded branches with the fungus have been left on the ground and have probably been important in maintaining a high level of attack.