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.

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1999

– Resin pockets in Norway spruce wood are not caused by the bark beetle Ips typographus

Erik Christiansen, Bohumil Kucera

Rapport fra skogforskningen. Supplement, 12 1999. 9 s.

To document

Authors

Erik Christiansen Bohumil Kucera

Abstract

Kvaelommer fins i mange bartreslekter; de skaper problemer for treforedlingsindustrien, og man vet ikke hvordan de oppstår. De er vanlige i Sørøst-Norge hvor skogen ofte angripes av granbarkbillen, men ikke på Vestlandet hvor billen ikke finnes. Det kunne derfor tenkes at de oppstår som følge av billeangrep. Dette ble undersøkt i et materiale fra Ås i Akershus.Våren 1987 ble et dusin grantrær angrepet av granbarkbillen etter at det var satt feromondispensere på dem, men billene var for få til å erobre trærne. Angrepspunktene på stammen ble merket av, og flere år senere ble trærne felt og undersøkt. Resultatet viste at billeangrepet etterlater tydelige spor i veden hos trær som overlever, men disse er helt forskjellige fra kvaelommene, som derfor må ha en annen årsak.

– The Norwegian monitoring programme for forest damage (OPS). Short overview with results

Dan Aamlid, Kåre Olav Venn

Aktuelt fra skogforskningen, 4/99 1999. 79-82

Authors

Dan Aamlid Kåre Olav Venn

Abstract

No abstract has been registered

– Selective harvesting in uneven-aged spruce forests - damage to advance regeneration and need for supplementary treatments

Oddvar Haveraaen, Dag Fjeld, Aksel Granhus

IUFRO Interdisciplinary Uneven-aged Management Symposium, 15-19 September 1997, Corvallis, Oregon, USA, 1999. 274-287

Authors

Oddvar Haveraaen Dag Fjeld Aksel Granhus

Abstract

No abstract has been registered

– To survive or not survive under global change

G. Eriksson

Aktuelt fra skogforskningen, 3/99 1999. 9

Authors

G. Eriksson

Abstract

No abstract has been registered

Conference lecture – Field trials with lambda-cyhalothrin against carrot flies in Norway

Tor J. Johansen

IOBC/WPRS Working Group Meeting, 1999

Authors

Tor J. Johansen

Abstract

No abstract has been registered

Conference lecture – Genetic variation in Norway spruce

Tore Skrøppa

OECD Workshop "Environmental considerations - Genetically modified trees" , 1999

Authors

Tore Skrøppa

Abstract

No abstract has been registered

Conference lecture – Stability of Norway spruce families and clones under different climatic conditions in the Nordic countries

Tore Skrøppa

SNS Meeting, 1999

Authors

Tore Skrøppa

Abstract

No abstract has been registered

Conference lecture – Effects of the composition of the algal ration on the development of young sea urchins

Celine Rebours, Chantal Billard, Anne Marie Rusig, ...

8th International Conference on Applied Algology: Algae and human affairs in the 21th century, 1999

Authors

Celine Rebours Chantal Billard Anne Marie Rusig Joel Cosson

Abstract

No abstract has been registered

Conference lecture – Airport stormwater treatment in constructed soil filters - A comparative study of aircraft deicers

Roger Roseth, Harald Bjørnstad, Per Kraft, ...

Deicing and dustbinding - Risk to aquifers, 1999

Authors

Roger Roseth Harald Bjørnstad Per Kraft Bill Warner

Abstract

No abstract has been registered

Conference lecture – Degradation of glycol and acetate in sandfilters at low temperatures - laboratory experiments

Per Kraft, Roger Roseth, Harald Bjørnstad

Deicing and dustbinding - Risk to aquifers, 1999

Authors

Per Kraft Roger Roseth Harald Bjørnstad

Abstract

No abstract has been registered

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