Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
1999
Forfattere
M. Kurm Ü. TammSammendrag
Det er ikke registrert sammendrag
Forfattere
Kari Anne Sølvernes Øystein Johnsen Gunnar OgnerSammendrag
The impact of elevated CO2 on height increment, phenology, biomass, and concentration of carbohydrates, pigments and elements in clones of Norway spruce (Picea abies (L.) Karst ) were studied in a three year open-top chamber experiment. The CO2-effect on height increment, biomass, and concentration elements of Silver birch (Betula pendula Roth.) was also recorded. The CO2 concentrations were ambient (380 µmol mol-1), approximately 500 and 700 µmol mol-1 CO2 in the chambers. Additionally, an outside control plot was present. Norway spruce were grown in intact profiles of forest soil and in fertilised peat. Silver birch was grown in forest soil only. Phenology and leader shoot extension were recorded regularly. Element concentrations of leaves and needles were analysed at the end of each growth season. At the end of the experiment, carbohydrate and pigment concentrations were also analysed. The impact of elevated CO2 on Silver birch and Norway spruce was small in this experiment. A marginal increase in biomass were recorded in Silver birch and in Norway spruce grown in fertilised peat. Phenology, concentration of elements, C:N ratio, concentrations of carbohydrates and pigments were almost unaffected by elevated CO2. The largest effect on growth and chemical composition were caused by chambers versus outside control plots and difference in nutrient supply (Norway spruce). Significant higher concentration of Al, Na and Fe were recorded in both species in the outside control plots compare to the plants inside the chambers. The increased concentration of these elements could be caused by a higher dust exposure outside the chambers than inside
Forfattere
Gunnar Jansson P.H. StåhlSammendrag
Det er ikke registrert sammendrag
Forfattere
Sjur BaardsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Severin WoxholttSammendrag
Det er ikke registrert sammendrag
Forfattere
Knut SolbraaSammendrag
Det er ikke registrert sammendrag
Sammendrag
Contamination of atmosphere and soils was found to be accompanied by the active participation of S, Ni, Cu and Fe in the biological cycle in the area adjacent to \"Petchenganickel\" group of smelting works. The content of Ni, Cu and S in pine needles near the works is as high as 0,7-1; 0,4-0,5 and 40-60 mmol/kg respectively, these values for metals being by an order of magnitude higher than those in unpolluted areas. With increase in the age of trees the content of N, P, K, Mg and S in pine needles decreases and the content of Ca, Al, Fe and Mn increases; accumulation of Ni and Cu in pine needles is usually observed near the smelting works.
Forfattere
Bernt-Håvard Øyen E. SkyeSammendrag
Det er ikke registrert sammendrag
Forfattere
Ketil KohmannSammendrag
Det er ikke registrert sammendrag
Forfattere
Berit Skoglund SkåtøySammendrag
Lind (Tilia cordata Mill) Historisk betydning, innvandringshistorie, beskrivelse av treslaget, anvendelse i tidligere tider, lind i landskapet, sykdommer hos lind, fordeler og ulemper ved lind.