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.
2011
Forfattere
John Marshall Bryden Sjur Baardsen Katja Strøm Cappelen Kjersti Nordskog Karen RefsgaardSammendrag
Det er ikke registrert sammendrag
Forfattere
John Marshall Bryden Julie Nåvik Hval Fabio de Menna Kjersti NordskogSammendrag
Det er ikke registrert sammendrag
Populærvitenskapelig – Local Tourism Development
Julie Nåvik Hval, Misty Freeman, Kristin Kovar, ...
Forfattere
Julie Nåvik Hval Misty Freeman Kristin Kovar Karen LandmanSammendrag
Det er ikke registrert sammendrag
Forfattere
Arne Hermansen Merete Wiken Dees Arild Sletten Ricardo Holgado Eldrid Lein Molteberg Tor J. Johansen May Bente Brurberg Ragnhild Nærstad Vinh Hong LeSammendrag
Det er ikke registrert sammendrag
Forfattere
Unni AbrahamsenSammendrag
Markedssortene Faust og Tinker har de siste årene gitt avlinger på omtrent samme nivå. Faust er den tidligste av disse. Tinker har høyere proteininnhold enn Faust. Jetset bør imidlertid være et godt alternativ til begge disse sortene. Linja SW E5053 bør prøves videre.
Sammendrag
In this study, natural polymers were tested as possible alternatives for conventional wood preservative in a two-step process. Scots pine sapwood blocks were impregnated with chitosan, tannin, propiconazole and Wolmanit and oil-treated afterwards with a modified linseed oil. Two different fixation parameters were performed. The treated samples were leached according to EN84. The outcome of trials shows that a two-step process reduces the leaching of the main active components. After leaching, the samples were exposed to fungal attack by Coniophora puteana and Trametes versicolor according to EN113. Mycological tests showed that most of oil treated samples were effective against wood decay.
Sammendrag
The objective of the study was to assess the influence of wood properties on copper leaching from wood treated with preservatives. Scots pine (Pinus sylvestris L.) trees were harvested from two different stands in Norway and one in Denmark. Sapwood was cut to samples (20 x 20 x 50 mm) in as many layers as the radial size allowed. Within this material, it is possible to trace the individual sample to its original position in the stem. Approximately half of the samples were treated with Wolmanit CX-8 and half with Tanalith. All samples were conditioned, impregnated with preservatives and leached according to EN84. Copper and boron content in water samples was determined by an ICP (Inductively Coupled Plasma) technique. The variation in leachability within trees, between trees and between different stands was studied. Statistical analyses showed that trees from the south are more prone to leaching and that samples from the lowest part of the tree fixate less preservative than those from the upper parts. In addition, drying method of the sample had an influence and differences were also noted between products used in the study.
Sammendrag
Top dieback and mortality of Norway spruce is a particular forest damage that has severe occurrences in scattered forest stands in southeast Norway. As a part of a project to study the extent and causes of the damage we are working on an algorithm for automatic detection dead and declining spruce trees for an entire county, - Vestfold. The data set is aerial imagery. The county was covered in 2007. Preliminary tests showed a considerable confusion between dead trees and bare ground. In order to avoid this confusion we have had the imagery automatically processed into a photogrammetric digital surface model (DSM) and true orthophotos. The data set derived from this processing was a 5 layer file, containing blue, green, red, and near-infrared, as well as the height above ground of the canopy height model (a DSM normalized by the terrain height, nDSM)
Forfattere
Merete Wiken Dees Panu Somervuo Erik Lysøe Arild Sletten Jari P. T. Valkonen Arne HermansenSammendrag
Det er ikke registrert sammendrag
Forfattere
Erling Stubhaug Åsmund Erøy Arne Wagle Sigbjørn Leidal Tor Anton Guren Ninni ChristiansenSammendrag
Det er ikke registrert sammendrag