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
Kari-Anne Njøten Lyng Ingunn Saur Modahl John Morken Tormod Briseid Bjørn Ivar Vold Ole Jørgen Hanssen Ivar SørbySammendrag
Det er ikke registrert sammendrag
Forfattere
Anne BøenSammendrag
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Forfattere
Celine ReboursSammendrag
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Forfattere
Trygve S. AamlidSammendrag
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Forfattere
Dag-Ragnar BlystadSammendrag
Det er ikke registrert sammendrag
Sammendrag
The aim of this study is to see if the raw material influences fixation and leachability of wood preservatives. Moving towards more eco-friendly and –concious society, the wood industries must adjust itself to new rules and regulations. Greener solutions in wood protection are being tested and introduced, older systems are being improved, but questions still arise concerning some elements currently used in wood preservation. Preservatives leaching into the nature is a problem, especially agents that consist copper. Studies have been conducted on the raw material`s influence on impregnability and variations in sapwood penetration have been found. This gives reason to believe that the leaching of wood preservatives is also influenced by the raw material. This study tries to set the variation of leachability of Wolmanit CX-8 and Tanalith into a system, evaluating the origin of a tree and the origin of a sample. The study uses Scots pine (Pinus sylvestris) as a raw material. Material was harvested from different stands in Norway and Denmark. Pine`s sapwood was cut into samples in size of 20x20x50mm. The samples were treated with the wood protection agents Wolmanit CX-8 and Tanalith. The variation in leachability within trees, between trees and between different stands was studied. Within this material, it is possible to trace the individual sample to its original position in the stem. Samples were climatized, impregnated with preservatives and leached according to standard EN84. Copper and boron content in water samples was determined by an ICP (Inductively Coupled Plasma) technique. Comparing leaching results with different variables, correlation was found with latitude and vertical position of the sample, indicating that southern stands leach out more preservative. The lowest part of the tree does not fixate preservatives.
Foredrag – Ornithological tourism as a new line in recreation territories development
Bjørn Frantzen
Forfattere
Bjørn FrantzenSammendrag
A talk of 55 slides that presents bird tourism as such and a brid tourism project in Finnmark, Norway specifically.
Forfattere
Lars NesheimSammendrag
Farm manures are a major source of nitrogen and phosphorus pollution. Excreta from livestock make a significant contribution to atmospheric ammonia emissions and losses of N and P from agricultural land. In order to reduce nutrient emissions from agriculture, it is important to have reliable N and P output standards for the major categories of farm livestock. In Norway the output standards of livestock excreta have not been updated the last 15 years, and the scientific basis for the figures is even older (about 30 years). During that time there have been considerable changes in the Norwegian agricultural production, e.g. the annual milk yield per cow has increased from about 5 500 kg to 7 200 kg. In a report to Norwegian Agricultural Authority the Norwegian Institute for Agricultural and Environmental Research has presented the prevailing Norwegian output standards and the investigations which these standards are based upon (Nesheim et al., 2011). Also output standards from Denmark, Great Britain, Sweden and Switzerland are presented and discussed.
Forfattere
Trygve S. Aamlid Lars Tørres HavstadSammendrag
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Sammendrag
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