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.
2003
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Peder GjerdrumSammendrag
Skip fra våre myter og tidlige historie er kunstferdig fremstilt, og selvsagt i tre. Tre er fleksibelt og allsidig, egnet til krigsskip og frakteskuter, fiskebåter, prammer og flåter. Det mest kjente av alle fartøy tør være Noahs ark, men vi har også våre egne lysende nordiske eksempler. Eventyret forteller om et skip som kunne seile like godt til lands og til vanns. Skipet ble bygd ved eiketømmer - det gjeveste - og magi. En trollmann er byggmester og byggherre er Askeladden; i søvne kunne han høre det `hugg og hamret og tømret og saget og snekret`.
Forfattere
S.C. Corgié Erik Jautris Joner C. LeyvalSammendrag
Rhizodegradation of recalcitrant organic pollutants, such as polycyclic aromatic hydrocarbons (PAH), may benefit from the major role that root exudates have on rhizospheric microbial processes. We investigated the influence of the proximity to ryegrass (Lolium perenne L.) roots on microbial populations and their biodegradation of phenanthrene (PHE) using compartmented pots. PAH degrading bacteria, total heterotrophic bacteria and PHE biodegradation were quantified in three consecutive sections at different distance (03, 36, 69 mm) from a mat of actively exuding roots.A bacterial gradient was observed with higher numbers of heterotrophs and PAH degrading bacteria closest to the roots. In parallel, a PHE biodegradation gradient was evident in the presence of roots. The biodegradation reached 86%, 48% and 36% of initially added PHE, respectively, in the layers 03 mm, 36 and 69 mm from the roots. The biodegradation rate was similar throughout the three layers of the non planted control. The present experimental system seems well suited for spatial and dynamic studies of PAH rhizoremediation.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Atle Hindar Richard Frederic Wright Petter Nilsen Thorbjørn Larssen R. HøgbergetSammendrag
An acidified, 0.8km2 coniferous-forested catchment was limed with 3tha-1 of coarse-grained dolomite powder in September 1994. The liming resulted in an immediate change in runoff water chemistry relative to the stream of an adjacent reference catchment. pH, calcium, magnesium and acid neutralising capacity (ANC) increased and inorganic Al decreased after liming.Potential favourable water quality for sensitive organisms remained relatively constant over the post-liming period (7 years), and model simulations indicate that adequate water quality may last for an additional 4050 years. NO3 concentrations showed no significant change due to liming.A significant increasing trend in TOC was attributed to liming. Concentrations of Cd, Co, Fe, Mn, Ni and Zn were lower in the limed stream than in the reference stream during a period of 3 years after liming, whereas concentrations of As, Cu, and Pb were not significantly different. Steep slopes, thin soils, high amounts of precipitation and thus dominance of surface and subsurface flow in this catchment may explain the rapid response in runoff.During the first 6 years after liming there have been no significant effects on tree growth and vitality (crown density and crown colour). This experiment shows that liming of forested catchments may be a viable method to obtain long-term improvement in water quality and potential positive effects for acid-sensitive aquatic organisms.
Rapport/avhandling – Norway country report on farm animal genetic resources, 2002
Nina Hovden Sæther
Forfattere
Nina Hovden SætherSammendrag
This report presents all livestock production systems in Norway that significantly contribute to the country’s food and agricultural production. It describes the regulatory framework for Norwegian agriculture and aquaculture, as well as characteristics of the country’s production conditions and breeding work. The report discusses national expertise in the field of farm animal genetic resources and future developments regarding the country’s use of these resources. Furthermore, the report presents the conservation of Norway’s historical breeds with small populations. It concludes by making recommendations on which areas both Norway and the Nordic countries should emphasize regarding R&D activities and capacity building..... Genetic resource centre.
Forfattere
R. Ozolincius Kestutis Armolaitis I. Varnagiryte J. ZenkovaiteSammendrag
Det er ikke registrert sammendrag
Forfattere
Per Otto FlæteSammendrag
Den senere tids fokusering på miljøvennlige materialer og innføring av restriksjoner for bruk av enkelte kjemiske trevernmidler har gitt en økende interesse for å utnytte trevirkets naturlige holdbarhet. For de fleste treslag er trevirke av kjerneved mer holdbart enn trevirke av yteved. Og for furu er denne forskjellen stor.
Forfattere
M. Mandre K. Ots J. KlõseikoSammendrag
Det er ikke registrert sammendrag
Forfattere
Per Otto Flæte Birger EikenesSammendrag
Det er ikke registrert sammendrag