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.
2009
Forfattere
Kirsten TørresenSammendrag
Result from open top chambers with change in temperature, CO2-concentration and irradiance on the frost tolerance of rhizomes of Elymus repens, and roots of Cirsium arvense and Sonchus arvensis are reported.
Sammendrag
Result from open top chambers with change in temperature, CO2-concentration and irradiance on the frost tolerance of rhizomes of Elymus repens, and roots of Cirsium arvense and Sonchus arvensis are reported.
Forfattere
R. Halvorsen T. Andersen H.H. Blom A. Elvebakk R. Elven L. Erikstad G. Gaarder A. Moen P.B. Mortensen Ann Norderhaug K. Nygaard T. Thorsnes F. ØdegaardSammendrag
Det er ikke registrert sammendrag
Forfattere
Samson Øpstad Eva Kittelsen Liv Guri Velle T. Garmo Ann NorderhaugSammendrag
Det er ikke registrert sammendrag
Forfattere
Lise Hatten Ann NorderhaugSammendrag
Det er ikke registrert sammendrag
Forfattere
Håkon BorchSammendrag
Nedbørfelt ligger i kommunene Ski, Ås og Frogn, Oppegård og Nesodden. Vannkvaliteten er ikke tilfredsstillende sett i sammenheng med brukerinteressene, og Vannrammedirektivets krav om "god økologisk status". Denne rapporten vurderer jordbrukets fosforbidrag til vassdragene og muligheter for å redusere utsllippene. Det er gjort beregning av naturlig bakgrunnsavrenning med to like metoder. Beregninger på fosforavrenninger i modellen AGRICAT på dagens drift og ulike scenarier viser at det er et potensiale på å redusere bidraget med opp mot 50%. Videre inneholder rapporten en vurdering av P-AL nivået i jorda.
Forfattere
Arno Rein Ulrich Gosewinkel Karlson Carl Einar Amundsen Stefan TrappSammendrag
Arno Rein (1)(*), Ulrich Gosewinkel Karlson (2), Carl Einar Amundsen (3), Stefan Trapp (1)(1) Department of Environmental Engineering, Technical University of Denmark(2) Department of Environmental Chemistry and Microbiology, National Environmental Research Institute, University of Aarhus, Denmark(3) Bioforsk-Norwegian Institute for Agricultural and Environmental ResearchÅs, Norway(*) arnr@env.dtu.dkTree core sampling provides a new rapid, inexpensive and low-invasive alternative to investigate the extent and temporal development of subsurface contaminations (Trapp et al. 2008). Considering each tree as a combination of well, pump and passive sampler, the analysis of vegetation samples can deliver information on the occurrence of subsurface pollution. This method was repeatedly and successfully applied to delineate subsurface plumes of chlorinated solvents (Larsen et al. 2008). Two persons can sample up to 100 trees per day, and the only necessary equipment is an increment borer and vessels for the samples. At the former waste dumping site Møringa, located at the Oslofjord near Horten, Norway, tree core sampling was done in order to test the methodology for finding heavy metal subsurface pollution. Different tree species were sampled, and the results obtained by ICP analyses were compared to element concentrations (As, Cd, Cr, Cu, Ni, Pb, Zn) in soil obtained from detailed site investigations prior to the tree core sampling campaign (Amundsen et al. 2005). If all tree species were considered together, the correlation between concentrations in tree cores and soil samples was positive, but not significant for any metal. However, samples taken from willow trees (Salix caprea) showed high and significant correlation for arsenic, cadmium and chromium. Furthermore, there was a significant difference in the mean contents (t-test) in wood from the polluted site compared to wood from reference sites. Investigations will continue at the Møringa site and at Danish sites contaminated with heavy metals. The goal is to obtain a rapid but reliable method for screening and monitoring of contaminated sites for subsurface pollution. Amundsen CE, French H, Aasen R, Nordal O. 2005. Supplementary investigations at Møringa waste site, Horten. Risk assessment and remedial action plans (in Norwegian). Jordforsk-report. 19/05. Bioforsk, 1432 Aas, Norway. Larsen M, Burken J, Macháčková J, Karlson UG, Trapp S. 2008. Using tree core samples to monitor natural attenuation and plume distribution after a PCE spill. Environ. Sci. Technol. 42, 1711-1717.Trapp S, Larsen M, Legind CN, Burken J, Macháčková J, Gosewinkel Karlson U. 2008. A guide to vegetation sampling for screening of subsurface pollution. Available at http://homepage.env.dtu.dk/stt/GuidetoVegetationSampling.pdf
Forfattere
Ola HanserudSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Liv NilsenSammendrag
Det er ikke registrert sammendrag