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.
2007
Forfattere
Eivind Vangdal Lars Sekse Rune SlimestadSammendrag
Innhaldet av antocyanar og total fenolar vart målt i 9 søtkirsebærsortar. Antocyanininnhaldet i mørke frukter var høgare enn i frukter med ljos gul saft. Mellom dei mørke sortane var det nær 10 gonger så mykje antocyanar i sorten med høgast innhald i høve til sorten med lågast. Samla fenolinnhald varierte frå 23 til 168 mg/100g FW, og den antioksiderande kapasiteten var frå 0,44 til 2,67 mmol/100g FW. Det var god korrelasjon mellom den antioksiderande kapasiteten og både antocyanin og totalt fenolinnhald. Søtkirsebærsorten "Agila" hadde høgast innhald av antocyaninar, total fenolar og antioksiderande kapasitet. Hjå plommer fann ein mest antocyaninar i dei mørk blå plommene "Edda", "Souffriau" og "Jubileum". "Victoria hadde minst antocyaninar, men likevel høgast innhald av total fenolar og antioksiderande kapasitet. FRAP-verdiane varierte frå 0,61 til 1,28 mmol/100g FW. Den antioksiderande kapasiteten var nært korrelert med totalt fenolinnhald.
Sammendrag
Quantifying P losses to surface waters at different scales and partitioning of the loads into P losses from point sources and diffuse sources are significant future challenges for river basin managers. The agricultural share of P losses to surface waters is, in many river basins, increasing and therefore becoming more important to quantify and analyse. The importance of phosphorus losses from agricultural land was analysed using monitoring data and two different models for 35 micro-catchments (50 000 km2). Average annual phosphorus loss from agricultural land in the micro-catchments varied from 0.1 to 4.7 kg P ha)1 and showed no relationship with the short-term P surplus on agricultural land. The average annual total P loss from agricultural land showed equally large variation in the 17 macro-catchments (0.1"6.0 kg P ha)1), but the range was less for the 10 larger river basins (0.09"2.0 kg P ha)1). The annual P loss from the 35 micro-catchments was greatest in the micro-catchments characterized by soil erosion and a high proportion of surface run-off as in the Norwegian catchments. The same pattern was true for the 17 macro-catchments where the model-simulated total P loss from agricultural land was greatest in the catchments in northern and southern parts of Europe. The main diffuse pathways for total P loads in the 17 macro-catchments were simulated with the MONERIS model. On average, soil erosion and surface run-off was estimated to have contributed 53% (4.1"81%), groundwater 14% (0.2"41.7%) and tile drainage water 3% (0"14.0%).
Forfattere
Kinga Adam Anne Kristine Søvik Tore Krogstad Arve HeistadSammendrag
Det er ikke registrert sammendrag
Forfattere
Kinga Adam Tore Krogstad Lasse Vråle Anne Kristine Søvik Petter D. JenssenSammendrag
Filtralite P® and shellsand as ideal constructed wetland substrates have been tested for their P sorption capacity, both with batch and column experiments. Two columns were filled with Filtralite P® and one column with shellsand. The shellsand (SSPS) and one of the Filtralite P® columns (FLSP) were loaded with a synthetic P solution, while the second Filtralite P® column (FLWW) was loaded with secondary wastewater. Ca, Mg, pH and the P concentrations were measured in the inlet and the 7 outlets along the height of the three vertical upflow columns for up to 303 days. An overall P removal rate of 92, 91 and 54% was measured in the columns SSPS, FLWW and FLPS, respectively, for the entire experimental period. The comparison of FLWW and FLPS showed that FLWW kept its high P removal efficiency (91%) throughout the experimental period while the removal efficiency of FLPS decreased fast after reaching the 1 ppm effluent P concentration. The competition of other negative ions and the development of biofilm did not have a negative effect on P removal from wastewater. The batch experiments showed a better sorption capacity of Filtralite P® at low initial concentrations, while for high initial concentrations the shellsand sorbed more. Shellsand had, however, a higher sorption capacity in batch experiments with used column material and high initial P concentrations. The results from both the batch and the column experiment suggest that the shellsand has a more durable P sorption capacity than the Filtralite P® material, possibly due to the persistent high concentrations of Ca in the shellsand.
Forfattere
Kinga Adam Tore Krogstad Lasse Vråle Anne Kristine Søvik Petter D. JenssenSammendrag
Filtralite P (R) and shellsand as ideal constructed wetland substrates have been tested for their P sorption capacity, both with batch and column experiments. Two columns were filled with Filtralite PI and one column with shellsand. The shellsand (SSPS) and one of the Filtralite P (R) columns (FLSP) were loaded with a synthetic P solution, while the second Filtralite P (R) column (FLWW) was loaded with secondary wastewater. Ca, Mg, pH, and the P concentrations were measured in the inlet and the seven outlets along the height of the three vertical upflow columns for up to 303 days. An overall P removal rate of 92, 91, and 54% was measured in the columns SSPS, FLWW, and FLPS, respectively, for the entire experimental period. The comparison of FLWW and FLPS showed that FLWW kept its high P removal efficiency (91%) throughout the experimental period while the removal efficiency of FLPS decreased fast after reaching the 1 ppm effluent P concentration. The competition of other negative ions and the development of biofilm did not have a negative effect on P removal from wastewater. The batch experiments showed a better sorption capacity of Filtralite P (R) at low initial concentrations, while for high initial concentrations the shellsand sorbed more. Shellsand had, however, a higher sorption capacity in batch experiments with used column material and high initial P concentrations. The results from both the batch and the column experiment suggest that the shellsand has a more durable P sorption capacity than the Filtralite P (R) material, possibly due to the persistent high concentrations of Ca in the shellsand. (c) 2006 Elsevier B.V. All rights reserved.
Forfattere
Maria HerreroSammendrag
Oppsummering 2004-2006
Sammendrag
In 2004, Phytophthora symptoms were observed on two different fir species used for Christmas trees in Norway. Isolations resulted in a Phytophthora sp. related to P. inundata from relatively newly established nordmann fir (Abies nordmanniana) and P. megasperma from seven-year-old subalpine fir (A. lasiocarpa). The nordmann fir plantation was most severely damaged, with approximately 70% of the trees dead or dying. In the field with subalpine fir, approximately 25% of the trees had yellow or brown foliage and stem canker. Pathogenicity was proven for both Phytophthora isolates on seedlings from their respective host plants. The massive infestation in the nordmann fir plantation approximately one year after planting suggests that the pathogen was introduced into the planting with the transplants. Except for a recent report of P. cambivora on noble fir (A. procera) produced for bough production (17), Phytophthora has never been reported before on fir in Norway.
Forfattere
Anders Often Harald BratliSammendrag
Det er ikke registrert sammendrag
Forfattere
Sølvi SvendsenSammendrag
Betalar du litt ekstra og kjøper pinnekjøt av utegangarsau, såkalla villsau, til jul, medverkar du samstundes til å ta vare på kulturlandskapet knytt til kystlyngheiane, det genetiske mangfaldet og gamle tradisjonar. Kjennarar seier at kjøtet er møyrt, smakfullt og magert. Ved Bioforsk Vest Fureneset er dei i gang med eit prosjekt som skal medverka til å ivareta kystlyngheia ved hjelp av utegangarsauen.
Forfattere
Arnstein StaverløkkSammendrag
Plakatoversikt med bilde, navn, størrelse og habitat på 20 norske marihøner.