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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.

2025

Sammendrag

Plant-based meat analogues (PBMA) are expected to reduce environmental, health, and animal welfare challenges from the production and consumption of meat. This paper investigates PBMA consumption using three rounds of a survey. PBMA consumption in Norway increased from 2017 to 2019 but stagnated in 2022. Several food choice motives and socioeconomic factors affected consumption consistently across the survey rounds. Emphasizing the environment, animal welfare, and novelty were positively associated with PBMA consumption, while emphasizing familiarity and Norwegian origin were negatively associated. Younger, higher educated, urban, and vegetarian respondents were more likely to consume PBMA. Use of social media had a positive effect on the consumption for the total sample, but it was not stable across the survey rounds. Producers, marketers, and other policy makers could promote the environmental and animal welfare benefits along with the novelty aspects of PBMA. The use of domestic ingredients could also appeal to older and rural individuals who emphasize food familiarity.

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Sammendrag

Purpose Losses of phosphorus (P) and carbon (C) from livestock farming impair downstream water quality, requiring a better understanding of their leaching processes. The aim of the study was to examine how leaching of P (total dissolved P – TDP; dissolved reactive P – DRP; dissolved organic P – DOP) and dissolved organic C (DOC) was affected by soil type, chemical property and amendment. Methods Leaching experiments with simulated rain were conducted on five different mineral and organic soils before and after a manure or mineral fertilizer application, respectively. The soils were: Fluvisol, Stagnosol, Umbrisol, Histosol (Ruptic), and Histosol. Profile-long soil columns were used, and chemistry of soil and water samples were studied. Results Before the P addition, the Histosol (Ruptic) soil with high P and organic matter contents but low sorption in the subsoil had significantly greatest flow-weighted mean concentrations (FWMCs) of TDP (315 versus 33‒48 µg L‒1), DRP (215 versus 5‒26 µg L‒1), DOP (101 versus 19‒33 µg L‒1) and DOC (46 versus 8‒25 mg L‒1) in drainage water among all soils. Leaching of DOC varied more than TDP, DRP and DOP across most soils. The manure application significantly elevated FWMCs-TDP in three soils than before the application and led to greater FWMCs-TDP in all soils and FWMCs-DOC in most soils than mineral fertilizer did. The ratios of DRP to DOP and to TDP were significantly correlated to whole-profile degree of P saturation (DPS) of the soils (R2 > 0.9, p < 0.05). Conclusion Sorption/desorption characteristics of subsoils greatly affected concentrations and loads of P and DOC in drainage, as well as the ratios of DRP to DOP and to TDP. Therefore, sorption/desorption characteristics and DPS of subsoils should be included in the work of assessing dissolved P and DOC leaching and developing nutrient mitigation measures.

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Sammendrag

Species’ traits and environmental conditions determine the abundance of tree species across the globe. The extent to which traits of dominant and rare tree species differ remains untested across a broad environmental range, limiting our understanding of how species traits and the environment shape forest functional composition. We use a global dataset of tree composition of >22,000 forest plots and 11 traits of 1663 tree species to ask how locally dominant and rare species differ in their trait values, and how these differences are driven by climatic gradients in temperature and water availability in forest biomes across the globe. We find three consistent trait differences between locally dominant and rare species across all biomes; dominant species are taller, have softer wood and higher loading on the multivariate stem strategy axis (related to narrow tracheids and thick bark). The difference between traits of dominant and rare species is more strongly driven by temperature compared to water availability, as temperature might affect a larger number of traits. Therefore, climate change driven global temperature rise may have a strong effect on trait differences between dominant and rare tree species and may lead to changes in species abundances and therefore strong community reassembly.

Sammendrag

Lagring av løk deles inn i ulike lagringsfaser; tørking, nedkjøling og selve lagringsperioden med stabil temperatur på 0 °C. Ved langtidslagring er stabil temperatur viktig for å hindre vekttap, høy respirasjon, råte og groing. Tørkefasen er viktig del av lagringen og danner grunnlaget for god lagringskvalitet i løken. Lagringstekniske forhold og varighet av tørkefasen kan påvirke utviklingen av bakterieråte og gråskimmel på lager. Det anbefales temperaturer mellom 20 og 30 °C unde r tørking, med høyest temperatur i økologiske løk for å stoppe utvikling av gråskimmel. Med færre tilgjengelige plantevernmidler og tendenser til mer ustabilt klima om høsten kan lagerråter bli en større utfordring i årene som kommer. Ut fra egne forsøk presenteres det her anbefalinger i forhold til tørketemperaturer og relativ luftfuktighet for løk.