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.
2019
Forfattere
Fasil Eregno Arve HeistadSammendrag
The transmission of pathogens from partially or fully treated wastewater to different water sources are a pervasive risk to public health. To reduce the risk, the integration of source separation, on-site greywater treatment system, and an efficient disposal scheme are the most critical approaches. This study intended to evaluate the removal of nutrient and microbial suspension in the filtration systems used for effluent disposal. The effluent from an on-site greywater treatment plant was loaded into the columns, and the effluent from the columns was monitored for nutrients, total coliform bacteria, Escherichia coli, and Salmonella typhimurium phage 28B (St28B) for one year. Thus, from the range of infiltration systems tested, column-B (15 cm layer of each, Filtralite, fine sand, and till soil) showed the highest removal of total coliforms and E. coli, 3–4 log10 reduction, while the lowest removal observed in column-C (a layer of 25 cm crushed stone and 50 cm till soil), 2–3 log10 reduction. The virus removal efficiency of the columns reduced from 19% to 70% during the simulation of a rainfall event. Moreover, the rise of St28B concentration after rainfall experiment may probably the sign of detachment enhanced by low ionic strength rainwater.
Forfattere
Carrie Joy Andrew Ulf Büntgen Simon Egli Beatrice Senn-Irlet John-Arvid Grytnes Jacob Heilmann-Clausen Lynne Boddy Claus Bässler Alan C. Gange Einar Heegaard Klaus Høiland Paul M. Kirk Irmgard Krisai-Greilhüber Thomas W. Kuyper Håvard KauserudSammendrag
Premise of the Study Fungal diversity (richness) trends at large scales are in urgent need of investigation, especially through novel situations that combine long‐term observational with environmental and remotely sensed open‐source data. Methods We modeled fungal richness, with collections‐based records of saprotrophic (decaying) and ectomycorrhizal (plant mutualistic) fungi, using an array of environmental variables across geographical gradients from northern to central Europe. Temporal differences in covariables granted insight into the impacts of the shorter‐ versus longer‐term environment on fungal richness. Results Fungal richness varied significantly across different land‐use types, with highest richness in forests and lowest in urban areas. Latitudinal trends supported a unimodal pattern in diversity across Europe. Temperature, both annual mean and range, was positively correlated with richness, indicating the importance of seasonality in increasing richness amounts. Precipitation seasonality notably affected saprotrophic fungal diversity (a unimodal relationship), as did daily precipitation of the collection day (negatively correlated). Ectomycorrhizal fungal richness differed from that of saprotrophs by being positively associated with tree species richness. Discussion Our results demonstrate that fungal richness is strongly correlated with land use and climate conditions, especially concerning seasonality, and that ongoing global change processes will affect fungal richness patterns at large scales.
Forfattere
Jørgen Todnem Tor LunnanSammendrag
De senere årene har det blitt mer vanlig med innefôring av kopplam i hele oppalsperioden. Kopplam utgjorde ca. ni prosent av slakta lam i 2017 i sauekontrollen. I dette prosjektet er ulike metoder – innefôring/beiting – for oppal av kopplam sammenlignet med hensyn til tilvekst, slaktekvalitet og økonomisk resultat. Sammenligningene bygger på registreringer hos sju forsøksverter – tre verter med innefôring i hele oppalsperioden og fire verter med beiting etter melkefôringsperioden. Ved sammenligning av ulike beitetyper er i tillegg registreringer foretatt i ett tidligere prosjekt benyttet (Todnem & Johansen 2009)...
Forfattere
Alice BudaiSammendrag
Det er ikke registrert sammendrag
Forfattere
Ellen Johanne SvalheimSammendrag
Det er ikke registrert sammendrag
Forfattere
Ellen Johanne SvalheimSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Annette Folkedal SchjøllSammendrag
Det er ikke registrert sammendrag
Forfattere
Wendy Marie WaalenSammendrag
Det er ikke registrert sammendrag
Forfattere
Till SeehusenSammendrag
Det er ikke registrert sammendrag