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.
2008
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Anne Bøen Arne GrønlundSammendrag
Total waste P flows are of such magnitude that they potentially could serve as a P resource in food production. However, neither waste treatment nor applications of WBPs are optimized for high recycling efficiency today. There is a need for methods to evaluate and communicate about nutrient recycling from waste and substitution rate is one interesting option.
Forfattere
Anne Bøen Arne GrønlundSammendrag
Total waste P flows are of such magnitude that they potentially could serve as a P resource in food production. However, neither waste treatment nor applications of WBPs are optimized for high recycling efficiency today. There is a need for methods to evaluate and communicate about nutrient recycling from waste and substitution rate is one interesting option.
Forfattere
Tormod Briseid Anne BøenSammendrag
Hvordan kan man kan få et marked for avfallsbasert biorest.
Sammendrag
Innblanding av avløpsslam og kompost i stedlige mineraljordmasser kan gi bedre etablering av gras og minske erosjonsrisikoen. Regelverket tillater bruk av et inntil 5 cm tykt lag av avfallsbasert produkt når dette blandes med jorda på bruksstedet. Å utnytte tillatt mengde maksimalt kan for enkelte avfallsbaserte produkter gi uønsket stor vekst første sesong. Nye resultater viser at en bør være særlig forsiktig med å legge ut 5 cm tykke lag avløpsslam ved etablering av grasbakke.
Sammendrag
Climate change and its possible consequences on eroson and nutrient loss from an agricultural catchment in south- eastern Norway is presented.
Sammendrag
This analysis showed that significant differences in hydrology between catchments exist. In addition are large differences in hydrological characters obtained depending on the time resolution of the input data, in which scale, topography and subsurface drainage intensity to a large degree are assumed to be responsible for these differences. It is believed that a thorough understanding of the hydrological flow processes is necessary in the implementation of cost effective river basin management plans and in the selection of adequate measures. This study showed that data collected at the small scale are important in the calibration/validation of models to be used in scenario analysis for implementation of best mangement practices.
Sammendrag
Climate change and its possible consequences on eroson and nutrient loss from an agricultural catchment in south- eastern Norway is presented.
Sammendrag
The results of an analysis of runoff in 17 catchments, located in Norway, Estonia and Latvia are presented. Different parameters, like the coefficient of variation, skewness and kurtosis were calculated in addition to a number of additional parameters describing the hydrology. The calculations were performed on both hourly - and average daily discharges. The obtained results suggest considering the hourly discharges in the interpretation of hydrological processes in agricultural dominated catchments and its possible effects on nutrient and soil loss. In the light of expected climate changes, the hydrological characterisation could provide information about the possible developments in the hydrology and its consequences for nutrient and soil loss processes.
Sammendrag
A characterisation of the hydrological behaviour of four small agricultural catchments in Estonia and Norway was carried out using a flashiness index (FI). FI reflects the frequency and rapidity of short term changes in runoff values. A comparison of FIs based on hourly and average daily discharge indicated large within-day variations over very short time intervals. Large differences were observed between the Norwegian and Estonian catchments, irrespective of whether average daily discharge or hourly discharge values were used. A comparison of the FI and the base flow index (BFI) showed that high FI values corresponded to low BFI values. Norwegian catchments with high FI or low BFI values showed high nutrient losses, whereas the contrary was observed for the Estonian catchments. Although the FI does not a priori give information about the flow processes within catchments, we believe that the FI, as well as the BFI, might be helpful in explaining differences in nutrient and soil losses between catchments.