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.
2010
Redaktører
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Sammendrag
Kompetansenettverket hjelper deg! Små matbedrifter og små reiselivsbedrifter med tilknytning til landbruket (færre enn 10 ansatte) kan få tilbud via det Nordnorske Kompetansenettverket for småskala matproduksjon for å lykkes med videre utvikling og verdiskaping. Kompetansenettverket er et landsdekkende tilbud.
Sammendrag
Kompetansenettverket hjelper deg! Små matbedrifter og små reiselivsbedrifter med tilknytning til landbruket (færre enn 10 ansatte) kan få tilbud via det Nordnorske Kompetansenettverket for småskala matproduksjon for å lykkes med videre utvikling og verdiskaping. Kompetansenettverket er et landsdekkende tilbud. Gjennom kontakt med ditt lokale nettverk får du tilgang til kompetanse innen mat over hele landet.
Forfattere
Svein SkøienSammendrag
Det er ikke registrert sammendrag
Forfattere
Eszter Tóth Zoltan Barcza Márta Birkás Györgyi Gelybó József Zsembeli László Bottlik Kenneth J Davis László Haszpra Anikó Kern Natascha Kljun Sándor Koós Györgyi Kovács Attila Stingli Csilla FarkasSammendrag
An overview of carbon dioxide (CO2) exchange and soil respiration measurements is given for representative Hungarian agroecosystems. We present results of long term atmosphere/biosphere CO2 exchange measurements carried out at the Hungarian tall tower site (Hegyhátsál). Tall tower net ecosystem exchange (NEE) measurements provided consistent estimates of landscape-wide carbon dioxide dynamics. During the period of 1997-2008 the region mostly behaved as a net CO2 sink on annual scale. Year-round NEE was in the range of 352±49 g C m 2 year-1 and 43±9 g C m-2 year-1 (negative values indicate uptake). The measurements are representative to a mixture of arable lands with small contribution from other biome types. Effects of different soil tillage methods - applied in two long term tillage experiments (Józsefmajor, Karcag) and in a peach orchard (Vác) - on soil CO2 emission are also introduced. Soil respiration rate highly depended on the depth of soil disturbance and on the date of the measurements; CO2 emissions measured immediately after tillage applications and during the vegetation period showed contradictory tendencies. Results obtained from a newly developed laboratory CO2 emission measurement method indicated strong coherences between soil carbon dioxide fluxes and soil water potential values.
Forfattere
Csilla Farkas Giorgio Alberti János Balogh Zoltan Barcza Márta Birkás Szilárd Czóbel Kenneth J Davis Ernõ Führer Györgyi Gelybó Balázs Grosz N Kljun S Koós A Machon H Marjanovic Zlotan Nagy Alessandro Peressotti Krisztina Pintér Eszter Tóth László HorváthSammendrag
Measurement of biosphere-atmosphere exchange of various greenhouse gases requires different techniques. In case of carbon dioxide the net ecosystem exchange (NEE) is usually measured by the eddy covariance method. In the lack of these measurements in forests the carbon dioxide uptake can be estimated by detecting changes in sequestrated carbon stocks or by using tree growth (dendrometric) measurements. The soil CO2, CH4 and N2O efflux/exchange rates can be determined using in situ chamber techniques, or laboratory incubation measurements. Static and dynamic, manual and automatic chamber methods, as well as photo acoustic, gas chromatography and infrared detections can be used for this purpose. This chapter gives a general overview of the approaches applied in studies presented in this book for evaluating the greenhouse gas exchange between the biosphere and atmosphere.
Sammendrag
Measurements of heat production rate have been made on wood samples with the brown rot fungus Postia placenta at different moisture contents. The results clearly indicate that the heat production rate (a measure of respiration rate and activity) is moisture dependent. When the moisture content is decreased, less heat is produced, and when the moisture content is increased, more heat is produced. Isothermal calorimetry seems to be a measurement technique well suited to the study of rot fungal activity as a function of temperature and moisture content.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
The effects of different production systems on sensory profile and fatty acid composition were examined in a study performed in Northern Norway (65o50"N, 12o28"E) in 2008. One-hundred and fifty Norwegian White Sheep lambs grazed on the same semi-natural pasture with their dams for three months or more. The effect of pre-slaughter fattening on meat quality was compared using a control group of lambs slaughtered directly from the pasture. Four pre-slaughter treatments were established: weaning and indoor-feeding on concentrate and grass silage for either 24 or 44 days before slaughtering (Conc24, Conc44), weaning and grazing on ryegrass (Lolium multiflorum) pasture for the same periods (Rye24, Rye44). Loin samples of M. Longissimus dorsi including the subcutaneous fat over the muscle from fifteen carcasses from each treatment were analysed for sensory attributes and fatty acid composition. A lower intensity of acid taste was observed in meat from lambs in treatment Conc44 compared with meat from lambs in the control treatment. A higher content of the fatty acids C16:0, C18:1n-9 and C18:2n-6 and the n-6/n-3 ratio was related to meat from lambs fed concentrate, while a higher of the fatty acids C18:0, C18:1t-11 and C18:3n-3 was found in meat from grazing lambs.
Forfattere
Agnar KvalbeinSammendrag
En gjennomgang av de ulike mekaniske tiltak som kan gjøres på en fotballbane. Hovedpoenget var at disse tiltakene må være begrunnet i forståelse av gressplantenes vokseform, filtprodukskjon og krav til banekvalitet.