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.
2026
Sammendrag
This paper presents a comprehensive study on lightweight cement-bonded composites containing pulp sludge (PS). The objective of the study was to evaluate how the incorporation of perlite (a lightweight volcanic glass aggregate) and lime mud (a pulp mill residue) influences composites’ properties including mechanical strength, insulation and fire resistance. Up to 50% of the cement binder was replaced with PS (by mass), and small fractions of cement (5–15%) were replaced with perlite or lime mud. A suite of analytical techniques, material characterization and mechanical tests with digital image correlation (DIC) for strain analysis were employed. X-ray analysis showed that the aggregates influenced the composite properties to a considerable extent due to their particle sizes and ability to form hydrated gels with cement. Adding 5% of perlite or lime mud yields optimal strength without compromising weight reduction whereas higher aggregate content (15%) led to reduced strength. The DIC system provided insights into strain distribution during loading, confirming enhanced toughness from the fibrous PS. The composites were significantly lighter (732–749 kg/m3) and showed about 30% lower thermal conductivity (0.17 W/mK) than pure cement composites (0.25 W/mK). The normal incidence sound absorption of the composites was about 0.3 at mid-high frequencies due to their compact structure. The composites demonstrated potential for use as sustainable, lightweight construction materials with good acoustic and thermal insulation, as well as acceptable load-bearing capacity for non-structural applications based on EN 634-1/-2 requirements for cement-bonded particleboards.
Forfattere
Erik J. JonerSammendrag
Det er ikke registrert sammendrag
Forfattere
Charlotte Møller Pieter De Frenne J. Mason Heberling Jesse Bellemare Jörg Brunet Hans Henrik Bruun Jacques Cayouette Guillaume Decocq Martin Diekmann Božo Frajman Jenny Hagenblad Per‐Ola Hedwall Bonnie L. Isaac Aino Kalske Jonathan Lenoir Jaan Liira Martí March‐Salas Anne Muola Anna Orczewska Federico Selvi Brandon Wheeler Marcel Sieck Hagen von Klopotek J. F. ScheepensSammendrag
Aim Widespread species encounter a range of variable climates that can lead to intraspecific trait clines. Such clines can be the result of phenotypic plasticity, genetic differences, or both. Although latitude often explains a large part of trait variation, it is crucial to investigate the underlying environmental variables to understand current and future trait responses. Cross‐continental comparisons of species that are native on multiple continents provide a rarely used approach that can help identify the environmental drivers of intraspecific trait clines. Location Europe and North America. Time Period 2021–2023. Major Taxa Studied Milium effusum L. (Poaceae). Methods To quantify the influence of environmental gradients on functional traits across geographical regions that vary in climate, we sampled M. effusum seeds from 23 European and 14 North American populations and transplanted them in a common garden. We measured 10 vegetative, reproductive, and phenological traits. We used 30‐year averages of 19 bioclimatic variables, while accounting for the latitudinal and elevational position of the population origins, to compare the trait‐environment relationships between continents. Results Our results showed that European populations occupy a broader climatic range than North American populations. Differences between continents were found in most of the traits as well as in the multivariate trait space. The traits were affected more by bioclimatic variables than by latitude or elevation. While flowering, leaf thickness, specific leaf area, and reproductive height showed parallel clines to the environment between continents, vegetative height and biomass showed contrasting clines. Main Conclusions Environmental influences from population origins revealed parallel clines between the continents for functional traits, suggesting shared selective pressures, while contrasting clines for plant size indicated different evolutionary trajectories, potential bottlenecks, or interactions with unknown ecological factors. This study highlights the complex interplay of genetic, environmental, and evolutionary factors in shaping phenotypic variation in native species across continents.
Forfattere
Kateřina Hamouzová Pavlína Košnarová Madhab Kumar Sen Soham Bhattacharya Michaela Kolářová Lena Ulber Dagmar Rissel Björn Ringselle Wiktoria Kaczmarek-Derda Pavel Hamouz Josef SoukupSammendrag
Tripleurospermum inodorum (L.) Sch. Bip. is a widespread weed in cereal production systems across Europe and has evolved resistance to acetolactate synthase (ALS)‐inhibiting herbicides in several Northern and Central European countries. This study identified and characterised resistance to the ALS‐inhibiting herbicides tribenuron‐methyl and florasulam in eight populations of T. inodorum from the Czech Republic, Germany, Norway and Sweden. The two Czech populations, with Pro‐197‐Gln + Pro‐197‐Ala substitutions in one population (CZ1) and a Pro‐197‐Thr substitution in the second population (CZ2), differed in their response to tribenuron‐methyl: CZ1 showed low resistance (resistance factor, RF: 5.2), while CZ2 exhibited high resistance (RF: > 53). However, both showed similar and low resistance to florasulam (RF: 2.5 and 3.9, respectively). The two German populations also showed contrasting responses: one population, with a Pro‐197‐Leu substitution, exhibited low resistance to both ALS inhibitors (RF: 2.8 for tribenuron‐methyl and 3.3 for florasulam), whereas the other population, with a Pro‐197‐Thr substitution, displayed high resistance to both herbicides (RF: > 53 and 12.9, respectively). Norwegian populations with a Pro‐197‐Tyr substitution and Swedish populations with Pro‐197‐Thr or Pro‐197‐Gln substitutions exhibited high resistance to tribenuron‐methyl (RF: 15.2–> 53), but only low resistance to florasulam (RF: 2.5–4.8). Geographic patterns in substitution types were evident, with Nordic populations predominantly exhibiting polar substitutions and Central European populations showing a mix of polar and non‐polar substitutions, suggesting divergent resistance evolution pathways. Notably, except for the Pro197Gln mutation, all other identified mutations have not been previously reported in T. inodorum . Overall, these results highlight the need for region‐specific resistance management strategies.
Forfattere
Anders BrynSammendrag
Foredrag om spesifikke utfordringer ved overgangen til ny instruks for kartlegging av naturtyper
Forfattere
Sebastian EiterSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Ove BergersenSammendrag
Rapporten gir oversikt over miljøanalyser for ORIGO Skibotn sitt deponi og komposteringsanlegg. Temperaturovervåking av kompostrankene fungerer når de har oppnådd hygieniseringstemperatur i 4 uker og sikrer kontrollen av de aktive rankene på fase 1 når de bør vendes og flyttes til fase 2. Analyser på blandprøve av ferdigsiktet kompost er analysert i 2025. Komposten blir benyttet inne på anlegget. Det blir fortsatt registrert dager med lukt, og nytt fra 2025 er ekstra registreringer i sentrum av Skibotn (Sone 1) som blir sammenstilt med Sone 3 i utkanten. En reduksjon av totalt antall dager med registrert lukt i Sone 3 fra 30 i 2024 til 24 dager i 2025 er observert. Sone 1 i sentrum av Skibotn har totalt 14 registreringer. Analyser av sigevann fra deponi og kompostaktiviteten samt vann fra sedimenteringsdam og grunnvann fra miljøbrønner er vurdert i 2025. Tidligere økning i konsentrasjoner, næringsstoffer og organisk materiale i sigevann fra deponi og kompostering renset i rensebasseng før 2 sedimenteringsdammer, viser en reduksjon i 2025. Vannanalyser etter infiltrasjon målt i grunnvann ved nærmeste miljøbrønn 3 viste fortsatt reduksjon i konsentrasjoner av både næringsstoffer og metaller. PFAS22 ble påvist i deponisigevannet (3,3 μg/l). Spor av fluororganiske forbindelser ble også observert i sedimenteringsdam og miljøbrønn 3, men i lavere konsentrasjoner (0,7 og < 0,4 μg/l). Analyser av overflatevann oppstrøms og nedstrøms anlegget viste ingen tegn til forurensning. Det er ikke synlige forurensinger (rustbrune jernutfellinger) ved elvebredden av grunnvann som strømmer ut i Skibotnelva.
Sammendrag
Rapporten foreslår en plan for utplanting og oppfølging av in vitro (asymbiotisk) oppformerte individer av de truede orkidéartene søstermarihand (Dactylorhiza sambucina) og honningblom (Herminium monorchis) i Norge. Den sammenfatter kunnskap om artenes spredning og genetikk, forvalting av og erfaringer med utplanting av truede orkidéarter internasjonalt, samt vurderinger av aktuelle mottakslokaliteter i Norge. Med utgangspunkt i nasjonale og internasjonale retningslinjer presenteres anbefalte strategier for bevaringsutsetting og videre oppfølging. Siden 2019 har NIBIO Landvik, med støtte fra Miljødirektoratet og i samarbeid med orkidéekspert Svante Malmgren (Sverige), drevet in vitro-oppformering av planter for utplanting.
Forfattere
Eirik Inge Mikkelsen Cornelya Klutsch Gunnar Sander Patrick Berg Sørdahl Ingrid Kvalvik Sigrid Engen Charlotte Teresa Weber Camilla Carlsten Mittenzwei Vito De LuciaSammendrag
Det er ikke registrert sammendrag