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.
2018
Sammendrag
Rapporten viser et temautvalg av bildepar som primært fokuserer på tap av jordbruksareal gjennom nedbygging eller nedlegging, dvs. opphør av jordbruksdrift med påfølgende utbygging til nærings, bolig- eller transportformål, eller gjengroing til kratt og skog. Avslutningsvis fokuseres det også på mulige strategier for å redusere tap av jordbruksareal. Det ligger fra 1 time og 45 minutter til 128 år mellom fototidspunktene.
Forfattere
Bjørn Egil FløSammendrag
Det er ikke registrert sammendrag
Forfattere
Bjørn Egil FløSammendrag
Det er ikke registrert sammendrag
Sammendrag
Når byene utvides mister biene viktige leveområder. Nå skal forskerne undersøke på hvilke måter vi kan ta hensyn til de pollinerende insektene i videre byplanlegging.
Forfattere
Torbjørn Ekrem Roberto Guidetti K. Ingemar Jönsson Łukasz Kaczmarek Terje Meier Elisabeth Stur Tommy Prestø Kristian Hassel Karstein Hårsaker Lasse Topstad Ivar GjerdeSammendrag
Background: The knowledge of Norwegian tardigrades is poor and their diversity, distribution and ecology in Norwegian forests is unknown. This project aims to investigate tardigrade diversity associated with different types of substrates in forests in Norway, evaluate the impact of forestry management practices on tardigrade biodiversity for future conservation policies, and expand the DNA barcode library of Norwegian tardigrades. It will also use environmental barcoding of substrates to test the effectiveness of this method in documenting tardigrade diversity and distribution. Results: We collected three hundred bryophyte-, lichen- and leaf litter samples from various protected deciduous and coniferous forests in Norway in 2017. The vegetation in each sample was identified, mostly to species-level. Tardigrades were extracted from most bryophyte- and lichen samples, and some litter samples. Preliminary analyses show that there are differences in abundance and community composition between both forest- and substrate types. Litter samples show lower abundances than bryophyte and lichen samples, but a higher diversity than expected. Conclusions: Remaining samples still need to be processed, but our preliminary conclusion is that different substrates and forest types host different tardigrade communities. DNA-barcoding will be performed on single specimens of as many of the sampled species as possible and added to the Barcode of Life Data Systems database (BOLD). We expect that DNA metabarcoding of environmental samples from selected localities will record the same diversity as traditional extraction of specimens, but also add information on the presence of species that were undetected.
Forfattere
Anna Avetisyan Anush Panosyan Martina Paponov Ivan Paponov Inger Martinussen Kirsten Krause Zara Harutyunyan Irina Vardanian Andreas Melikyan Manvel Badalyan Tatevik Aloyan Alla Vardanyan Samvel Shoukourian Laura JaakolaSammendrag
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Forfattere
Ramón Fernando Colmenares-Quintero Luis-Fernando Latorre-Noguera Juan-Carlos Colmenares-Quintero Janka DibdiakovaSammendrag
The study carried out here aims to determine the advantage of using in-situ electricity generation facilities versus conventional generators, being evaluated from the environmental point of view. For this, an environmental analysis on the production of CO2 has been applied to two scenarios of electricity generation for a residential building in Medellin city (Colombia). The first one refers to La Sierra thermo-electric plant located in La Sierra, municipality of Puerto Nare, in the Antioquiashire, which is the most efficient plant in Colombian thermal generation. The second comparison scenario refers to the annual operation of a micro-cogeneration facility, which satisfies the building's hot water and electrical energy needs. Using the capabilities of the TRNSYS v17® energy simulation software and the emission equations available in the public domain, the comparative environmental analysis is carried out between one and the other for the same load. The losses in electric transmission are assumed to be 10%. This analysis has shown a difference of more than 50% in emissions generation, with the main cause being the amount of fuel used, which for both cases is natural gas. On the other hand, this study shows the environmental advantages in the use of in-situ generators, decreasing transmission losses.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Tore Krogstad Trond Knapp HaraldsenSammendrag
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Sammendrag
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