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.
2025
Sammendrag
Målet med denne undersøkelsen var å undersøke avlingsnivå og fôrkvalitet gjennom en hel vekstsesong, både i ubeita vegetasjon, men også avlingsutvikling og fôrkvalitet ved gjentatte avbeitinger. Tørrstoffavling og fôrkvalitet ble bestemt ved hvert høstingstidspunkt. Et høyt antall kjente beiteplanter i prøvematerialet indikerer at faktisk nyttbar avling er høy. En total tørrstoffproduksjon på 538 kg TS/daa i høgstaudeeng og 188 kg TS/daa i høgstaudeskog tilsier også at med riktig dyreantall, målrettet beite og kontinuerlig foryngelse av plantematerialet, kan dyrene høste betydelige mengder fôr med tilfredsstillende kvalitet gjennom en hel beitesesong.
Forfattere
Alexander N. Hristov André Bannink M Battelli Alejandro Belanche M.C. Cajarville Sanz G Fernandez-Turren F Garcia Arjan Jonker D.A. Kenny Vibeke Lind S.J. Meale D Meo Zilio Camila Muñoz David Pacheco Nico Peiren Mohammad Ramin L Rapetti Angela Schwarm Sokratis Stergiadis Katerina Theodoridou E.M. Ungerfeld S van Gastelen D.R. Yanez-Ruiz S.M. Waters Peter LundSammendrag
Det er ikke registrert sammendrag
Sammendrag
Drenering vert framheva som eit viktig agronomisk tiltak for auka jordbruksproduksjon på den enkelte gard, samt for å betre klima, miljø og jordkvalitet. Dreneringsaktiviteten har lenge vore lågare enn behovet i norsk jordbruk, og ein ønskjer kunnskap om årsaker til dette. I denne rapporten er det sett på kostnader til drenering i ulike produksjonar og med ulikt dreneringsutstyr. Det er også vurdert lønsemd i drenering under ulike føresetnader. Kartlegging av barrierar for har vore ein sentral del av prosjektet. Viser til eige avsnitt med samandrag i rapporten.
Forfattere
Astrid Brekke Skrindo Heidi Solstad Ruben Erik Roos Ida Marielle Mienna Joachim Paul Töpper Odd Egil Stabbetorp Mathias Andreasen Harald Bratli Åshild Hasvik Ragnhild Heimstad Ulrika Jansson Marte Olsen Siri Lie Olsen Daniel Ingvar Jeuderan Skoog Linn Vassvik Marianne EvjuSammendrag
- overvåking - åpen grunnlendt kalkmark - utvalgt naturtype - Oslofjorden - rødlistearter - fremmede arter - Natur i Norge
Forfattere
Magnus StenbrendenSammendrag
Norsk institutt for bioøkonomi har i 2024 utført vegetasjonskartlegging i deler av Lesja kommune, Innlandet fylke. Kartlagt areal er 75 km². Kartlegginga er gjort etter instruks for kartlegging i målestokk 1:20 000–50 000 (VK25). Det er laget vegetasjonskart og avleda temakart for sau- og storfebeite. Denne rapporten beskriver metode for kartlegging, registrerte vegetasjonstyper og vegetasjonsfordeling i området. Det er gitt en omtale av beiteverdi og beitekapasitet, samt kortfattede råd om skjøtsel og utnyttelse av beitet.
Sammendrag
Norsk institutt for bioøkonomi utførte somrane 2022 og -24 vegetasjonskartlegging av eit areal på 134 km² i Røros kommune. Kartlegginga er gjort etter instruks for kartlegging i målestokk 1:20 000 - 50 000 (VK25). Det er laga vegetasjonskart og 3 avleia temakart for beite for sau og storfe, og barmarksbeite for rein. Denne rapporten beskriv metode for kartlegging, registrerte vegetasjons-typar og deira fordeling i området. Det er gjeve ein omtale av beitekvalitet og beitekapasitet, samt nokre råd kring skjøtsel av kulturlandskap og beite i kartområdet.
Forfattere
Iris Hordijk Lourens Poorter Jingjing Liang Peter B. Reich Sergio de-Miguel Gert-Jan Nabuurs Javier G. P. Gamarra Han Y. H. Chen Mo Zhou Susan K. Wiser Hans Pretzsch Alain Paquette Nicolas Picard Bruno Hérault Jean-Francois Bastin Giorgio Alberti Meinrad Abegg Yves C. Adou Yao Angelica M. Almeyda Zambrano Braulio V. Alvarado Esteban Alvarez-Davila Patricia Alvarez-Loayza Luciana F. Alves Iêda Amaral Christian Ammer Clara Antón Fernández Alejandro Araujo-Murakami Luzmila Arroyo Valerio Avitabile Gerardo A. Aymard C Timothy Baker Olaf Banki Jorcely Barroso Meredith L. Bastian Luca Birigazzi Philippe Birnbaum Robert Bitariho Pascal Boeckx Frans Bongers Olivier Bouriaud Pedro H. S. Brancalion Susanne Brandl Francis Q. Brearley Roel Brienen Eben N. Broadbent Helge Bruelheide Roberto Cazzolla Gatti Ricardo G. Cesar Goran Cesljar Robin L. Chazdon Chelsea Chisholm Emil Cienciala Connie J. Clark David B. Clark Gabriel Colletta David Coomes Fernando Cornejo Valverde Jose J. Corral-Rivas Philip Crim Jonathan Cumming Selvadurai Dayanandan André L. de Gasper Mathieu Decuyper Géraldine Derroire Ben DeVries Ilija Djordjevic Aurélie Dourdain Jiri Dolezal Nestor Laurier Engone Obiang Brian Enquist Teresa Eyre Adandé Belarmain Fandohan Tom M. Fayle Leandro V. Ferreira Ted R. Feldpausch Leena Finér Markus Fischer Christine Fletcher Lorenzo Frizzera Damiano Gianelle Henry B. Glick David Harris Andrew Hector Andreas Hemp John Herbohn Annika Hillers Eurídice N. Honorio Coronado Cang Hui Hyunkook Cho Thomas Ibanez Ilbin Jung Nobuo Imai Andrzej M. Jagodzinski Bogdan Jaroszewicz Vivian Johannsen Carlos A. Joly Tommaso Jucker Viktor Karminov Kuswata Kartawinata Elizabeth Kearsley David Kenfack Deborah Kennard Sebastian Kepfer-Rojas Gunnar Keppel Mohammed Latif Khan Timothy Killeen Hyun Seok Kim Kanehiro Kitayama Michael Köhl Henn Korjus Florian Kraxner Diana Laarmann Mait Lang Simon Lewis Huicui Lu Natalia Lukina Brian Maitner Yadvinder Malhi Eric Marcon Beatriz Schwantes Marimon Ben Hur Marimon-Junior Andrew Robert Marshall Emanuel Martin Olga Martynenko Jorge A. Meave Omar Melo-Cruz Casimiro Mendoza Cory Merow Stanislaw Miscicki Abel Monteagudo Mendoza Vanessa Moreno Sharif A. Mukul Philip Mundhenk Maria G. Nava-Miranda David Neill Victor Neldner Radovan Nevenic Michael Ngugi Pascal A. Niklaus Jacek Oleksyn Petr Ontikov Edgar Ortiz-Malavasi Yude Pan Alexander Parada-Gutierrez Elena Parfenova Minjee Park Marc Parren Narayanaswamy Parthasarathy Pablo L. Peri Sebastian Pfautsch Oliver L. Phillips Maria Teresa Piedade Daniel Piotto Nigel C. A. Pitman Martina Pollastrini Irina Polo Axel Dalberg Poulsen John R. Poulsen Freddy Ramirez Arevalo Zorayda Restrepo-Correa Mirco Rodeghiero Samir Rolim Anand Roopsind Francesco Rovero Ervan Rutishauser Purabi Saikia Christian Salas-Eljatib Peter Schall Dmitry Schepaschenko Michael Scherer-Lorenzen Bernhard Schmid Jochen Schöngart Eric B. Searle Vladimír Seben Federico Selvi Josep M. Serra-Diaz Douglas Sheil Anatoly Shvidenko Javier Silva-Espejo Marcos Silveira James Singh Plinio Sist Ferry Slik Bonaventure Sonké Alexandre F. Souza Hans ter Steege Krzysztof Stereńczak Jens-Christian Svenning Miroslav Svoboda Ben Swanepoel Natalia Targhetta Nadja Tchebakova Raquel Thomas Elena Tikhonova Peter Umunay Vladimir Usoltsev Renato Valencia Fernando Valladares Fons van der Plas Tran Van Do Michael E. Van Nuland Rodolfo Vasquez Martinez Hans Verbeeck Helder Viana Alexander C. Vibrans Simone Vieira Klaus von Gadow Hua-Feng Wang James Watson Gijsbert D. A. Werner Florian Wittmann Verginia Wortel Roderick Zagt Tomasz Zawila-Niedzwiecki Chunyu Zhang Xiuhai Zhao Zhi-Xin Zhu Irie Casimir Zo-Bi Daniel S. Maynard Thomas W. CrowtherSammendrag
Det er ikke registrert sammendrag
Forfattere
Klaus Steenberg Larsen Carl-Fredrik Johannesson Jenni Nordén Holger Lange Hanna Marika SilvennoinenSammendrag
Non-steady-state chambers are widely used for measuring the exchange of greenhouse gases (GHGs) between soils or ecosystems and the atmosphere. It is known that non-steady-state chambers induce a non-linear concentration development inside the chamber after closure, even across short chamber closure periods, and that both linear and non-linear flux estimates are impacted by the chamber closure period itself. However, despite the existence of recommendations on how long to keep the chamber closed, it has been little explored to what extent the length of the chamber closure period affects the estimated flux rates, and which closure periods may provide the most accurate linear and non-linear flux estimates. In the current study, we analyzed how linear regression and Hutchinson and Mosier (1981) modeled flux estimates were affected by the length of the chamber closure period by increasing it in increments of 30 s, with a minimum and maximum chamber closure period of 60 and 300 s, respectively. Across 3,159 individual soil CO2 and CH4 flux measurements, the effect of chamber closure period length varied between 1.4–8.0% for linear regression estimates and between 0.4–17.8% for Hutchinson–Mosier estimates and the largest effect sizes were observed when the measured fluxes were high. Both linear regression and Hutchinson–Mosier based flux estimates decreased as the chamber closure period increased. This effect has been observed previously when using linear regression models, but the observed effect on Hutchinson-Mosier modeled estimates is a novel finding. We observed a clear convergence between the short-period linear regression estimates and the long-period Hutchinson–Mosier estimates, showing that closure periods as short as possible should be used for linear regression flux estimation, while ensuring long-enough closure periods to observe a stabilization of flux estimates over time when using the Hutchinson-Mosier model. Our analysis was based on soil flux measurements, but because the perturbation of the concentration gradient is related to the non-steady-state chamber technique rather than the measured ecosystem component, our results have implications for all flux measurements conducted with non-steady-state chambers. However, optimal chamber closure times may depend on individual chamber designs and analyzer setups, which suggests testing individual chamber/system designs for optimal measurement periods prior to field application
Forfattere
Injeong Kim Lone Ross Gry Alfredsen Olov Karlsson Elif Kaynak Oisik Das Dennis Jones George I. Mantanis Dick SandbergSammendrag
Scots pine (Pinus sylvestris L.) sapwood was modified using maleic anhydride (MA) and sodium hypophosphite (SHP) to improve its durability against wood-deteriorating fungi, mechanical strength, and fire retardancy (thermal stability). The modification significantly reduced mass loss caused by wood-decaying fungi (Trametes versicolor, Rhodonia placenta, and soft rot fungi) due to the formation of cross-links between wood, MA, and SHP, which limited the moisture uptake and altered the chemical structure of wood. On the other hand, the modification did not provide improved resistance to fungi growth on the wood surface, which indicated that the modification had little impact on the accessibility of nutrients on the surface. A bending test showed that the modulus of elasticity (MOE) was not affected by the treatment, whilst the modulus of rupture (MOR) decreased to half the value of untreated wood. Thermal resistance was improved, as demonstrated by micro-scale combustion calorimeter testing, where the total heat release was halved, and the residue percentage nearly doubled. These results indicate that phosphonate protects the modified wood via the formation of a protective char layer on the surface and the formation of radical moieties. Based on the results, wood modified with MA and SHP shows potential for possible use in outdoor, non-loadbearing structures.
Sammendrag
Since the 1950s, the use of plastics in agriculture has helped solving many challenges related to food production, while its persistence and mismanagement has led to the plastic pollution we face today. A variety of biodegradable plastic products have thus been marketed, with the aim to solve plastic pollution through complete degradation after use. But the environmental conditions for rapid and complete degradation are not necessarily fulfilled, and the possibility that biodegradable plastics may also contribute to plastic pollution must be evaluated. A two-year field experiment with biodegradable mulches (BDMs) based on polybutylene adipate terephthalate (PBAT/starch and PBAT/polylactic acid) buried in several agricultural soils in mesh bags showed that also under colder climatic conditions does degradation occur, involving fragmentation after two months and depolymerization by hydrolysis, as shown by Fourier-transform infrared spectroscopy. The phytopathogenic fungus Rhizoctonia solani was found to be associated with BDM degradation, and the formation of biodegradable microplastics was observed throughout the experimental period. Between 52 and 93 % of the original BDM mass was recovered after two years, suggesting that accumulation is likely to happen in cold climatic regions when BDM is repeatedly used every year. Mass loss followed negative quadratic functions, implying increasing mass loss rates over time. Despite the range of climatic and edaphic factors, with various agricultural practices and vegetable productions at the study locations, the parameters that significantly favored in situ BDM degradation were higher soil organic matter content and temperatures.