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.
2024
Forfattere
Atle Wehn HegnesSammendrag
This book analyses the implementation and challenges of using Geographical Indications in Norway. Adapting the modern and global system of Geographical Indications (GIs) to food cultures is a recurring challenge. This text uses Norway as a case study to describe, understand, and explain the socio-cultural adaptation of GIs. The empirical analysis shows that administrators, producers, consultants, and others make a significant effort to adapt the scheme to Norwegian food culture and the food culture to the scheme. Through the development and use of a new conceptual framework, the book continues to show how adaptations occurred and their influence on the development of the Norwegian food culture. The author also reflects upon the status of Norwegian GIs in emerging food cultural contexts related to sustainable and technology change. In summary, this book exhibits the connection between modern global legislative arrangements and traditional local products, providing a springboard for further research on cultural adaptation work of GIs in established and future global food cultures. This book will be of interest to researchers, policymakers, and students in agri-food studies, sociology of food and agriculture, agricultural and rural development, and cultural studies.
2023
Forfattere
Manh-Tien BuiSammendrag
Norway, almost 70,000 tons of civilian explosives will be used, and the explosives used contain approximately 70% ammonium nitrate. From this, a nitrogen loss to water bodies has been calculated to be around 3,000 tons. Increased concentrations of nitrate can therefore be expected. This assignment consists of the evaluation of a biofilter in the Nordlandalen, which is the first in Norway. The biofilter will convert into atmospheric nitrogen. The data used in the assignment comes from the MPS-D8 multiparameter measuring equipment from SEBA, where the loggers come from UnilogCom. The measuring equipment in Nordlandsdalen stands and measures samples continuously and is uploaded to SEBA's pages. It is further supported with weekly samples from Eurofins which are taken every Friday. Physical factors such as water temperature, redox, pH and conductivity are compared to the filter's ability to clean nitrate. Also, different fractions of Tot-N are compared with the degree of purification. The degree of cleanliness of the filter remained relatively good throughout the tunnel test with relatively high values of nitrate in it. Despite periods of severe drought, the degree of purification remained quite high throughout the year but will be expected to change in the event of heavy rainfall and above theoretical operating values. The biggest contributions to the degree of purification in the filter came from water temperature, redox, pH and nitrate. After the summer period, there were major flooding episodes at Nordlandsdalen and caused the level of cleaning to drop. This may be due to physical damage to the filter during the flood period, but this needs to be investigated further. During the flood periods, several of the automatic meters were overwhelmed, as more nitrate came in than the sensors could handle, and there were sensor failures at the start of the year. High concentrations of DOC will lead to increased sensor data errors. Data from the automatic measurements were taken from April-September, in order to disregard corrupt data. With less data, the data resolution will be better, which can tell about the function of the filter. The samples from Eurofins will help to support data from the period April-September, as well as the rest of the year. Where the degree of purification is low, it seems to be able to help with the dosing of methanol. In 2023, the dosage of methanol in the biofilter led to a double increase in the degree of purification. Methanol dosing will also be seen as a possible solution to be able to increase the degree of purification during colder periods. The degree of purification of the filter will be largely dependent on various parameters, such as water temperature, redox, pH and conductivity in order to clean with the highest possible degree of purification. The filter will not only be affected by these parameters, and other factors should not be excluded. Longer operation and thorough monitoring will lead to a clearer picture of the computing capacity of the filter at Nordlandsdalen.
Sammendrag
Et forsøk på å finne tall for hvor mye av avlingspotensialet som går tapt til jordbærsnutebille kan være nyttig i arbeidet med å utvikle forebyggende strategier. Ved å kartlegge forekomst av biller, samt skadeomfang mellom felt av ulike sorter og alder på felt, håper vi å kunne peke på en vei til framtidig redusert skade og økte avlinger
Forfattere
Cornelya KlutschSammendrag
Det er ikke registrert sammendrag
Forfattere
Cornelya KlutschSammendrag
Det er ikke registrert sammendrag
Sammendrag
Fagansvar for tema skogbiologi (>100 artikler) som gir informasjon om skog, skogtyper, skogbruk og skogens biologi til skoleelever, studenter og befolkningen generelt.
Sammendrag
We tested whether windthrow damage to Nordic conifer foreststands could be reliably detected as canopy height decreasebetween a pre-storm LiDAR (Light Detection and Ranging) digitalsurface model (DSM) and a photogrammetric DSM derived froma post-storm WorldView-3 stereo pair. The post-storm ground refer-ence data consisted of field and unmanned aerial vehicle (UAV)observations of windthrow combined with no-damage areas col-lected by visual interpretation of the available very high resolution(VHR) satellite imagery. We trained and tested a thresholding modelusing canopy height change as the sole predictor. We undertooka two-step accuracy assessment by (1) running k-fold cross-validation on the ground reference dataset and examining theeffect of the potential imperfections in the ground reference data,and (2) conducting rigorous accuracy assessment of the classifiedmap of the study area using an extended set of VHR imagery. Thethresholding model produced accurate windthrow maps in dense,productive forest stands with a sensitivity of 96%, specificity of 71%,and Matthews correlation coefficient (MCC) over 0.7. However, insparse and high elevation stands, the classification accuracy waspoor. Despite certain collection challenges during the wintermonths in the Nordic region, we consider VHR stereo satelliteimagery to be a viable source of forest canopy height informationand sufficiently accurate to map windthrow disturbance in foreststands of high to moderate density.
Forfattere
Lars Sandved DalenSammendrag
Fagansvar for tema skogbiologi (>100 artikler) som gir informasjon om skog, skogtyper, skogbruk og skogens biologi til skoleelever, studenter og befolkningen generelt.
Forfattere
Sjur Sandgrind Xueyuan Li Emelie Ivarson Eu Sheng Wang Rui Guan Selvaraju Kanagarajan Li-Hua ZhuSammendrag
The wild species field cress ( Lepidium campestre ) has the potential to become a novel cover and oilseed crop for the Nordic climate. Its seed oil is however currently unsuitable for most food, feed, and industrial applications, due to the high contents of polyunsaturated fatty acids (PUFAs) and erucic acid (C22:1). As the biosynthesis of these undesirable fatty acids is controlled by a few well-known major dominant genes, knockout of these genes using CRISPR/Cas9 would thus be more effective in improving the seed oil quality. In order to increase the level of the desirable oleic acid (C18:1), and reduce the contents of PUFAs and C22:1, we targeted three important genes FATTY ACID ELONGASE1 ( FAE1 ), FATTY ACID DESATURASE2 ( FAD2 ), and REDUCED OLEATE DESATURASE1 (ROD1 ) using a protoplast-based CRISPR/Cas9 gene knockout system. By knocking out FAE1 , we obtained a mutated line with almost no C22:1, but an increase in C18:1 to 30% compared with 13% in the wild type. Knocking out ROD1 resulted in an increase of C18:1 to 23%, and a moderate, but significant, reduction of PUFAs. Knockout of FAD2 , in combination with heterozygous FAE1fae1 genotype, resulted in mutated lines with up to 66% C18:1, very low contents of PUFAs, and a significant reduction of C22:1. Our results clearly show the potential of CRISPR/Cas9 for rapid trait improvement of field cress which would speed up its domestication process. The mutated lines produced in this study can be used for further breeding to develop field cress into a viable crop.
Forfattere
Aasne Jordheim Lars Sandved Dalen Wenche Aale Hægermark Birgitte Kjos Fonn Vigdis Wie TorsteinssonSammendrag
En annonse for fagforfatterstudiet ved OsloMet lokket meg tilbake til skolebenken. Men etter hvert som fokuset skiftet fra skriveprosessen til journalistikk og metode, ble jeg frustrert. Jeg bestemte meg for å finne ut mer om studiet og hva andre tenkte om det.