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
Environmental research is facing a drastic increase of available high-quality data, not the least due to the eLTER activities. Here simultaneous time series of numerous observables from the atmosphere, soil, streams, lakes and groundwater, etc., and comprising both abiotic and biotic variables will be made available from hundreds of sites. On the one hand quality control of these large data sets becomes a major challenge. On the other hand, though, it opens up completely new options for science as long as some key problems are solved:· How to differentiate between different effects?· How to deal with the filter effects of environmental systems?· How to identify unexpected relationships that a model would not depict?However, environmental sciences still lack a toolbox of approved integrated exploratory data analysis approaches to tackle these challenges in a systematic way. Here we suggest a combination of different methods that proved very efficient both in terms of data quality control and of exploratory data analysis for large sets of time series. Examples will be presented from the AgroScapeLab Quillow (LTER site DE-07-UM, Germany) and the Hurdal ICOS and ICP Forest Level II site (Norway). The Hurdal site is planned to be established as an elTER site as well.Any change of boundary conditions, of input fluxes, emerging invasive species etc. (termed “signal propagation” for short) in environmental systems is subject to filtering effects. A key feature thereof is low-pass filtering. Here we suggest the new Cumulative Periodogram Convexity (CPC) index to quantify the effect size for comparison of various time series. Principal Component Analysis of time series (termed Empirical Orthogonal Function approach in climatology) is suggested as another decisive step. Loadings on single components can be used for assessing the size of single effects on observed time series. Visualization of the communalities and of similarities between different observables and sites in a combination of Self-Organizing Maps and Sammon Mapping allows a rapid survey of some tens to hundreds of time series at a glance, e.g., for quality control. Additional consideration of the CPC index proved a powerful tool for identification of the respective key drivers and of the pathways of signal propagation through environmental systems, comprising both biotic and abiotic observables. Applying machine learning approaches to principal components rather than to the raw data facilitates developing a better understanding of complex interactions in environmental systems. To conclude, we see great potential in a systematic combination of existing approaches deserving to be explored further.
Forfattere
Grete H. M. Jørgensen Quentin Lardy Haldis Kismul Shelemia Nyamuryekung'e Mårten Hetta Mohammad Ramin Vibeke LindSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Anita SønstebySammendrag
Drought stress disrupts plant growth, metabolism, and reproduction, with devastating effects on crop productivity worldwide. Blackcurrant, although rich in health-promoting compounds, is highly vulnerable to water deficits, often producing fewer flowers and aborting developing fruit. Previous transcriptome studies provided only fragmented insights, and no reference genome existed for the Grossulariaceae family until now. Without such genomic tools, identifying precise stress-responsive genes and linking them to metabolite dynamics remained challenging. Based on these challenges, there is a pressing need to conduct integrated genome-scale, transcriptomic, and metabolomic studies to uncover blackcurrant’s drought response mechanisms.
Forfattere
Federico Dragoni Lorraine Balaine Serena Bonizzi Anna Sandrucci Kobe Coorevits David Janke Giorgio Ragaglini Klaus Mittenzwei Lennart Kokemohr Aurélie Wilfart Emma Soulé Joanna Fratczak-Muller Xabier Díaz de Otálora Wilfried Winiwarter Grete H. M. Jørgensen Barbara AmonSammendrag
Poster til GGAA 2025 konferansen
Forfattere
Grete H. M. Jørgensen Quentin Lardy Haldis Kismul Shelemia Nyamuryekung'e Mårten Hetta Mohammad Ramin Vibeke LindSammendrag
Det er ikke registrert sammendrag
Sammendrag
Synthetic plastics of petrochemical origin pose serious health risks to humans and animals, along with creating unwarranted stress on the environment. Recent years have witnessed the enormity of the depletion of natural resources to produce synthetic plastics. Of late, biodegradable bio-packaging materials are gaining attention due to stringent regulations against the usage of single-use plastics and microplastic deposition in the environment. This has led to the development of sustainable, eco-friendly, cost-effective biopackaging materials (mainly biodegradable bioplastics). Though certain drawbacks persist, the use of bio-packaging materials in food industries offers a lower carbon footprint, presents an environmentally friendly solution, and is cost-effective, especially when sustainable sources of raw materials are used. In this regard, agri-food industry-generated biomass/feedstock (wastes and processing by-products) has been explored and efficiently valorized to produce biodegradable plastics. Packaging solutions derived from agri-food wastes and by-products represent an innovative approach to address both resource efficiency and environmental-friendliness and support the circular economy concepts. This chapter aims to provide information on current developments in packaging solutions available in food industries, challenges, and opportunities for the future.
Forfattere
Grete H. M. JørgensenSammendrag
Foredrag for Brønnøysund videregående skole VG1
Forfattere
Grete H. M. JørgensenSammendrag
Presentasjon for skoleklasse 6-9 trinn Tjøtta skole i anledning forskningsdagene
Forfattere
Grete H. M. JørgensenSammendrag
Forelsening til elever ved Polarsirkelen videregående skole i anledning forskningsdagenes arrangement "Bestill en forsker"