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.
2023
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Forfattere
Csilla Farkas Moritz Shore Gökhan Cüceloglu Levente Czelnai Attila Nemes Brigitta Szabó Natalja Čerkasova Rasa Idzelyté Sinja WeilandSammendrag
The H2020 OPTAIN project involves both, catchment-, and field-scale modelling of the transport of water and nutrients. The catchment-scale modelling is performed at fourteen case study catchments across Europe using the SWAT+ model. At seven OPTAIN case studies, field-scale modelling is applied using the SWAP model. The aim of the SWAP modelling is to provide data on soil water balance elements using a more detailed (at field-scale) soil hydrological model and to cross-validate this data with the relevant fields in SWAT+. As the official manual from the SWAP model developers is rather detailed and complex, the OPTAIN SWAP modelling protocol focuses on practical issues, without overwhelming the modellers with information unnecessary for their case-studies. It also describes new tools, such as rswap, developed within the OPTAIN project for reference data quality check, model calibration and visualisation of the model results.
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Soil loss by erosion threatens food security and reduces the environmental quality of water bodies. Prolonged and extreme rainfalls are recognized as main drivers of soil erosion, and climate change predictions for large parts of the world foresee such increases in precipitation. Erosion rates are additionally affected by land use, which may change as a result of the shift from a fossil fuel-based economy to an economy relying on using renewable biomass, a “Bioeconomy”. In this study we aimed at investigating, through modelling, i) if future changes in land use, due to a bioeconomy, would increase the risk for soil loss and enhance suspended sediment yields in streams and ii) if these changes, when combined with climate change effects, would further aggravate suspended sediment conditions in a catchment. We used hydrological and bias adjusted climate models to compare the effect of seven land use pathways on discharge and sediment transport relative to a baseline scenario under present and future climate conditions. The study was carried out based on data from a small headwater stream, representative for cereal production areas of S-E Norway. By modelling our scenarios with the PERSiST and INCA-P models, we found that land use change had a greater influence on both future water discharge and sediment losses than a future climate. Changes from climate showed strongest differences on a seasonal basis. Out of the modelled land use pathways, a sustainable pathway manifested the least occurrence of extreme flood and sediment loss events under future climate; whereas a pathway geared towards self-sufficiency indicated the highest occurrence of such extreme events. Our findings show that careful attention must be placed on the land use and soil management in the region. To maintain freshwater quality, it will be increasingly important to implement environmental mitigation measures.
Forfattere
Marianne Bechmann Lill-Iren Dreyer Kathinka Lang Marianne Stenrød Frederik Bøe Hans Olav Eggestad Anastasija Isidorova Hanne Ugstad Hugh Riley Svein Selnes Therese Mæland Åge MolversmyrSammendrag
Program for jord- og vannovervåking i landbruket (JOVA) ledes av NIBIO divisjon for miljø og naturressurser og gjennomføres i samarbeid med Divisjon for bioteknologi og plantehelse, flere av forskningsstasjonene i NIBIO og andre institusjoner. JOVA overvåker jordbruksdominerte nedbørfelt over hele landet, og feltene representerer ulike driftsformer og ulike jordbunns-, hydrologiske og klimatiske forhold. JOVA rapporterer årlig om jordbruksdrift, avrenning og tap av partikler, næringsstoffer. Tap av partikler og næringsstoffer rapporteres for agrohydrologisk år, 1. mai – 1. mai. Tap av plantevernmidler overvåkes i for fem av feltene og rapporteres for kalenderår.
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