Marianne Bechmann
Research Professor
(+47) 412 19 506
marianne.bechmann@nibio.no
Place
Ås O43
Visiting address
Oluf Thesens vei 43, 1433 Ås
Attachments
CV per September 2018Biography
Authors
Jian Liu Hilmar Tor Sævarsson Marianne Bechmann Tore Krogstad Tomas Persson Anne Falk ØgaardAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Jian Liu Faruk Djodjic Barbro Ulén Helena Aronsson Marianne Bechmann Lars Bergström Tore Krogstad Katarina KyllmarAbstract
No abstract has been registered
Division of Environment and Natural Resources
Mitigation measures for phosphorus and nitrogen under changing climate: conflicts and synergies
Nutrient concentrations, loads and stoichiometry (i.e., N:P ratio) in agricultural runoff affect the quality of surface waters. In Norway, the reduction of nutrient runoff is challenged by the sloped landscape, variable weather and changing climate with an increasing number of extreme hydrological events. Mitigation measures for reducing nutrient losses are pressingly needed but they do not always work simultaneously or equally for both N and P, due to the differences in their agronomic and biogeochemical characteristics and dominant transport pathways. In support of decision-makers and farmers’ selection of effective mitigation measures, this project aims to increase the knowledge base on how nutrient, soil, crop, water and landscape management options affect P and N losses in runoff as well as N:P stoichiometry similarly or differently under variable weather conditions and changing climates, and to identify effective mitigation measures with climate-adaptation potential. The project will be conducted through an inventory, analysis and synthesis of available data in Norway to demonstrate how/where/when different management options have worked in reducing N and P concentrations and loads and changing N:P ratios, and potential conflicts and synergies in N and P reductions. The project will provide suggestions on mitigation measures that can be used by farmers for simultaneously reducing both N and P.
Division of Food Production and Society
ECONUTRI
Innovative concepts and technologies for ECOlogically sustainable NUTRIent management in agriculture aiming to prevent, mitigate and eliminate pollution in soils, water and air
Division of Food Production and Society
Agricultural mitigation measures and the value of water quality improvements
Agriculture is one of the main sources of water pollution in Norway, and an important contributor to GHG emissions.