Modelling of natural and management-related effects on nitrous oxide emissions from crop rotations of raw material plants (THG EMOBA)

• Land use-related nitrous oxide emissions are relevant greenhouse gas (GHG) emissions in crop rotations of renewable raw materials (NAWARO) and must be quantified for the evaluation of GHG saving potentials of bioenergy lines • We tested biogeochemical and stochastic modelling approaches developed for the quantification of land-use related nitrous oxide emissions on extensive data sets and applied them to common NAWARO crop rotations in different soil climate zones in Germany • Our sensitivity studies make it clear that the uncertainties of soil data are particularly relevant for the accuracy of modelled nitrous oxide emissions with biogeochemical models. • The scenarios on productivity and GHG emissions calculated throughout Germany show that the GHG reduction potential of bioenergy plants are strongly influenced by weather and soil conditions.