Integrating field, mesocosms, and laboratory approaches to characterise denitrification-driven nitrous oxide hot moments in European wetlands

Abstract A substantial part of terrestrial nitrous oxide (N 2 O) emissions originates from denitrification in wetlands, and this contribution is expected to rise with ongoing land-use changes, such as wetland drainage, agricultural conversion, and peatland degradation, as well as under global warming. Capturing the spatial and temporal dynamics of N 2 O emissions through measurements and numerical modelling remains challenging, as extreme N 2 O peaks occur during short-lived transient events (ho