DatabaseNH3 : EOM ammonia emission factor measured with INRAE Caract'Air device (under controlled conditions)

This dataset includes ammonia volatilization measurements led by ECOSYS INRAE with Caract’Air device. Ammonia measurements, based on the principle of a mass balance in dynamic chambers are performed under thoroughly controlled and replicative conditions. Caract’Air was designed to be as close as possible to field conditions (in situ soil cores) while optimizing ambient conditions (temperature, air humidity and soil water content) and exchange conditions (flow rate, head volume, air circulation conditions) (Génermont et al., 2021; Décuq et al., 2023). A variety of EOMs are represented ranging from historic livestock effluents and manure to emerging biowastes produced by human urban and agro-industrial activities, all these biowastes having undergone a variety of treatments: raw, separated, composted, anaerobically stored slurries, farm yard manure, sewage sludges, municipal and domestic wastes; various digestats from mechanization; urine based fertilizers; etc. The types and origins of the EOM are reported. The physico-chemical properties of the EOM as well as soils on which the EOM were applied are detailed, leading to 20 and 30 parameters accompanied by information on analytical methods. Measurement conditions are also described including the application dose, the experimental set duration, the ambient conditions, and also the reproductibily conditions, etc. Finally, ammonia volatilization data are compiled, in terms of total cumulative loss (kg N/ha) or volatilization rates (% N and % N-NH4 applied).