Modeling global annual N 2 O and NO emissions from fertilized fields

Information from 846 N 2 O emission measurements in agricultural fields and 99 measurements for NO emissions was used to describe the influence of various factors regulating emissions from mineral soils in models for calculating global N 2 O and NO emissions. Only those factors having a significant influence on N 2 O and NO emissions were included in the models. For N 2 O these were (1) environmental factors (climate, soil organic C content, soil texture, drainage and soil pH); (2) management‐related factors (N application rate per fertilizer type, type of crop, with major differences between grass, legumes and other annual crops); and (3) factors related to the measurements (length of measurement period and…