A new framework to estimate spatio-temporal ammonia emissions due to nitrogen fertilization in France.

In France, agriculture is responsible for 98% of ammonia (NH) emissions with over 50% caused by nitrogen (N) fertilization. The current French national inventory is based on default emission factors (EF) and does not account for the main variables influencing NH emissions. To model the spatio-temporal variability of NH emissions due to mineral and organic N fertilization, we implemented a new method named CADASTRE_NH.