Calculate a ration component's contribution to nitrous oxide (N2O) emissions from fertilizer use
Source:R/core_model_emissions_ration.R
calc_n2o_ration_fertilizer.RdCalculates the contribution of an individual feed component to nitrous oxide (N2O) emissions from synthetic fertilizer in feed production, using feed-specific emission factors weighted by the component's share in the ration.
Arguments
- feed_ration_fraction
Numeric. Proportion of a specific feed component in the total ration, expressed as its fraction of diet dry matter intake (fraction). Within each herd_id and cohort, proportions should sum to 1.
- n2o_feed_fertilizer
Numeric. Nitrous oxide (N2O) emission factor of a feed component, representing N2O emissions from fertilizer use in feed production, expressed per kg of dry matter intake (g N2O/kg DM).
Value
Numeric. Contribution of an individual feed component to the diet-level average nitrous oxide (N2O) emission factor from fertilizer use in feed production (g N2O/kg DM).
Details
The contribution is computed as:
$$diet\_n2o\_feed\_fertilizer = feed\_ration\_fraction \times n2o\_feed\_fertilizer$$
This function is part of the run_emissions_ration_module().