Calculate a ration component's contribution to carbon dioxide (CO2) emissions from fertilizer manufacture
Source:R/core_model_emissions_ration.R
calc_co2_ration_fertilizer.RdCalculates the contribution of an individual feed component to carbon dioxide (CO2) emissions from fertilizer manufacture 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,as its fraction of diet dry matter intake (fraction). Within each herd_id and cohort, proportions should sum to 1.
- co2_feed_fertilizer
Numeric. Carbon dioxide (CO2) emission factor of a feed component, representing CO2 emissions from fertilizer manufacture in feed production, expressed per kilogram of dry matter intake (g CO2/kg DM).
Value
Numeric. Contribution of an individual feed component to the diet-level average carbon dioxide (CO2) emission factor from fertilizer manufacture in feed production (g CO2/kg DM).
Details
The contribution is computed as:
$$diet\_co2\_feed\_fertilizer = feed\_ration\_fraction \times co2\_feed\_fertilizer$$
This function is part of the run_emissions_ration_module().