Estimate indirect N2O from volatilised ammonia.

Converts the ammonia-N already volatilised (calculate_nh3()'s nh3_n_t) into indirect nitrous oxide (n_fun.r:955-957). Atlantic rows use the flat IPCC EF4 factor (ef4_nh3_to_n2o_atl, 0.016) and touch no emission-factor lookup; Mediterranean rows use the disaggregated n2o_efs_disaggregated ef on (irrig_type, climate) alone (NH3_MgN * N2O_EF), WITHOUT the fertiliser_n2o_modifiers mf that calculate_soil_n2o()'s method = "aguilera" applies to direct N2O.

Usage

calculate_indirect_n2o_nh3(x, example = FALSE)

Arguments

x

A tibble with nh3_n_t, climate and (for MED rows) the irrig_type column n2o_efs_disaggregated is keyed on.

example

If TRUE, return a small fixture instead of computing from x. Defaults to FALSE.

Value

x with n2o_indirect_nh3_n_t appended.

Examples

calculate_indirect_n2o_nh3(example = TRUE)
#> # A tibble: 1 × 3
#>   nh3_n_t climate n2o_indirect_nh3_n_t
#>     <dbl> <chr>                  <dbl>
#> 1     1.1 ATL                   0.0176