Build residue feed availability for feed allocation.

Turns the feed destiny of crop residues into the feed_avail contract consumed by redistribute_feed(): maps each crop to its residue commodity item, applies a feed-availability loss, and aggregates to year / territory / residue item.

Usage

build_residue_feed_avail(x, loss_fraction = 0.15, feed_scale = "national")

Arguments

x

A tibble with item_prod_code, year, sub_territory and residue_feed_dm_t (from calculate_residue_destinies()).

loss_fraction

Fraction of the feed residue lost before intake (default 0.15).

feed_scale

Value for the feed_scale column (default "national").

Value

A tibble with the redistribute_feed() feed_avail columns: year, sub_territory, item_cbs_code, feed_group, feed_quality ("residues"), avail_dm_t and feed_scale.

Examples

tibble::tibble(
  item_prod_code = "15", year = 2000, sub_territory = "ESP",
  residue_feed_dm_t = 50
) |>
  build_residue_feed_avail()
#> # A tibble: 1 × 7
#>    year sub_territory item_cbs_code avail_dm_t feed_group feed_quality
#>   <dbl> <chr>                 <int>      <dbl> <chr>      <chr>       
#> 1  2000 ESP                    2105       42.5 residues   residues    
#> # ℹ 1 more variable: feed_scale <chr>