Multi-method wrapper for the grass forage supply ceiling that feeds
allocation. The default lpjml method reads pinned LPJmL-derived
managed-grassland net primary production/availability unless custom artifact
data, a custom artifact path, or run_dir points to local inputs;
coefficient applies a per-area grass-yield coefficient and is not yet
implemented (it needs a grass_yield_coef dataset).
Usage
build_grass_availability(method = c("lpjml", "coefficient"), ...)Arguments
- method
Grass-availability method,
"lpjml"or"coefficient".- ...
Passed to the selected method's builder, e.g.
build_grass_availability_lpjml().
Examples
build_grass_availability(method = "lpjml", example = TRUE)
#> # A tibble: 3 × 7
#> lon lat year grass_npp_gc_m2 grass_avail_dm_t_ha grass_avail_dm_t
#> <dbl> <dbl> <int> <dbl> <dbl> <dbl>
#> 1 9.25 47.8 2000 612. 6.26 16980
#> 2 -55.2 -12.2 2000 488. 4.99 15640
#> 3 35.8 -1.25 2000 422. 4.31 13110
#> # ℹ 1 more variable: method_grass <chr>