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FAOSTAT crop to LPJmL crop functional type (CFT) mapping

Source: R/datasets.R
cft_mapping.Rd

Maps FAOSTAT primary-production item codes to WHEP's granular 33-class crop functional type taxonomy and the coarser LPJmL-compatible parent class. Used by build_gridded_landuse() and run_spatialize() to aggregate spatialized crop-level output into named crop functional types.

Usage

cft_mapping

Format

A tibble with one row per mapped FAOSTAT item. Columns:

  • item_prod_code: Integer FAOSTAT item code.

  • item_prod_name: Human-readable FAOSTAT item name.

  • cft_name: Granular WHEP CFT name (33 classes, e.g. "temperate_cereals", "coffee", "oil_crops_oilpalm").

  • cft_lpjml: LPJmL-compatible parent class; one of the 12 LPJmL v6 named crop CFTs or "others".

  • luh2_type: LUH2 crop functional type (c3ann, c4ann, c3per, or c3nfx).

Source

Adapted from LandInG's crop_types_FAOSTAT_LPJmL_default.csv (Ostberg et al. 2023) with WHEP granular extensions.

Details

Only the items listed here reach the grid, so each crop is listed on the code that carries its harvested area. Where build_primary_production() books the area of several co-products on one item (primary_double), that item is the one listed: Coconuts (248), not coconuts in shell (249); Linum (772), not linseed (333) or flax (773); Hemp (776), not hempseed (336) or true hemp (777); Kapok fruit (310), not kapok fibre (778). Linum takes linseed's cft_name and Hemp takes true hemp's, after the product with the larger FAOSTAT harvested area (2010: linseed 2.35 Mha against flax 0.22 Mha; true hemp 0.051 Mha against hempseed 0.005 Mha).

Examples

head(cft_mapping)
#> # A tibble: 6 × 5
#>   item_prod_code item_prod_name cft_name          cft_lpjml         luh2_type
#>            <int> <chr>          <chr>             <chr>             <chr>    
#> 1             15 Wheat          temperate_cereals temperate_cereals c3ann    
#> 2             27 Rice           rice              rice              c3ann    
#> 3             44 Barley         temperate_cereals temperate_cereals c3ann    
#> 4             56 Maize (corn)   maize             maize             c4ann    
#> 5             71 Rye            temperate_cereals temperate_cereals c3ann    
#> 6             75 Oats           temperate_cereals temperate_cereals c3ann