Smil (2001) global synthetic nitrogen production, 1913-2000

Global synthetic-nitrogen production anchors from Smil (2001) "Enriching the Earth", Tables 5.2 and 5.3, cross-checked with Smil (2002) Ambio 31:126-131. Anchor years span 1913 (first commercial Haber-Bosch plant at BASF Oppau) to 2000. Used by prepare_nitrogen_inputs() to backcast country-level synthetic N for the pre-FAOSTAT period (years before 1961): the temporal shape is taken from this global series and downscaled to each country using its 1961-1965 share of global FAOSTAT synthetic N.

Pre-1913 values are treated as zero by the consumer and are not stored here.

Usage

smil_2001_synthetic_n_global

Format

A tibble with one row per anchor year:

• year: Integer anchor year (1913, 1920, 1925, ..., 2000).

• global_kt_n: Global synthetic-N production in kt N.

Source

Smil, V. (2001) Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production, MIT Press. Tables 5.2 and 5.3.

Examples

head(smil_2001_synthetic_n_global)
#> # A tibble: 6 × 2
#>    year global_kt_n
#>   <int>       <dbl>
#> 1  1913           7
#> 2  1920         155
#> 3  1925         430
#> 4  1930        1900
#> 5  1935        1700
#> 6  1940        3000