Inorganic (mineral) nitrogen fraction of excreted manure by species.
Source:R/datasets_balances.R
manure_inorganic_n.RdFraction of total excreted nitrogen that is in inorganic (ammoniacal) form
and therefore available for ammonia volatilisation, by livestock species
and manure stream (whole excreta, or after separation into a liquid and a
solid fraction). Used by calculate_manner_nh3()'s organic-manure path to
scale the realised emission factor down to the ammoniacal nitrogen actually
applied. The mapping from calculate_manner_nh3()'s manure_type
argument to this table's species/manure_stream keys
(cattle_slurry/pig_slurry to the "Liquid" stream,
FYM to Cattle "Solid", poultry_manure to Poultry
"Solid") is a documented modelling choice made when porting this
table, not a literal Spain_Hist crosswalk; see
calculate_manner_nh3()'s Details.
Format
A tibble with columns:
- species
Livestock species:
"Sheep","Goats","Poultry","Cattle","Pigs","Horses","Donkeys_mules"or"Rabbits".- manure_stream
Manure stream:
"Excreta"(whole, unseparated excreta),"Liquid"or"Solid"(after mechanical separation); not every species has a"Liquid"row.- inorganic_n_fraction
Fraction of the stream's total nitrogen that is inorganic (ammoniacal).
- source
Short author-year provenance string as cited in the Spain_Hist
Livestock.xlsxManure_inorganic_Nsheet for that coefficient. These are secondary citations transcribed from that workbook, not independently DOI-verified full bibliographic entries.
Source
WHEP project-internal coefficient workbook (not a public DOI):
Spain historical livestock coefficient workbook, Livestock.xlsx,
sheet Manure_inorganic_N. That sheet in turn cites: Van Soest, P.
J. (1994); Nahm, K. H. (2003); Nahm, K. H. (2005); Smith, K. A. & Frost,
J. P. (2000); Chambers, B. J. et al. (1999); Chambers, B. J. et al.
(2000); Nicholson, F. A. et al. (1996); Canh, T. T. et al. (1997);
Sommer, S. G. et al. (2004); Burton, C. H. & Turner, C. (2003);
Martinez, J. & Burton, C. H. (2003); Rotz, C. A. (2004); Wheeler, E. F.
et al. (2011); Gungor-Demirci, G. & Demirer, G. N. (2004); Lebas, F.
(1975); Lebas, F. (2004). These secondary citations are transcribed as
recorded in the workbook and have not been independently verified
against the primary sources.
Examples
manure_inorganic_n
#> # A tibble: 19 × 4
#> species manure_stream inorganic_n_fraction source
#> <chr> <chr> <dbl> <chr>
#> 1 Sheep Excreta 0.55 Van Soest (1994)
#> 2 Sheep Solid 0.2 Rotz (2004)
#> 3 Goats Excreta 0.55 Van Soest (1994)
#> 4 Goats Solid 0.2 Rotz (2004)
#> 5 Poultry Excreta 0.7 Nahm (2003)
#> 6 Poultry Liquid 0.6 Smith and Frost (2000); Cha…
#> 7 Poultry Solid 0.325 Nicholson et al. (1996); Na…
#> 8 Cattle Excreta 0.65 Van Soest (1994)
#> 9 Cattle Liquid 0.6 Nahm (2005); Martinez and B…
#> 10 Cattle Solid 0.225 Chambers et al. (2000); Nic…
#> 11 Pigs Excreta 0.6 Canh et al. (1997)
#> 12 Pigs Liquid 0.7 Sommer et al. (2004); Burto…
#> 13 Pigs Solid 0.275 Burton and Turner (2003); S…
#> 14 Horses Excreta 0.4 Wheeler et al. (2011)
#> 15 Horses Solid 0.15 Wheeler et al. (2011); Gung…
#> 16 Donkeys_mules Excreta 0.4 Wheeler et al. (2011)
#> 17 Donkeys_mules Solid 0.15 Wheeler et al. (2011); Gung…
#> 18 Rabbits Excreta 0.35 Lebas (1975)
#> 19 Rabbits Solid 0.15 Lebas (2004)