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Fertiliser-type modifying factors for direct soil N2O.

Source: R/datasets_balances.R
fertiliser_n2o_modifiers.Rd

Multiplicative modifying factors applied to the disaggregated direct N2O emission factor by fertiliser type and climate zone. They scale the climate-by-irrigation emission factor up or down according to the nitrogen source. Mediterranean factors follow the Cayuela et al. (2017) meta-analysis for synthetic, solid and liquid sources and the IPCC (2019) dry-area values for excreta; Atlantic factors follow the IPCC (2019) wet-area values. Missing factors mark sources whose N2O is not modelled through this pathway in the Mediterranean (recycled organic fertilisers, soil organic matter, urban N).

Usage

fertiliser_n2o_modifiers

Format

A tibble with columns:

fert_type

Nitrogen source: one of "Synthetic", "Solid", "Liquid", "Recycling", "Excreta_cattle_monog", "Excreta_other", "SOM", "Urban".

climate

Climate zone: "MED" or "ATL".

mf

Multiplicative modifying factor on the N2O emission factor; NA where the source is not modelled through this pathway.

source

Provenance note transcribed from the coefficient workbook (Cayuela et al. 2017 or IPCC 2019).

Source

Cayuela, M. L. et al. (2017). Direct nitrous oxide emissions in Mediterranean climate cropping systems. Agriculture, Ecosystems & Environment, 238, 25-35. doi:10.1016/j.agee.2016.10.006 . IPCC (2019), 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Vol. 4, Chapter 11.

Examples

fertiliser_n2o_modifiers
#> # A tibble: 16 × 4
#>    fert_type            climate    mf source                                    
#>    <chr>                <chr>   <dbl> <chr>                                     
#>  1 Synthetic            MED      1    Cayuela et al., 2017                      
#>  2 Solid                MED      0.38 Cayuela et al., 2017                      
#>  3 Liquid               MED      1.7  Cayuela et al., 2017                      
#>  4 Recycling            MED      0    Cayuela et al., 2017, solid organic ferti…
#>  5 Excreta_cattle_monog MED      0.2  IPCC, 2019, dry areas                     
#>  6 Excreta_other        MED      0.3  IPCC, 2019, dry areas                     
#>  7 SOM                  MED      0    Cayuela et al., 2017, solid organic ferti…
#>  8 Urban                MED      0    Cayuela et al., 2017, solid organic ferti…
#>  9 Synthetic            ATL      1.6  IPCC, 2019, wet areas, synthetic          
#> 10 Solid                ATL      0.6  IPCC, 2019, wet areas, other N inputs     
#> 11 Liquid               ATL      0.6  IPCC, 2019, wet areas, other N inputs     
#> 12 Recycling            ATL      0.6  IPCC, 2019, wet areas, other N inputs     
#> 13 Excreta_cattle_monog ATL      0.6  IPCC, 2019, wet areas                     
#> 14 Excreta_other        ATL      0.3  IPCC, 2019, wet areas                     
#> 15 SOM                  ATL      0.6  IPCC, 2019, wet areas, other N inputs     
#> 16 Urban                ATL      0.6  IPCC, 2019, wet areas, other N inputs