Skip to contents

IPCC 2006 Tier 1 direct soil N2O emission factors by climate and irrigation.

Source: R/datasets_balances.R
n2o_efs_ipcc2006.Rd

Direct nitrous-oxide emission factors (fraction of applied nitrogen emitted as N2O-N) under the IPCC 2006 Guidelines Tier 1 defaults, disaggregated by irrigation/management stratum and climate zone. Unlike n2o_efs_disaggregated() (the Cayuela et al. 2017 meta-analytic Mediterranean factors plus the IPCC 2019 Atlantic default), every stratum here carries the flat IPCC 2006 default (0.010), except flooded rice (0.003) in both climate zones. Used by calculate_soil_n2o()'s method = "ipcc2006".

Usage

n2o_efs_ipcc2006

Format

A tibble with columns:

irrig_type

Irrigation / management stratum: one of "Tier_1", "Rainfed", "Traditional", "Drip", "Sprinkler", "Flooded", "Med_average".

climate

Climate zone: "MED" (Mediterranean) or "ATL" (Atlantic).

ef

Direct N2O emission factor (kg N2O-N per kg applied N).

Source

WHEP project-internal coefficient workbook (not independently DOI-verified): N_coefficients.xlsx, sheet N2O_EFs_IPCC2006, itself transcribed from IPCC (2006), 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Vol. 4, Chapter 11, Tier 1 defaults.

Examples

n2o_efs_ipcc2006
#> # A tibble: 12 × 3
#>    irrig_type  climate    ef
#>    <chr>       <chr>   <dbl>
#>  1 Tier_1      ATL     0.01 
#>  2 Rainfed     MED     0.01 
#>  3 Traditional MED     0.01 
#>  4 Drip        MED     0.01 
#>  5 Sprinkler   MED     0.01 
#>  6 Flooded     MED     0.003
#>  7 Med_average MED     0.01 
#>  8 Rainfed     ATL     0.01 
#>  9 Traditional ATL     0.01 
#> 10 Drip        ATL     0.01 
#> 11 Sprinkler   ATL     0.01 
#> 12 Flooded     ATL     0.003