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Disaggregated direct soil N2O emission factors by climate and irrigation.

Source: R/datasets_balances.R
n2o_efs_disaggregated.Rd

Direct nitrous-oxide emission factors (fraction of applied nitrogen emitted as N2O-N) disaggregated by climate zone and irrigation type. Atlantic strata use the IPCC Tier 1 default of 0.01 (row irrig_type == "Tier_1"); Mediterranean strata use the Cayuela et al. (2017) meta-analytic factors that resolve the strong effect of water management on N2O. Atlantic non-flooded irrigation rows carry a missing factor because Atlantic strata are routed to the "Tier_1" factor; the Atlantic flooded row keeps its own value.

Usage

n2o_efs_disaggregated

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); NA for Atlantic non-flooded irrigation strata.

Source

Cayuela, M. L., Aguilera, E., Sanz-Cobena, A., Adams, D. C., Abalos, D., Barton, L., Ryals, R., Silver, W. L., Alfaro, M. A., Pappa, V. A., Smith, P., Garnier, J., Billen, G., Bouwman, L., Bondeau, A. & Lassaletta, L. (2017). Direct nitrous oxide emissions in Mediterranean climate cropping systems: emission factors based on a meta-analysis of available measurement data. Agriculture, Ecosystems & Environment, 238, 25-35. doi:10.1016/j.agee.2016.10.006 . Precursor Mediterranean N2O review: Aguilera, E., Lassaletta, L., Sanz-Cobena, A., Garnier, J. & Vallejo, A. (2013). The potential of organic fertilizers and water management to reduce N2O emissions in Mediterranean climate cropping systems. A review. Agriculture, Ecosystems & Environment, 164, 32-52. doi:10.1016/j.agee.2012.09.006 . Atlantic Tier 1 default: IPCC (2019), 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Vol. 4, Chapter 11.

Examples

n2o_efs_disaggregated
#> # A tibble: 12 × 3
#>    irrig_type  climate      ef
#>    <chr>       <chr>     <dbl>
#>  1 Tier_1      ATL      0.01  
#>  2 Rainfed     MED      0.0027
#>  3 Traditional MED      0.0047
#>  4 Drip        MED      0.0051
#>  5 Sprinkler   MED      0.0091
#>  6 Flooded     MED      0.0019
#>  7 Med_average MED      0.005 
#>  8 Rainfed     ATL     NA     
#>  9 Traditional ATL     NA     
#> 10 Drip        ATL     NA     
#> 11 Sprinkler   ATL     NA     
#> 12 Flooded     ATL      0.005