27.6.2022
EN
Official Journal of the European Union
L 168/37
EF5 =
0,0075 [kg N2O–N (kg N leaching/run-off) -1]
Yield =
annual fresh yield of the crop (kg ha-1)
DRY =
dry matter fraction of harvested product [kg d.m. (kg fresh weight)-1] (see Table 1)
FracBurnt =
Fraction of crop area burnt annually [ha (ha)-1]
Cf =
Combustion factor [dimensionless] (see Table 1)
RAG =
Ratio of above-ground residues, dry matter to harvested dry matter yield, for the crop [kg d.m. (kg d. m.)-1] (see Table 3)
NAG =
N content of above-ground residues [kg N (kg d.m.)-1] (see Table 1)
FracRemove =
Fraction of above-ground residues removed from field [kg d.m. (kg AGDM)-1]
FVF =
Annual amount of N in sugar cane vignasse and filter cake returned to the field [kg N ha-1], calculated as Yield * 0,000508.
AG =
Above-ground residue dry matter [kg d.m. ha-1]
1.5.2.
Crop and site-specific emission factors for N2O emissions from synthetic fertiliser and organic N application N2O emissions from soils under agricultural use, in different agricultural fields under different environmental conditions and agricultural land use classes can be determined following the Stehfest and Bouwman (2006) statistical model (hereinafter referred to as ‘the S&B model’):
Where: E=
N2O emission (in kg N2O-N ha-1 a-1)
ev =
effect value for different drivers (see Table 2)
The EF1ij for the biofuel crop i at location j is calculated (S&B model) as: EF1ij = (Efert,ij – Eunfert,ij)/Nappl,ij The IPCC (2006) factor (EF1) for direct N2O emissions from fertiliser input based on a global mean shall be replaced by the crop- and site-specific EF1ij for direct emissions from mineral fertiliser and manure N input, based on the crop- and sitespecific EF1ij, applying the S&B model.
Where: Efert,ij =
N2O emission (in kg N2O-N ha-1 a-1) based on S&B, where the fertiliser input is the actual N application rate (mineral fertiliser and manure) to the crop i at location j
Eunfert,ij =
N2O emission of the crop i at location j (in kg N2O-N ha-1 a-1) based on S&B.
The N application rate is set to 0, all the other parameters are kept the same.
Nappl,ij =
N input from mineral fertiliser and manure (in kg N ha-1 a-1) to the crop i at location j