|Characterisation Method Name:|
|N2O impact on crop|
|Principal Method Name:|
|EPS: global warming pathway and NOx-tranformation pathway|
|Model 1, global warming pathway|
The characterisation factor is determined by an equivalency method using CO2 as a reference.
The global warming potential for N2O on a 100 years basis is 320 (ICCP 1995).
The characterisation factor of CO2 for crop loss is determined in "CO2 impact on crop" to 7.56E–04 kg crop/kg CO2. Therefore the characterisation factor of N2O for crop is 320*7.56E–04 = 2.42E–01 kg crop/kg N2O.
Model 2, NOx-tranformation pathway
The characterisation factor is determined by an equivalency method using NOx as a reference.
In "N2O impact on YOLL", the equivalency factor was determined to 1.35 kg NOx (NO2).
The characterisation factor of NOx for crop is determined in "NOx impact on crop" to 7.00E-01 kg crop per kg NOx. Therefore the characterisation factor of N2O for morbidity is 1.35*7.00E-01 = -0.944 kg crop/kg N2O.
Calculation of characterisation factor
The total characterisation factor is thus 2.42E–01 + 0.944 = 1.19×kg crop/kg N2O.
|Houghton, J.T Jenkins, G.J. and Ephraums, J.J., (Ed.) (1990) Climate change – The IPCC scientific assessment. Cambridge University Press|
|The impact is of global character. The modelled system is therefore global. The temporal system borders are 100 years (1990-2090). The society effected is the one described in IPCC scenario IS92A. (IPCC, 1990).|
|Characterisation Parameter||Category Indicator||Impact Indication Principle||Aspect||Substance||Quantity||Unit||Notes|