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Characterisation Method Information
Characterisation Method Name:
CO2 impact on crop
Date Completed:
Principal Method Name:
EPS: Global warming
Method Description:

The characterisation factor is determined by an empirical method.

As mentioned in YOLL of EPS for CO2 the decrease in wheat production may be in the order of 5%. Today the global crop production (including wheat, rye, barley, oats, corn, rice, sorghum and potatoes) is 2.4 billion tons. If a 5% decrease is assumed for all crop types by the year 2090 the decrease will be 0.12 billion tons per year. An average over the 100- year period is assumed to be 60 million tonnes per year.

The characterisation factor is thus:

60E+11*1.26E16 = 7.56E4 kg crop/kg CO2
Literature Reference:
Parry, Martin. International climate conference at Maastricht, dec 8, 1994, (1994)
Methodological Range:
The impact is of global character. The modelled system is therefore global. The temporal system borders are 100 years (1990-2090). The society affected is the one described in IPCC scenario IS92A. (IPCC, 1990).

Existing Characterisation Factors of CO2 impact on crop
Characterisation Parameter Category Indicator Impact Indication Principle Aspect Substance Quantity Unit Notes
CFactor Crop EPS/2000
Type = Emission
Direction = Output
Media = Air
Geography = *
CO2 7.56E-4 kg/kg Global warming