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Characterisation Method Information
Characterisation Method Name:
CO2 impact on crop
Version:
1999
Date Completed:
1999
Principal Method Name:
EPS: Global warming
Method Description:
Model

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).
Notes:

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