LCA Food 2012 in Saint Malo, France! - Manifestations et colloques ...

PARALLEL SESSION 2C: QUANTIFICATION AND REDUCTION OF UNCERTAINTY 8 th Int. Conference on LCA in the
Agri-Food Sector, 1-4 Oct 2012
I-1
Foreign material
factory
Figure 1. Generation of transportation scenarios in the case of chemical fertiliser production. T: transport
stage, I: input, and O: output.
3. Results
3.1. Production technology
There were no significant differences between the case with the adapted LCI data for chemical fertilisers
and that with the original fertiliser data from ecoinvent. Similar results were obtained in the case of pesticides.
3.2. Production location
T-1
Foreign fertiliser
factory
Lack of information on transportation scenarios caused uncertainty (Fig. 2). However, the relative superiority
among conventional, environmentally friendly, and organic rice cultivation remained unchanged.
Figure 2. Greenhouse gas (GHG) emissions of the three production systems with uncertainty due to indeterminacy
of transportation scenarios in the case of chemical fertiliser production (kg CO2 eq./kg). From the left
(in the boxes): the domestic production scenario, the national average scenario, and the import scenario.
3.3. Verbal expressions as scenarios
O-1
Foreign material
factory
T-2 T-2
Foreign port Foreign port
T-3 T-3
Domestic port Domestic port
Ecoinvent process
Japan specific process
Domestic material
factory
T-4 T-5
I-2 Domestic fertiliser factory
O-2
T-4 T-6
Import scenario
Organic
Environmentally friendly
Conventional
Regional storehouse
0.5 0.6 0.7 0.8 0.9 1.0
Domestic production scenario
Uncertainty due to the lack of the specifications was larger than that due to the scenario indeterminacy
described above (see Fig. 3). The relative superiority between environmentally friendly and organic cultivation
was indeterminable.
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