抄録
Objective. Carbon footprint calculation of rice (Variety: Koshihikari made in Shiga Prefecture) is introduced in this report. This CFP calculation is done to discuss the procedures for environmental declarations and to find the reducing points of GHG emissions.
Results and discussion. The primary data on cultivation process was collected from more than 100 farmers. The CFP was 7.7 kg CO2-eq per a package of 4 kg milled-rice, and this includes GHG emissions from material procurement, through production process to the end of life stage. CH4 emission from paddy field has the highest proportion in this CFP result. The GHG emission from distribution stage was 6%.
Conclusion. The sampling method based on a statistics approach is necessary for a lot of number of small farmers to quantify CFP easily. As for the reduction of CH4 emission from the paddy field, expertise needs to be accumulated for ensuring inhibition of cadmium absorption and biodiversity in the field without trade- off among environmental problems.
