The Analysis of Greenhouse Gases Emission of Cropland Sector Applying the 2006 IPCC Guideline

The field of agriculture, forestry, and other land‐use (AFOLU) is concerned with greenhouse emissions of agriculture (crop and livestock), as is the field of land‐use, land‐use change, and forestry (LULUCF). The 1996 IPCC guideline and the 2006 IPCC guideline are used in combination for calculation of greenhouse gas emission from the agricultural sector, and the 2003 IPCC guideline is used for that from the land‐use sector.BR In this research, we analyzed GHG emissions of the cropland sector in AFOLU based on the 2006 IPCC guideline. The results showed that GHG emissions of 1990 was –504 Gg · CO₂-eq, while that of the last year was 2,871 Gg · CO₂-eq. Compared with the 2003 methodology, total emissions according to the 2006 IPCC was lower except in 1997 and 2003. This trend is due to difference of analyzed emission sources, lower default values, and global warming potential by the 2006 IPCC. The results are estimated using limited data at the Tier 1 level and the first issue to be solved is the activity data from the land‐use change matrix. Although this result should be improved, it can be used as the basis for calculating GHG emissions of the AFOLU sector.