Driving factors of direct greenhouse gas emissions from China’s pig industry from 1976 to 2016

Livestock cultivation is a significant source of greenhouse gas (GHG) emissions, accounting for 14.5% the total anthropogenic emissions. China responsible considerable share global livestock particularly caused by pork production. We used Kaya identity and logarithmic mean Divisia index (LMDI) to decompose national annual GHG emissions from enteric fermentation manure management in pig farming 1976 2016. decomposed sources into five driving factors: (1) technological progress (e.g., feed improvement); (2) structural adjustment sector; (3) agriculture; (4) affluence; (5) population growth. The results showed that net sector increased 16 million tons (Mt) carbon dioxide equivalents (CO2eq) during study period. decomposition analysis revealed agriculture, growing affluence, growth contributed an increase production 23, 41, 13 Mt CO2eq, respectively. changes animal husbandry mitigated –51 –11 Further optimizing economic structures are critical further reducing China’s industry. Our highlight dominant role emission reductions farming.