Agricultural Methane Emissions in China: Inventories, Driving Forces and Mitigation Strategies

• DOI: 10.1021/acs.est.3c04209
• Publication Date: 2023-08-30T07:51:19Z
• Authors: Yang Duan; Yueming Gao; Jing Zhao; Yinglan Xue; Wei Zhang; Wenjun Wu; Hongqiang Jiang; Dong Cao
• Keywords: Emission intensity; Emission inventory; Driving factors

Identification of the spatial distribution, driving forces, and future trends agricultural methane (AGM) emissions is necessary to develop differentiated emission control pathways achieve carbon neutrality by 2060 in China, which largest emitter AGM. However, such research currently lacking. Here, we estimated China's AGM from 2010 2020 then decomposed six factors that affect via LMDI model. The results indicated China were 23.39 Tg, with enteric fermentation being source, accounting for 43.9% total emissions. A 39.3% western China. main driver reduction was intensity, 59% 33.7% livestock sector rice cultivation, respectively. Additionally, higher levels urbanization contributed reductions, 31.3% 43.0% cultivation Based on SSP-RCP scenarios, found reduced approximately 90% through a combination technology measures, behavioral changes, innovation policies. Our study provides scientific basis optimizing existing policies not only but also potentially other high AGM-emitting countries, as India Brazil.