论文--中国科学院地理科学与资源研究所

论文

论文题目：	Half of the greenhouse gas emissions from China's food system occur during food production
第一作者：	Liu Gang, Zhang Fan, Deng Xiangzheng
联系作者：
发表年度：	2023
摘　　要：	China's food system emitted greenhouse gases equivalent to 2.4 gigatonnes of carbon dioxide in 2019, and half was emitted at the production stage Food systems are responsible for a third of global anthropogenic greenhouse gas emissions and there has been an increasing research focus on food-system greenhouse gases. However, limited attention has been paid to emissions from the regional trade network associated with food systems. Here we developed a multi-regional input-output-based hybrid life cycle assessment model and traced China's food-system greenhouse gas emissions from farm to fork. China's food system emitted 2.4 (95%; confidence interval range: 1.6-3.2) gigatons CO2-equivalent in 2019, and half were emitted at the production stage. There were substantial differences in the emission structure and sources among the provinces. Further analysis indicated that the differences among provinces were caused by the separation of food production and consumption. People living in wealthier coastal and central regions consumed food from western and northeastern regions. Therefore, the government should consider interregional synergies when developing strategies to reduce food-system greenhouse gas emissions.
英文摘要：
刊物名称：	COMMUNICATIONS EARTH & ENVIRONMENT
全文链接：
论文类别：	SCI