摘要
基于环境投入产出模型、结构路径分析和介数中心性方法揭示了中国餐饮消费驱动的温室气体(GHG)跨产业传导机制(包括重要传导路径和关键控制节点).结果表明:(1)2002~2020年间中国餐饮业GHG足迹在波动中增加.畜牧业→屠宰及肉类加工业→餐饮业→城镇居民消费、畜牧业→餐饮业→城镇居民消费是对餐饮业GHG足迹贡献最大的2条传导路径,种植业、畜牧业、电力热力的生产和供应业是传导路径涉及较多的起点部门.所识别的重要传导路径是餐饮业低碳发展决策的重要抓手.(2)屠宰及肉类加工业、谷物加工业、植物油加工业是餐饮业GHG足迹在产业链中隐含传输的关键控制节点,其2020年传输的隐含GHG规模分别为12.2, 8.0和7.0Mt CO_(2)-eq,应关注这些部门的生产效率提升以降低餐饮业GHG足迹.(3)2002~2020年间谷物加工业、电力热力的生产和供应业等部门的控制节点作用逐渐增强.
Based on the environmental input-output model,structural path analysis,and betweenness centrality method,the inter-sectoral transmission mechanism (including key supply chain paths and critical transmission sectors) of greenhouse gas (GHG)emissions driven by catering consumption in China was uncovered.The results showed that (1) the GHG footprint of China’s catering consumption increased with fluctuations during 2002~2020.The top two supply chain paths with the largest contributions to the GHG footprint of China’s catering consumption were“animal husbandry→slaughtering and meat processing→catering→urban consumption”,and“animal husbandry→catering→urban consumption”.Most of the critical supply chain paths started in the three sectors including cultivation,animal husbandry,and electricity and heat production.The key supply chain paths and related starting sectors were the hotspots of policy decisions on catering industry’s low-carbon development.(2) The top three critical transmission sectors for catering industry’s GHG footprint were slaughtering and meat processing,cereal processing,and vegetable oil processing.In 2020,they transmitted 12.2,8.0,and 7.0Mt CO_(2)-eq of embodied GHG emissions along the catering industry’s supply chains,respectively.More attention should be paid to the productivity improvement in these sectors to reduce the catering industry’s GHG footprint.(3) The transmission roles of cereal processing,and electricity and heat production gradually increased during 2002~2020.
作者
磨昕
钟秋萌
梁赛
ZHONG Qiu-meng;LIANG Sai(Guangdong Basic Research Center of Excellence for Ecological Security and Green Development,Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education,School of Ecology,Environment and Resources,Guangdong University of Technology,Guangzhou 510006,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2024年第9期5321-5328,共8页
China Environmental Science
基金
国家自然科学基金项目(52325005,72293602)
广东省“珠江人才计划”引进创新创业团队项目(2019ZT08L213)。
关键词
餐饮业
温室气体
投入产出分析
结构路径分析
网络分析
catering
greenhouse gas
input-output analysis
structural path analysis
network analysis
