近日，大湾区城市环境安全与绿色发展教育部重点实验室学术带头人梁赛教授团队题为“Global Supply Chain Drivers of Agricultural Antibiotic Emissions in China”的学术论文在国际环境领域顶级期刊Environmental Science & Technology杂志上发表，论文第一作者为杨雪莼博士后，通讯作者为梁赛教授。

 论文DOI：https://doi.org/10.1021/acs.est.1c07110

然而，现有研究主要关注抗生素末端排放和局部地区的抗性基因检测。抗生素排放的全球供应链驱动因素尚未得到系统分析。例如，自然环境及人工环境中抗生素与抗性基因的浓度、分布、迁移已得到广泛研究；大量研究人员从医疗活动、法规、技术和教育等方面讨论了控制抗生素耐药性污染的应对策略。这些研究从末端视角分析抗生素污染和抗生素耐药性问题，但抗生素排放的社会经济驱动因素尚未得到系统分析，全球贸易网络的远程驱动力仍有待揭示。

本研究首次以中国大陆为例，揭示其农业抗生素排放的全球供应链驱动因素。中国是世界上最大的抗生素生产国和使用国，并在国际贸易中发挥关键作用，因此中国农业抗生素排放受到国际贸易的影响。本研究揭示了驱动中国各省农业抗生素排放的热点和关键供应链路径。研究结果可以为抗生素减排提供更明确的方向，本研究的农业抗生素排放核算框架和清单编制方法也为其他国家的抗生素研究提供参考。

英文摘要：

Antibiotic pollution causes serious environmental and social issues. China is the largest antibiotic producer and user in the world, with a large share of antibiotics used in agriculture. This study quantified agricultural antibiotic emissions of mainland China in 2014 as well as critical drivers in global supply chains. Results show that China’s agriculture discharged 4131 tons of antibiotics. Critical domestic supply chain drivers are mainly located in Central China, North China, and East China. Foreign final demand contributes 9% of agricultural antibiotic emissions in mainland China and leads to 5–40% of emissions in each province. Foreign primary inputs (e.g., labor and capital) contribute 5% of agricultural antibiotic emissions in mainland China and lead to 2–63% of emissions in each province. Critical international drivers include the final demand of the United States and Japan for foods and textile products, as well as the primary inputs of the oil seeds sector in Brazil. The results indicate the uniqueness of supply chain drivers for antibiotic emissions compared with other emissions. Our findings reveal supply chain hotspots for multiple-perspective policy decisions to control China’s agricultural antibiotic emissions as well as for international cooperation.