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1.湖州师范学院 经济管理学院,浙江 湖州 313000
2.南京财经大学 粮食和物资学院,江苏 南京 210023
Received:26 March 2022,
Revised:27 May 2022,
Published:30 September 2022
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朱强,马海波,敖兴宇,等.高校食堂食物浪费碳足迹估算研究 [J]. 山西农业大学学报(社会科学版),2022,21(5):90⁃98.
ZHU Qiang,MA Haibo,AO Xingyu,et al.Research on carbon footprint estimation of food waste in college canteens [J]. Journal of Shanxi Agricultural University(Social Science Edition),2022,21(5):90⁃98.
朱强,马海波,敖兴宇,等.高校食堂食物浪费碳足迹估算研究 [J]. 山西农业大学学报(社会科学版),2022,21(5):90⁃98. DOI: 10.13842/j.cnki.issn1671-816X.2022.05.011.
ZHU Qiang,MA Haibo,AO Xingyu,et al.Research on carbon footprint estimation of food waste in college canteens [J]. Journal of Shanxi Agricultural University(Social Science Edition),2022,21(5):90⁃98. DOI: 10.13842/j.cnki.issn1671-816X.2022.05.011.
食物浪费问题不仅事关粮食安全问题,而且对环境产生较大的影响,碳排放就是不可忽视的负面效应之一。基于生命周期理论,通过对全国各省(市)30所高校的9660份问卷调查,对大学生在高校食堂就餐时产生的食物浪费碳足迹进行了核算。研究发现,中国大学生每人每餐平均食物浪费碳足迹为0.095千克CO2eq;所有在校生每年产生的食物浪费碳足迹约为193.325万吨CO2eq。食物浪费在原料制造阶段产生的碳足迹为150.794万吨CO2eq,交通运输阶段的碳足迹为3.866万吨CO2eq,食材制作阶段的碳足迹为27.066万吨CO2eq,废弃处理阶段产生的碳足迹为11.599万吨CO2eq。要减少高校食堂产生的碳足迹和形成低碳饮食路径,需要学生、高校、餐饮企业和政府多元主体的共同努力。
Food waste is not only related to food security, but also has a greater impact on the environment. Carbon emissions are one of the negative effects that cannot be ignored. Based on the life cycle theory, this paper calculates the carbon footprint of food waste generated by college students when they eat in college canteens through a survey of 9,660 questionnaires in 30 colleges and universities in various provinces (cities) across the country. The study found that the average food waste carbon footprint of Chinese college students per meal is 0.095kgCO2eq; the annual food waste carbon footprint of all school students is about 1,933,250 tCO2eq. Food waste has a carbon footprint of 1,507,940 tCO2eq in the raw material manufacturing stage, 38,660 tCO2eq in the transportation stage, 270,660 tCO2eq in the food preparation stage, and 115,990 tCO2eq in the waste treatment stage. To reduce the carbon footprint of college canteens and form a low-carbon diet path, the joint efforts of students, universities, catering companies and the government are needed.
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