中国城乡居民食物消费碳排放的对比分析  

Comparative analysis of food consumption on carbon emission of urban and rural residents in China

作　　者：高晶[1] 唐增[1] 李重阳 GAO Jing;TANG Zeng;LI Chong-yang(State Key Laboratory of Grassland Agro-ecosystmes,Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs,College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730020,Gansu,China)

机构地区：[1]兰州大学草地农业生态系统国家重点实验室兰州大学农业农村部草牧业创新重点实验室兰州大学草地农业科技学院,甘肃兰州730020

出　　处：《草业科学》2018年第8期2022-2030,共9页Pratacultural Science

基　　金：兰州大学中央高校基本科研业务费专项资金(lzujbky-2017-43;lzujbky-2017-k01;lzujbky-2017-it14)

摘　　要：为研究食物消费与碳排放的关系,通过对比分析我国城乡居民的食物消费结构,运用综合食物碳排放系数和生命周期过程理论,对城乡居民食物消费引起的碳排放量进行测算对比。研究发现,1)居民食物消费结构的改变对碳排放量起促进作用,且消费同重量的动物性食物所产生的碳排放量高于植物性食物;2)城镇居民食物消费产生的碳排放在总量上高于农村居民且差距由2000年的1.05∶1增大到2014年的1.3∶1;3)居民食物消费产生的碳排放量的增长速度高于食物消费数量的增长速度,其中城镇居民的碳排放量的增长速度达到了食物消费量的4.8倍;4)人均GDP、可支配收入、食物消费支出、食物消费价格指数对城镇居民食物消费碳排放的影响大于农村,但恩格尔系数则对农村居民的影响较大。This study used the comprehensive food carbon emission coefficient and the theory of process life cycle assessment to compare and analyze the carbon dioxide emissions caused by the food consumption of urban and rural residents in China.The results showed that changes in the food consumption structure of residents contribute to the increase of carbon emissions.Carbon emissions from the consumption of animal products are higher than that from botanical foods.Emissions in urban areas were higher than in rural areas,and the gap between the two increased from 1.05∶1 in 2000 to 1.3∶1 in 2014;carbon emissions grew 4.8 times faster than the rise in food consumption.Per capita GDP,household income,food expenditure,and the food consumption price index have a greater impact on consumption in urban areas than in rural areas.However,the Engel coefficient has a greater impact in rural than in urban areas.

关 键 词：城乡居民 食物消费 碳排放 生命周期法 LMDI模型 

分 类 号：X171[环境科学与工程—环境科学]