减少食物浪费是保障粮食安全、缓解全球气候变暖的重要举措.基于中国健康与营养调查(CHNS)和中国食品生命周期评估数据库(CFLCAD),从南北主食差异这一视角出发,基于生命周期理论分析中国居民家庭的食物浪费碳足迹.研究发现,中国居民家庭人均日食物浪费碳足迹为62.255 g CO2 eq.相比以小麦为主食的北方家庭(人均食物浪费碳足迹为53.704 g CO2eq/d),以大米为主食的南方家庭有着更高的人均食物浪费碳足迹(69.628 g CO2eq/d).此外,显著影响家庭食物浪费碳足迹的还有户主年龄、主要女性成员年龄、主要女性成员受教育年限、家庭人口规模与结构、收入水平、储藏条件和膳食知识、家庭类型等变量.
The Impact of North-South Staple Food Differences on the Carbon Footprint of Household Food Waste:A Study Based on Empirical Evidence from CHNS
Reducing food waste is an important measure to ensure food security and mitigate global warming.Based onChina Health and Nutrition Survey (CHNS)and China Food Life Cycle Assessment Database (CFLCAD),this paper adopts the life cycle theory to analyze the carbon footprint of food waste in Chinese households from the perspective of north-south staple food differences.It is found that the carbon footprint of food waste per capita in Chinese households was 62.255 g CO2eq per day.Compared with wheat-eating households in the north (53.704 g CO2eq/d),rice-eating households in the south have a higher per capita carbon footprint of food waste (69.628 g CO2eq/d).In addition,important variables that significantly affect the carbon footprint of food waste in Chinese households include age of the household head,age of the main female members,number of education years of the main female members, size and structure of the family population, income level, storage conditions,dietary knowledge and household type.
food wastenorth-south staple food differencecarbon footprintlife cycle theory
万方数据
