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基于生命周期的我国畜禽养殖业碳排放核算

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针对我国畜禽养殖业目前碳排放核算方法学的研究相对缺乏,难以满足核算实践需求的问题,参考联合国政府间气候变化专门委员会(IPCC)国家温室气体清单指南以及生命周期评价(LCA)的相关核算方法,结合国内畜禽养殖业文献调研Meta分析数据和Ecoinvent数据库中相关数据,对排放因子等重新确定缺省值或者参考值,构建出从畜禽"饲养-清粪-存储-粪污处理"全生命周期的养殖业碳排放核算方法。结果表明,畜禽养殖业碳排放主要来源于粪污处理及能源消耗环节,对于反刍动物来说,饲喂环节肠道发酵产生的排放为最主要来源。通过误差传递方程分析该方法不确定性较低,该方法可实现对我国畜禽养殖业碳足迹进行科学的估算,并为减排技术的筛选及减排潜力评估进行理论支撑。
The evaluation of the livestock and poultry production of carbon emissions in China based on life cycle assessment
Due to the lack of carbon emission accounting methodology in China's livestock and poultry industry,it is difficult to meet the needs of the evaluation of the livestock and poultry production of carbon emissions in China.The accounting method of this paper referred to the Intergovernmental Panel on Climate Change(IPCC)national greenhouse gas inventory guidelines and life cycle assessment(LCA).The carbon emission rate was based on the Meta-analysis data of domestic livestock and poultry breeding literature research and the relevant data in the Ecoinvent database(GABI 10SOFTWARE),the default value or reference value of the emission factor was re-determined,and the carbon emission accounting method for the whole life cycle of livestock and poultry'feeding-clearing-storage-waste treatment'was constructed.The results show that the carbon emissions of livestock and poultry breeding industry mainly come from manure treatment and energy consumption.For ruminants,the emissions from intestinal fermentation in feeding are the most important sources.Through the error transfer equation analysis,the uncertainty of the method is low,and the method can be realized.

livestock and poultry industrylife cycle assessmentcarbon emission accountingemission factorsuncertainty analysis

马于清、曹丁戈、罗文海、李国学、张卫峰、李扬阳

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中国农业大学资源与环境学院,北京 100193

中国农业大学有机循环研究院(苏州),江苏苏州 215100

农业农村部农业绿色低碳重点实验室,北京 100193

畜禽养殖业 生命周期评价 碳排放核算 排放因子 不确定性分析

国家重点研发计划(十四五)

2022YFD1900300

2024

中国环境科学
中国环境科学学会

中国环境科学

CSTPCDCHSSCD北大核心
影响因子:2.174
ISSN:1000-6923
年,卷(期):2024.44(5)