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首页> 外文期刊>Journal of Cleaner Production >Investigating historical dynamics and mitigation scenarios of anthropogenic greenhouse gas emissions from pig production system in China
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Investigating historical dynamics and mitigation scenarios of anthropogenic greenhouse gas emissions from pig production system in China

机译：调查中国猪生产系统人为温室气体排放的历史动态和减缓程度

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摘要

This study introduced a carbon footprint (CF) method based on a life cycle assessment to analyze greenhouse gas (GHG) emissions derived from pig production system in China by using national statistical data during 2000-2016. Results showed that the CF of pig production in China was showing a reduction trend. Specifically, the average CFs of unit mass alive pig in the backyard, specialized, medium-scale and large-scale farms in China were 1.78 kg CO2-eq/kg, 1.55 kg CO2-eq/kg, 1.65 kg CO2-eq/kg and 1.65 kg CO2-eq/kg, respectively, during 2000-2016. Therein, the feedstuffs production and manure management are the main GHG sources in pig production system in China. The total GHG emissions of the Chinese pig system were slightly decreasing from 128.37 million tons (Mt) CO2-eq in 2000 to 127.08 Mt CO2-eq in 2016, while the pig production quantity was increased by 35.12% during the study period. It implied that the pig production system in China had developed toward a positive effect on GHG emissions reduction in recent years. Moreover, this study also estimates the possible quantity of GHG emissions of Chinese pig sector in 2030 through scenario analysis. The simulated results were ranging from 18.48 to 176.42 Mt CO2-eq/ yr, reflecting that the Chinese pig sector still had considerable mitigation potential for GHG emissions. The shift towards intensive pig production, improved feed crop cultivation and manure management systems would be the key points to reduce the GHG emissions of pig production system. This study would contribute to the development of the pig production system in China with a cleaner production approach. (C) 2021 Elsevier Ltd. All rights reserved.
机译：本研究引入了基于生命周期评估的碳足迹（CF）方法，以通过在2000 - 2016年期间使用国家统计数据分析中国猪生产系统的温室气体（GHG）排放。结果表明，中国养猪生产的CF表现出减少趋势。具体地说，中国后院，专业，中规模和大型农场的单位批量活猪的平均CFS为1.78公斤CO2-EQ / kg，1.55公斤CO2-eq / kg，1.65千克CO2-eq / kg和1.65公斤CO2-eq / kg，分别在2000-2016期间。其中，饲料生产和粪便管理是中国猪生产系统的主要温室气体来源。 2000年，中国猪系统的温室气体排放量略微下降至2016年的127.37亿吨（MT）二氧化碳（MT）CO2-EQ，而研究期间猪产量增加35.12％。它暗示，中国猪生产系统已经发展到近年来对温室气体排放的积极影响。此外，本研究还通过场景分析估计2030年中国猪部门的温室气体排放量。模拟结果从18.48到176.42吨CO2-eq / yr的范围内，反映了中国猪行业对温室气体排放有相当大的缓解潜力。转向强化猪生产，改善的饲料作物培养和粪便管理系统将是减少猪生产系统温室气体排放的关键点。本研究将促进中国猪生产系统的开发，采用清洁生产方法。 （c）2021 elestvier有限公司保留所有权利。

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