[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"item-2634":3},{"id":4,"title":5,"url":6,"summary":7,"summary_zh":8,"content":9,"source_name":10,"source_url":6,"published_at":11,"category":12,"cover_url":9,"hotness":13,"is_selected":14,"score":15,"score_detail":16,"sources":24,"tags":26,"view_count":32,"doi":33,"paper":34,"created_at":52},2634,"Exploring the carbon footprint of Chinese beef systems – a life‑cycle assessment, decoupling analysis and spatial effects","https:\u002F\u002Fdoi.org\u002F10.3389\u002Ffsufs.2026.1849066","Introduction China’s beef cattle industry is currently in a phase of expansion, while its greenhouse gas (GHG) emission characteristics remain insufficiently elucidated. To fill this research gap, this study employed Life Cycle Assessment (LCA) to quantify the carbon footprint of beef cattle production across provinces in mainland China during the period 2002–2022. Methods The analysis encompassed total GHG emissions across three farming scales—small-scale (1–49 heads), medium-scale (50–500 heads), and large-scale (>500 heads)—classified by annual slaughter volume, and divided the entire production system into four stages: feed cultivation, enteric fermentation, manure management, and processing and transportation. Results Large-scale operations exhibited relatively lower carbon intensity, with an average of 23.71 kg CO 2 e per kilogram of beef, whereas all three scales demonstrated a fluctuating yet gradually increasing trend over the study period. Enteric fermentation emerged as the dominant emission source, with an annual average of 268.84 TgCO 2 e. Methane consistently accounted for the largest proportion of GHG emissions, averaging 73.59% of the annual total. Spatially, both total emissions and various carbon intensity indicators showed a westward shift, with western regions lagging behind eastern regions in emission reduction performance. Decoupling analysis revealed that for most provinces from 2002 to 2022, GHG emissions from beef cattle production grew in tandem with the output value of the cattle industry. Spatial regression further identified significant agglomeration effects, with carbon intensity being significantly influenced by the economic level of the beef cattle sector, rural per capita disposable income, the share of the cattle industry in the regional economy, and grain yield.","引言 中国肉牛产业目前正处于扩张阶段，而其温室气体（GHG）排放特征尚不明确。为填补这一研究空白，本研究采用生命周期评价（LCA）方法，对2002—2022年中国大陆各省肉牛生产的碳足迹进行了量化。方法 分析涵盖三种养殖规模——小规模（1—49头）、中规模（50—500头）和大规模（>500头）——按年出栏量划分，并将整个生产系统分为四个阶段：饲料种植、肠道发酵、粪便管理和加工运输。结果 大规模养殖的碳强度相对较低，平均为每千克牛肉23.71 kg CO₂e，但三种规模在研究期间均呈现波动上升趋势。肠道发酵是主要排放源，年均排放量为268.84 TgCO₂e。甲烷始终占温室气体排放的最大比例，年均占总量的73.59%。在空间分布上，总排放量和各项碳强度指标均呈现向西转移的趋势，西部地区的减排表现落后于东部地区。脱钩分析表明，2002—2022年大多数省份的肉牛生产温室气体排放与养牛业产值同步增长。空间回归进一步识别出显著的集聚效应，碳强度受肉牛产业经济水平、农村人均可支配收入、养牛业在区域经济中的占比以及粮食产量的显著影响。",null,"Frontiers in Sustainable Food Systems","2026-09-15T00:00:00Z","论文",10,false,84,{"impact":17,"substance":18,"depth":19,"authority":20,"freshness":21,"relevant":22,"comment":23},22,23,18,13,8,1,"基于2002—2022年全国省级面板数据的肉牛全生命周期碳足迹核算，方法规范、数据规模大，揭示规模效应与排放西移趋势，对畜牧业绿色低碳转型有参考价值。",[25],{"name":10,"url":6},[27,28,29,30,31],"农业绿色发展","碳足迹","生命周期评价","肉牛产业","畜牧业减排",0,"10.3389\u002Ffsufs.2026.1849066",{"doi":33,"openalex_id":35,"authors":36,"venue":10,"cited_by_count":32,"oa_url":6,"card":45,"direction":49,"ingested_from":51},"W7213306361",[37,39,41,43],{"name":38,"orcid":9},"Xianghui Yin",{"name":40,"orcid":9},"Shiqin Sun",{"name":42,"orcid":9},"Jiangge Wang",{"name":44,"orcid":9},"Tengyun Gao",{"tldr":46,"method":47,"finding":48,"direction":49,"opportunity":50},"用生命周期评估量化2002–2022年中国各省肉牛碳足迹，并分析脱钩与空间效应。","生命周期评估、脱钩分析、空间回归，覆盖三种养殖规模与四个生产阶段。","大规模养殖碳强度较低，肠道发酵为主排放源，排放呈西移趋势且多省未脱钩。","农业绿色发展与碳","可探究西部减排滞后地区的规模优化与甲烷减排技术，及空间溢出机制。","openalex","2026-09-16T23:30:08.249805Z"]