生态与农村环境学报2025，Vol.41Issue(4)：473-482,10.DOI:10.19741/j.issn.1673-4831.2024.0438
巢湖流域禽类规模养殖碳氮足迹时空特征研究
Spatio-temporal Characterizations of Carbon and Nitrogen Footprints of Poultry Scale-breeding in Chaohu Lake Basin
摘要
Abstract
To study the environmental impacts of carbon and nitrogen flows during poultry scale-breeding in Chaohu Lake Basin,life cycle assessment(LCA)methodology was used to analyze the carbon and nitrogen footprints of poultry scale-breeding.The system covered four stages including feed cultivation,feed processing,poultry breeding,and manure man-agement.Then both carbon footprint and nitrogen footprint resulting from poultry scale-breeding in Chaohu Lake Basin from 1990 to 2020 were analyzed.The results reveal that the carbon footprint increased and then decreased.Between 1990 and 2010,the carbon footprint surged from 0.3×106 to 1.5×106 t CO2-eq.However,it then decreased to 0.9×106 t CO2-eq in 2020.Notably,the feed cultivation contributed a much higher carbon footprint than other stages,ranging from 56.0％to 71.3％.The nitrogen footprint exhibited the similar trends,increasing from 0.2×105 to 1.1×105 t Nr-eq between 1990 and 2005,and subsequently declining to 0.8×105 t Nr-eq by 2020.This change was primarily attributable to the feed cultiva-tion and manure management stages,which accounted for approximately 70％of the total carbon footprint and 30％of the total nitrogen footprint,respectively.The spatial distribution of carbon and nitrogen footprints from poultry scale-breeding in Chaohu Lake Basin was predominantly concentrated in the western area,particularly Feixi County.In 2020,Feixi Coun-ty contributed 31.5％of the total carbon and 29.3％of the total nitrogen footprints,respectively.Therefore,some recom-mendations are proposed,including enhancing the control of agricultural inputs consumption during the feed cultivation stage,innovating the technologies for manure management and treatment,reconfiguring the structure of poultry scale-breeding,and strategizing the regional breeding scale.This study is not only helpful to the enrichment of researches on envi-ronmental footprint of poultry breeding within watershed,but also to the promotion of the sustainability of local agriculture.关键词
生命周期评价/禽类规模养殖/碳足迹/氮足迹/巢湖流域Key words
life cycle assessment/poultry scale breeding/carbon footprint/nitrogen footprint/Chaohu Lake Basin分类
环境科学引用本文复制引用
方维鑫,武慧君,朱慧敏,梅威,苏畅..巢湖流域禽类规模养殖碳氮足迹时空特征研究[J].生态与农村环境学报,2025,41(4):473-482,10.基金项目
国家自然科学基金(72074003) （72074003）
