摘要
为了评价火龙果种植体系对环境的影响,并找出其主要的影响因子,通过农户调研与生命周期评价的方法对广西火龙果集约化种植体系开展了生命周期评价。结果表明:富营养化和温室气体排放是火龙果生产体系生命周期环境影响中占比最大的影响类型,对生命周期综合环境影响的贡献率分别为59.6%和21.7%。其中肥料生产和施用分别占到农资阶段和农作阶段富营养化潜值的98.0%和99.8%。而在温室气体排放中,农资生产阶段的肥料与农药生产分别占农资生产阶段温室气体排放量的20.0%和77.9%,肥料施用占农作阶段温室气体排放量的86.6%。因此,在火龙果生产体系中,减少肥料及农药用量是减轻该体系对环境的影响的主要环节。
To evaluate the environmental impact of pitaya production and find out the main impact factors,a baseline household survey in Guangxi was conducted meanwhile the method of Life Cycle Assessment(LCA)was used for data analysis.Among all potential impacts indexes,the significant environmental impact were eutrophication and global warming potential,with the contribution rate of 59.6%and 21.7%,respectively.Fertilizer production and application accounted for 98.0%and 99.8%of the eutrophication in agricultural production stage and agricultural operation stage,correspondingly.In the global warming aspect,fertilizer and pesticide production accounted for 20.0%and 77.9%in agricultural production stage,which made the largest contribution among all the links.Similarly,fertilizer application,which accounted for 86.6%of the global warming potential,made the largest contribution in agricultural operation stage.To sum up,reducing fertilizer and pesticide application rate are the important ways to mitigate the impact on the environment in pitaya production.
作者
赵鹏飞
程玉
任太军
黄志坚
李广泽
汤华
阮云泽
ZHAO Pengfei;CHENG Yu;REN Taijun;HUANG Zhijian;LI Guangze;TANG Hua;RUAN Yunze(Institute of Tropical Agriculture and Forestry,Hainan University,Haikou,Hainan 570228,China;Shenzhen Noposion Agrochemicals Co.,Ltd.,Shenzhen,Guangdong 518100,China)
出处
《热带作物学报》
CSCD
北大核心
2019年第11期2119-2126,共8页
Chinese Journal of Tropical Crops
基金
香蕉、菠萝、火龙果、槟榔优化施肥技术研究与示范(No.zzzz002017038)
