| 华北地区有机及常规草莓生产对环境影响的生命周期评价 |
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| 引用本文： | 李彩恋,赵桂慎,王一超,王东伟.华北地区有机及常规草莓生产对环境影响的生命周期评价[J].中国农学通报,2015,31(23):102-108. |
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| 作者姓名： | 李彩恋 赵桂慎 王一超 王东伟 |
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| 作者单位： | 中国农业大学资源与环境学院生物多样性与有机农业北京市重点实验室,中国农业大学资源与环境学院,中国农业大学资源与环境学院,中国农业大学资源与环境学院 |
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| 基金项目： | 教育部人文社会科学研究规划“我国生态敏感区有机农产品生态补偿计量方法及联动补偿机制研究”(项目批准号：14YJAZH109)、北京市生态学重点学科项目(XK10019440) |
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| 摘 要： | 有机农业与农产品质量安全和生态环境安全密切相关,其环境影响效应也越来越受到人们的广泛关注,系统全面评价有机农产品生产过程对环境的影响,对促进有机农业健康发展具有重要应用价值。本研究采用生命周期评价方法(Life Cycle Assessment,LCA),分析和比较了山东省淄博市博山区有机草莓和北京市昌平区常规草莓生产过程及其对环境的影响。研究结果表明,在各项环境影响指标中,常规草莓生产带来的全球变暖、环境酸化、富营养化和土壤毒性的潜在环境影响分别是全球人均基准值的3.45%、2.11%、27.09%和280.16%,而有机草莓生产带来的全球变暖、环境酸化、富营养化和土壤毒性的潜在环境影响分别是全球人均基准值的1.22%、0.44%、15.17%和202.76%,均低于常规草莓。常规草莓生产中生命周期环境影响较大的是富营养化、水体毒性和土壤毒性,造成常规草莓水体毒性危害严重的原因是种植阶段农药残留迁移至水体所致,而土壤毒性是由于化肥和有机肥所携带的重金属残留所致。有机草莓生产中生命周期环境影响较大的是富营养化和土壤毒性,主要是由于有机草莓农作阶段施肥过程中的磷流失和重金属残留所引起的。总体上看,有机草莓生命周期环境影响综合指数为0.22,而常规草莓为0.43,说明常规草莓对环境的负面影响明显高于有机草莓。因此,施用生物源农药与优质有机肥是控制草莓生命周期负面环境影响的关键措施。
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| 关 键 词： | 有机草莓 常规草莓 环境影响 生命周期评价 有机农业 |
| 收稿时间： | 2/4/2015 12:00:00 AM |
| 修稿时间： | 2015/7/11 0:00:00 |
Environmental Impact of Organic and Conventional Strawberry Production in North China Based on Life Cycle Assessment |
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| Abstract: | Organic agriculture is closely related to quality security of agricultural product and ecological environment security. Recently, more and more people begin to pay attention to environmental effect of organic production and it is very important to evaluate the environmental impact of the organic production process. This paper, using the method of Life Cycle Assessment, analyzed and compared production process and environmental effect of organic strawberry in Boshan District, Shandong Province and conventional strawberry in Changping District, Beijing. The research results show that the potential impacts of conventional strawberry production on environment of global warming, acidification, eutrophication and soil toxicity are 3.45%, 2.11%, 27.09% and 280.16% of the basic value per capita respectively, and the potential impacts on global warming, environmental acidification, eutrophication and soil toxicity in organic strawberry production are 1.22%, 0.44%, 15.17% and 202.76% of the basic value per capita respectively. The potential impacts in organic production are lower than those in conventional production. The larger environmental impacts of conventional strawberry life cycle are eutrophication, water toxicity and soil toxicity, and the serious water toxicity is caused by the pesticide residues in water, and soil toxicity is due to heavy metal residues of chemical fertilizer and organic fertilizer. However, the larger environmental impacts in organic strawberry life cycle are the eutrophication and toxicity of soil, caused by loss of P fertilizer and heavy metal residues. Overall, the comprehensive index of the life cycle environmental impact in organic strawberry is 0.22, while that of conventional strawberry is 0.43. This result means that the negative impact of conventional strawberry production on the environment is significantly higher than that of organic strawberry. Therefore, using biological pesticide and organic fertilizer play important role in controlling the strawberry life cycle impacts. |
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| Keywords: | organic strawberry conventional strawberry environmental impact Life Cycle Assessment organic agriculture |
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