农业环境科学学报2012，Vol.31Issue(6)：1250-1255,6.
辽宁省育肥猪生产环境影响的生命周期评价
Life Cycle Assessment of Environmental Impacts from Finishing Pig Production in Liaoning Province, China
刘鸣达 1赵妍 1刘显军 2王耀晶1
作者信息
- 1. 沈阳农业大学土地与环境学院,沈阳110866
- 2. 沈阳农业大学畜牧兽医学院,沈阳 110866
- 折叠
摘要
Abstract
Life cycle assessment was used to analyze the inventory of pollutants' emission from 1 000 finishing pigs in large scale pig farms to assess the environmental impacts of finishing pig production in Liaoning Province. The results showed that the impact index of life cycle environment of 1 000 finishing pigs was 56.59. The sequence of environmental impacts from finishing pig production was eutrophication, acidification and global warming, and their potential value of the environmental impacts was 36.31, 13.84 and 6.44 respectively. The eutrophication effect was primarily caused by the nitrogen and phosphorus in pig's manure and urine. The acidification effect was mainly resulted from NH3 emission from pig's manure and urine. The global warming effect was mainly due to the emission of NO, in the production of chemical fertilizers used for pig's feeding crops. Our results suggested that the major measures to decrease the environmental loads from the finishing pig production in Liaoning Province was to enhance the harmless treatment of pig's manure, the recycle of waste from pig's farms, increase the ratio of green fodder for finishing pig's feed and increase the utilization efficiency of chemical fertilizers for growing feeding crops.关键词
育肥猪/生命周期评价/环境影响/富营养化/酸化/全球变暖Key words
finishing pigs/ life cycle assessment/ environmental impact/ eutrophication/ acidification/ global warming分类
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刘鸣达,赵妍,刘显军,王耀晶..辽宁省育肥猪生产环境影响的生命周期评价[J].农业环境科学学报,2012,31(6):1250-1255,6.
