| 崔利利,王效琴,梁东丽,段雪琴,刘松,赵加磊.不同堆高奶牛粪便长期堆积过程中温室气体和氨排放特点[J].农业环境科学学报,2018,37(2):376-382. |
| 不同堆高奶牛粪便长期堆积过程中温室气体和氨排放特点 |
| Greenhouse gas and ammonia emissions from different piling heights in long-term stacks of dairy manure |
| 投稿时间：2017-07-08 修订日期：2017-09-27 |
| DOI：10.11654/jaes.2017-0963 |
| 中文关键词: 奶牛粪便 堆高 温室气体 氨排放 |
| 英文关键词: cattle manure stacking height greenhouse gas ammonia emission |
| 基金项目:国家自然科学基金项目（41201588）；“十二五”国家科技支撑计划课题（2012BAD14B11）；中央高校基本科研业务费专项基金（Z109021538） |
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| 中文摘要: |
| 为定量评价牛粪长期堆积对大气环境的影响，分别采用静态箱-气相色谱和通气法测定了不同堆体高度（堆高）奶牛粪便41周堆积过程中CH4、N2O和NH3 3种气体的排放量，分析了堆高对3种气体累积排放量以及温室效应和PM2.5的影响。结果表明，堆高对温室气体和NH3累积排放量的影响差异显著。堆高25 cm的CH4和N2O累积排放量显著低于堆高50 cm，但堆高对NH3累积排放量的影响正好相反。奶牛粪便长期堆积过程中CH4对温室效应贡献最大，贡献率为61.41%~63.97%，其次是N2O，贡献率为32.71%~33.70%，NH3对温室效应的贡献很小，仅为2.33%~5.88%。堆高25 cm的堆体温室效应显著低于堆高50 cm。堆高25 cm的堆体对PM2.5的影响显著高于50 cm。 |
| 英文摘要: |
| The present study aimed to analyze the effects of piling height on greenhouse gas and NH3 emissions during 41 weeks stacking of dairy manure, and the effects on global warming potential(GWP) and particulate matter 2.5(PM2.5) were also investigated. Emissions of CH4 and N2O were measured by the static chamber-gas chromatography technique and NH3 was measured by the venting method. The results showed that CH4 and N2O cumulative emissions from manure in stack heights of 50 cm were significantly higher than that of 25 cm. However, the opposite trend was shown for NH3 emission. Methane was the largest contributor to GWP, accounting for 61.41%~63.97% of the total value, N2O being the second largest contributor at 32.71%~33.70%, and NH3 contributing the least, accounting for only 2.33%~5.88%. GWP increased as stacking height increased from 25 cm to 50 cm, while PM2.5 forming potential decreased significantly. The present study suggested that the choice of manure management measures should be taken into consideration for multiple environmental problems. |
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