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| Greenhouse gas and ammonia emissions from different piling heights in long-term stacks of dairy manure |
| Received:July 08, 2017 Revised:September 27, 2017 |
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| KeyWord:cattle manure;stacking height;greenhouse gas;ammonia emission |
| Author Name | Affiliation | E-mail | | CUI Li-li | College of Resources and Environment, Northwest A & F University, Yangling 712100, China | | | WANG Xiao-qin | College of Resources and Environment, Northwest A & F University, Yangling 712100, China
Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China | xqwang@nwsuaf.edu.cn | | LIANG Dong-li | College of Resources and Environment, Northwest A & F University, Yangling 712100, China
Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China | | | DUAN Xue-qin | College of Resources and Environment, Northwest A & F University, Yangling 712100, China | | | LIU Song | College of Resources and Environment, Northwest A & F University, Yangling 712100, China | | | ZHAO Jia-lei | College of Resources and Environment, Northwest A & F University, Yangling 712100, China | |
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| Abstract: |
| 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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