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| DOI | 10.1016/j.atmosenv.2020.117562 |
| Ammonia emission measurement with an online wind tunnel system for evaluation of manure application techniques | |
| Pedersen J.M.; Feilberg A.; Kamp J.N.; Hafner S.; Nyord T. | |
| 发表日期 | 2020 |
| ISSN | 1352-2310 |
| 卷号 | 230 |
| 英文摘要 | Field application of liquid manure contributes substantially to atmospheric ammonia. Low emission application methods are commonly used to reduce ammonia transfer to the atmosphere. To document which application method results in lower ammonia volatilization there is a need for high precision measurements to ensure that small differences in total emission and emission patterns can be quantified. This paper presents the evaluation and application of a new system of dynamic chambers (wind tunnels) with online cavity ring down spectroscopy measurements of ammonia. The system allows for high time resolution of 104 min throughout the measuring period (≥90 h) when testing two treatments and one reference in triplicates. Measurement variability is low with a coefficient of variation of 13 ± 8% within triplicates. The system was used to investigate the effect of trailing shoes compared to trailing hoses on different soil and crop types, where the expected differences in ammonia volatilization are low. The results show that when applying pig slurry on coarse sand a significant reduction of 47 ± 20% was obtained, whereas the reduction when applied on loamy sand and sandy loam was lower and occasionally insignificant. During ten experiments on three different soil types, an overall average reduction of ammonia volatilization from using trailing shoes compared to trailing hoses was found to be 19 ± 12%. Furthermore, the importance of correct use of trailing hoses was examined by comparing with application above the crop canopy. Application at the ground surface gave an ammonia emission reduction of 40 ± 13% compared to application 20 cm above the canopy. © 2020 Elsevier Ltd |
| 关键词 | Band applicationDynamic chambersTrailing hoseTrailing shoeWind tunnels |
| 语种 | 英语 |
| scopus关键词 | Crops; Emission control; Fertilizers; Hose; Light measurement; Mammals; Manures; Spectroscopy; Wind tunnels; Ammonia volatilization; Application method; Atmospheric ammonia; Cavity ring down spectroscopies; Field application; High-precision measurement; High-time resolution; Manure applications; Ammonia; ammonia; ammonia; emission control; loamy sand; manure; precision; slurry; wind tunnel; World Wide Web; air temperature; Article; cavity ring down spectroscopy; evaporation; manure; online system; pig; priority journal; sandy loam; soil property; soil temperature; volatilization; wind; Suidae |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/249173 |
| 作者单位 | Aarhus University, Dept. of Engineering, Denmark |
| 推荐引用方式 GB/T 7714 | Pedersen J.M.,Feilberg A.,Kamp J.N.,et al. Ammonia emission measurement with an online wind tunnel system for evaluation of manure application techniques[J],2020,230. |
| APA | Pedersen J.M.,Feilberg A.,Kamp J.N.,Hafner S.,&Nyord T..(2020).Ammonia emission measurement with an online wind tunnel system for evaluation of manure application techniques.ATMOSPHERIC ENVIRONMENT,230. |
| MLA | Pedersen J.M.,et al."Ammonia emission measurement with an online wind tunnel system for evaluation of manure application techniques".ATMOSPHERIC ENVIRONMENT 230(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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