In Situ Measurement of Ammonia Concentration in Soil Headspace Using Fourier Transform Mid-Infrared Photoacoustic Spectroscopy
文献类型：期刊论文
| 作者 | Du Changwen; Wang Jiao; Zhou Zijun; Shen Yazhen; Zhou Jianmin |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 25期号:4页码:605-612 |
| 关键词 | ammonia volatilization cantilevel-type microphone nitrogen principal component regression soil incubation |
| ISSN号 | 1002-0160 |
| 通讯作者 | Du Changwen(chwdu@issas.ac.cn) |
| 英文摘要 | Ammonia (NH3) volatilization is one of the important pathways of nitrogen loss in alkaline soil, and the NH3 concentration in soil headspace is directly linked with the NH3 volatilization. Ammonia was characterized by Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS) and two typical absorption bands in the region of 850-1 200 cm(-1) were observed, which could be used for the prediction of NH3 concentration in the soil headspace. An alkaline soil from North China was involved in the soil incubation, pot and field experiments under three fertilization treatments (control without N input (CK), urea and coated urea). Ammonia concentrations in the soil headspace were determined in each experiment. In the soil incubation experiment, the NH3 emissions were initiated by the N input, reached the highest concentration on day 2, and decreased to the level as measured in CK after 8 d, with significantly higher NH3 emissions in the urea treatment compared to coated urea treatment, especially during the first 4 d. The NH3 concentration in soil headspace of the pot experiment showed the similar dynamics as that in the incubation experiment; however, the NH3 concentration in the soil headspace in the field experiment demonstrated a significantly different emission pattern with those of the incubation and pot experiments, and there was a 4-d delay for the NH3 concentration. Therefore, the NH3 concentration in the incubation and pot experiments could not be directly used to model the real NH3 emission in the field due to the differences in fertilization method and application rate as well as soil temperature and soil disturbance. It was recommended that light irrigation in the second week after fertilization and involvement of controlled release coated urea could be used to significantly decrease N loss from the perspective of NH3 volatilization. |
| 收录类别 | SCI |
| WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; MANURE CHARACTERISTICS ; INFRARED-SPECTROSCOPY ; NITROGEN-UTILIZATION ; SURFACE APPLICATIONS ; ATMOSPHERIC AMMONIA ; REDUCED NITROGEN ; FIELD CONDITIONS ; UREA APPLICATION ; WINTER-WHEAT |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000358630600011 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558343 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Du Changwen |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du Changwen,Wang Jiao,Zhou Zijun,et al. In Situ Measurement of Ammonia Concentration in Soil Headspace Using Fourier Transform Mid-Infrared Photoacoustic Spectroscopy[J]. PEDOSPHERE,2015,25(4):605-612. |
| APA | Du Changwen,Wang Jiao,Zhou Zijun,Shen Yazhen,&Zhou Jianmin.(2015).In Situ Measurement of Ammonia Concentration in Soil Headspace Using Fourier Transform Mid-Infrared Photoacoustic Spectroscopy.PEDOSPHERE,25(4),605-612. |
| MLA | Du Changwen,et al."In Situ Measurement of Ammonia Concentration in Soil Headspace Using Fourier Transform Mid-Infrared Photoacoustic Spectroscopy".PEDOSPHERE 25.4(2015):605-612. |
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来源：南京土壤研究所
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