In Situ Evaluation of Net Nitrification Rate in Terra Rossa Soil Using a Fourier Transform Infrared Attenuated Total Reflection N-15 Tracing Technique
文献类型：期刊论文
| 作者 | Du Changwen2; Linker, Raphael1; Shaviv, Avi1; Zhou Jianmin2 |
| 刊名 | APPLIED SPECTROSCOPY
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 63期号:10页码:1168-1173 |
| ISSN号 | 0003-7028 |
| 关键词 | Nitrification Mineralization Fourier transform infrared spectroscopy Attenuated total reflection FT-IR-ATR spectroscopy N isotopes Partial least squares regression PLSR |
| 通讯作者 | Linker, Raphael(linkerr@tx.technion.ac.il) |
| 英文摘要 | Nitrification and mineralization of organic nitrogen (N) are important N transformation processes in soil, and mass spectrometry is a suitable technique for tracing changes of N-15 isotopic species of mineral N and estimating the rates of these processes. However, mass spectrometric methods for tracing N dynamics are costly, time consuming, and require long and laborious preparation procedures. This study investigates mid-infrared attenuated total reflection (ATR) spectroscopy as an alternative method for detecting changes in (NO3)-N-14-N and (NO3)-N-15-N concentrations. There is a significant shift of the nu(3) absorption band of nitrate according to N species, namely from the 1275 to 1460 cm(-1) region for (NO3-)-N-14 to the 1240-1425 cm(-1) region for (NO3-)-N-15. This shift makes it possible to quantify the N isotopes using multivariate calibration methods. Partial least squares regression (PLSR) models with five factors yielded a determination error of 6.7-9.2 mg N L-1 for aqueous solutions and 5.9-7.8 mg N kg(-1) (dry soil) for pastes of a Terra rossa soil. These PLSR models were used to monitor the changes of (NO3)-N-15-N and (NO3)-N-14-N content in the same Terra rossa soil during an incubation experiment in which [(NH4)-N-15](2)SO4 was applied to the soil, allowing the estimation of the contributions of applied N and mineralized N to the net nitrification rate, the potential losses of the applied (NH4)-N-15-N, and the net mineralization of soil organic N. |
| 收录类别 | SCI |
| WOS关键词 | PARTIAL LEAST-SQUARES ; MIDINFRARED SPECTROSCOPY ; NITROGEN MINERALIZATION ; NITRATE DETERMINATION ; GRASSLAND SOILS ; DENITRIFICATION ; OVERESTIMATION ; IDENTIFICATION ; REGRESSION ; MEMBRANE |
| WOS研究方向 | Instruments & Instrumentation ; Spectroscopy |
| WOS类目 | Instruments & Instrumentation ; Spectroscopy |
| 语种 | 英语 |
| 出版者 | SOC APPLIED SPECTROSCOPY |
| WOS记录号 | WOS:000274012000012 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558783 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Linker, Raphael |
| 作者单位 | 1.Technion Israel Inst Technol, Fac Civil & Environm Engn, IL-32000 Haifa, Israel 2.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du Changwen,Linker, Raphael,Shaviv, Avi,et al. In Situ Evaluation of Net Nitrification Rate in Terra Rossa Soil Using a Fourier Transform Infrared Attenuated Total Reflection N-15 Tracing Technique[J]. APPLIED SPECTROSCOPY,2009,63(10):1168-1173. |
| APA | Du Changwen,Linker, Raphael,Shaviv, Avi,&Zhou Jianmin.(2009).In Situ Evaluation of Net Nitrification Rate in Terra Rossa Soil Using a Fourier Transform Infrared Attenuated Total Reflection N-15 Tracing Technique.APPLIED SPECTROSCOPY,63(10),1168-1173. |
| MLA | Du Changwen,et al."In Situ Evaluation of Net Nitrification Rate in Terra Rossa Soil Using a Fourier Transform Infrared Attenuated Total Reflection N-15 Tracing Technique".APPLIED SPECTROSCOPY 63.10(2009):1168-1173. |
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来源：南京土壤研究所
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