1. School of Electronic Information Engineering, Anhui University, Hefei 230039, China 2. Beijing Research Center for Intelligent Equipment for Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
Abstract：The excessive emission of N2O (Nitrous oxide) will destroy the ozone layer, reasonable fertilization and adopting measures of emission reduction of N2O are of great significance to slowing down the greenhouse effect. The article studied the impact of fertilization and water on the emission of N2O from the cabbage farmland using FTIR spectrometry. To enhance the sensitivity of the measuring system, we used multi-reflecting mirrors to increase the optical pathlength. By comparing the infrared spectra between the before and after fertilizer application and the NIST spectral library, finally, the band at 2 160～2 225 cm-1 was chosen as the spectral characteristics band of quantitative calculation of N2O through analyzing. The research found that fertilization and water could promote the emission of N2O from the cabbage farmland soil, which could supply theory bases for emission reduction of N2O and slowing down the greenhouse effect. Finally, we also studied the diurnal emission rules of N2O from the fertilized soil; the results showed that the emission of N2O was lower at night and the results were compared with that of previous’ studies, which verifies the feasibility of this method. The results proved that FTIR with long optical path was a rapid and effective method to measure the emission rules of N2O from the cabbage farmland soil, which can measure the gas emissions of N2O from the fertilized cabbage farmland soil and compared with other traditional measuring methods, it had the advantages such as rapidness and convenience.
肖广东1, 2，郑 玲2，董大明2，张东彦1，张保华2，廖同庆1* . 基于长光程的土壤氧化亚氮排放规律的FTIR光谱法研究 [J]. 光谱学与光谱分析, 2015, 35(11): 3063-3067.
XIAO Guang-dong1, 2, ZHENG Ling2, DONG Da-ming2, ZHANG Dong-yan1，ZHANG Bao-hua2, LIAO Tong-qing1* . A Study of FTIR Spectrometry Based on a Long Optical Path on the Emission Rules of Nitrous Oxide from Soil. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(11): 3063-3067.
[1] Weatherhead E C, Reinsel G C, Tiao G C, et al. Journal of Geophysical Research: Atmospheres (1984—2012), 2000, 105(D17): 22201. [2] Zheng X, Han S, Huang Y, et al. Global Biogeochemical Cycles, 2004, 18(2): 1. [3] YU Ya-jun, WANG Xiao-guo, ZHU Bo(于亚军，王小国，朱 波). Acta Ecologica Sinica(生态学报), 2012, 32 (6): 1830. [4] ZHOU Cun-yu, ZHOU Guo-yi, WANG Ying-hong, et al(周存宇，周国逸，王迎红，等). Journal of Beijing Forestry University(北京林业大学学报), 2005, 27(4): 23. [5] ZHANG Lin, SHAO Sheng-yu, YANG Liu, et al(张 琳，邵晟宇，杨 柳，等). Analytical Instrumentation(分析仪器), 2009, 2: 6. [6] Grutter M. Atmosfera, 2003, 16(1): 1. [7] Santos C, Fraga M E, Kozakiewicz Z, et al. Research in Microbiology, 2010, 161(2): 168. [8] Griffith D W T, Leuning R, Denmead O T, et al. Atmospheric Environment, 2002, 36(11): 1833. [9] Kelliher F M, Reisinger A R, Martin R J, et al. Agricultural and Forest Meteorology, 2002, 111(1): 29. [10] CHU Xiao-li(褚小立). Molecular Spectroscopy Analytical Technology Combined with Chemometrics and Its Applications(化学计量学方法与分子光谱分析技术). Beijing: Chemical Industry Press(化学工业出版社). 2011. [11] Dong Daming, Zhao Chunjiang, Zheng Wengang, et al. Scientific Reports 3, 2013. 2585. [12] Linstrom, P J, Mallard W G, Eds. NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg MD, 20899, http://webbook.nist.gov, (retrieved April 9, 2013). [13] Esler M B, Griffith D W T, Wilson S R, et al. Analytical Chemistry, 2000, 72(1): 206. [14] PENG Shi-zhang, HOU Hui-jing, WU Xia-rui et al(彭世彰，侯会静，吴夏蕊，等). Transactions of the Chinese Society of Agricultural Engineering(农业工程学报)，2011, 27(8): 14. [15] Han J G, Li Z B, Zhu Y L, et al. Chinese Journal of Soil Science, 2004, 35(3): 285. [16] Wrage N, Velthof G L, Van Beusichem M L, et al. Soil Biology and Biochemistry, 2001, 33(12): 1723. [17] Gregorich E G, Hopkins D W, Elberling B. Soil Biology & Biochemistry, 2006, 38: 3120. [18] YANG Qing-peng, XU Ming, LIU Hong-sheng, et al(杨庆朋，徐 明，刘洪升，等). Acta Ecologica Sinica(生态学报)，2011, 31(8): 23011. [19] Dalal R C, Wang W, Robertson G P, et al. Soil Research, 2003, 41(2): 165.
