| 中国部分清洁地区大气中N2O的浓度 |
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| 引用本文： | 王木林,程红兵,李兴生,温玉璞.中国部分清洁地区大气中N2O的浓度[J].气象学报,1997,55(3):363-370. |
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| 作者姓名： | 王木林 程红兵 李兴生 温玉璞 |
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| 作者单位： | 中国气象科学研究院 |
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| 基金项目： | 国家科技攻关项目,国家重大自然科学基金 |
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| 摘 要： | １９９３年４月—１９９５年８月对中国部分清洁地区大气的Ｎ２Ｏ浓度进行了现场观测，结果表明：农田（玉米田和麦田）大气的Ｎ２Ｏ平均浓度高达３２２．１－３４３．４ｐｐｂｖ，这是土壤排放Ｎ２Ｏ的结果；临安、龙风山和瓦里关山大气本底观测站（ＷＭＯ／ＧＡＷ）Ｎ２Ｏ的平均浓度分别为３１８．８±８．４ｐｐｂｖ，３１７．４±４．７ｐｐｂｖ和３１４．０±４．２ｐｐｂｖ。在此基础上，分析了大气Ｎ２Ｏ的分布及变化特征。另外，还对现场取样及Ｎ２Ｏ浓度测量技术作了初步分析和评价
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| 关 键 词： | 氧化亚氮（N2O），本底浓度，气相色谱法 |
| 收稿时间： | 1995/11/7 0:00:00 |
| 修稿时间： | 1/7/1996 12:00:00 AM |
THE BACKGROUND LEVELS OF ATMO-SPHERIC NITROUS OXIDE (N2O) IN SOME REGIONS OF CHINA |
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| Wang Mulin,Cheng Hongbing,Li Xingsheng and Wen Yupu.THE BACKGROUND LEVELS OF ATMO-SPHERIC NITROUS OXIDE (N2O) IN SOME REGIONS OF CHINA[J].Acta Meteorologica Sinica,1997,55(3):363-370. |
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| Authors: | Wang Mulin Cheng Hongbing Li Xingsheng and Wen Yupu |
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| Institution: | Chinese Academy of Meteological Sciences, Beijing, 100081;Chinese Academy of Meteological Sciences, Beijing, 100081;Chinese Academy of Meteological Sciences, Beijing, 100081;Chinese Academy of Meteological Sciences, Beijing, 100081 |
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| Abstract: | In the obverserv ational result of the atmospheric N2O concentration in some unpolluted regions of China from May 1993 to July 1995, They show that the average mixing ratios of N2O over agricultural fieldes(maize and wheat) are from 322.1 to 343.4 ppbv (10-9v/v). There are larger value and variation of mixing ratio of N2O due to emission of N2O from fertilized soils. The mean mixing ratios of N2O at Linan and Longfengshan Background Air Pollution Monitoring Station and Waliguanshan Global Atmosphere Watch Baseline Observatory (WMO/GAW) are 318.8±8.4 ppbv, 317.4±4.7 ppbv and 314.0±4.2 ppbv, respectively. The distribution and variation of N2O were disscussed. Additionally, the sampling technique and measured method of mixing ratio of N2O were specially analysed and assessed. |
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| Keywords: | Nitrous oxide(N 2O) Background levels Gas Chromatography |
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