| Temporal and spatial variations of atmospheric methane concentration and δ^13 C-CH4 near the surface on the Millor Peninsula, East Antarctica |
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| 引用本文： | 刘雅淑,朱仁斌,李香兰,徐华,孙立广.Temporal and spatial variations of atmospheric methane concentration and δ^13 C-CH4 near the surface on the Millor Peninsula, East Antarctica[J].极地研究(英文版),2009,20(1):22-31. |
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| 作者姓名： | 刘雅淑 朱仁斌 李香兰 徐华 孙立广 |
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| 作者单位： | Liu Yashu,Zhu Renbin,Sun Liguang(Institute of Polar Environment, University of Science and Technology of China, Hefei 230026, China);Li Xianglan,Xu Hua(State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Science, Nanjing 210091, China) |
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| 基金项目： | supported by the National Natural Science Foundation(No.40676005 and No.40730107); the Open Foundation for Key Laboratory of Polar Science(No.KP2008004) |
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| 摘 要： | During the 22nd Chinese Antarctic Research Expedition(CHINARE-22,2005/06),the atmospheric gas samples near the surface were taken on the Millor Peninsula and adjacent areas,east Antarctica,using Tedlar gas bags.The methane(CH4) concentration and δ13C-CH4 in those samples were analyzed in the laboratory.The average value of atmospheric CH4 concentration on this peninsula was(1.87±0.12)×10-6,slightly higher than the global average CH4 concentration.The summertime variation of CH4 concentrations showed a large...
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| 关 键 词： | 甲烷浓度 大气气体 东南极洲 空间变化 时间 表面 分析实验室 平均值 |
Temporal and spatial variations of atmospheric methane concentration and δ13C-CH4 near the surface on the Millor Peninsula, East Antarctica |
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| Liu Yashu,Zhu Renbin,Li Xianglan,Xu Hua,Sun Liguang.Temporal and spatial variations of atmospheric methane concentration and δ13C-CH4 near the surface on the Millor Peninsula, East Antarctica[J].Chinese Journal of Polar Science,2009,20(1):22-31. |
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| Authors: | Liu Yashu Zhu Renbin Li Xianglan Xu Hua Sun Liguang |
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| Institution: | 1. Institute of Polar Environment, University of Science and Technology of China, Hefei 230026, China
2. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Science, Nanjing 210091, China |
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| Abstract: | During the 22nd Chinese Antarctic Research Expedition (CHINARE-22,2005/06), the atmospheric gas samples near the surface were taken on the Millor Peninsula and adjacent areas, east Antarctica, using Tedlar gas bags. The methane (CH4) concentration and δ13C-CH4 in those samples were analyzed in the laboratory. The average value of atmospheric CH4 concentration on this peninsula was (1.87±0.12)×10-6, slightly higher than the global average CH4 concentration. The summertime variation of CH4 concentrations showed a large fluctuation, corresponding to the variation of air temperatures. The average δ13C-CH4 was (-38.26±0.52)‰. CH4 concentrations and δ13C-CH4 at different sites varied from 1.74×10-6 to 2.56×10-6 and from -39.31‰ to -31.25‰, respectively. The factors affecting CH4 concentrations and δ13C-CH4 values have also been discussed in this study. |
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| Keywords: | Antarctica Millor Peninsula atmosphere methane carbon isotope |
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