delta C-13-CH4 reveals CH4 variations over oceans from mid-latitudes to the Arctic
文献类型：期刊论文
| 作者 | Yu, Juan1; Xie, Zhouqing1; Sun, Liguang1; Kang, Hui1; He, Pengzhen1; Xing, Guangxi2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 5页码:9 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/srep13760 |
| 通讯作者 | Xie, Zhouqing(zqxie@ustc.edu.cn) |
| 英文摘要 | The biogeochemical cycles of CH4 over oceans are poorly understood, especially over the Arctic Ocean. Here we report atmospheric CH4 levels together with delta C-13-CH4 from offshore China (31 degrees N) to the central Arctic Ocean (up to 87 degrees N) from July to September 2012. CH4 concentrations and delta C-13-CH4 displayed temporal and spatial variation ranging from 1.65 to 2.63 ppm, and from -50.34% to -44.94% (mean value: -48.55 +/- 0.84%), respectively. Changes in CH4 with latitude were linked to the decreasing input of enriched delta C-13 and chemical oxidation by both OH and Cl radicals as indicated by variation of delta C-13. There were complex mixing sources outside and inside the Arctic Ocean. A keeling plot showed the dominant influence by hydrate gas in the Nordic Sea region, while the long range transport of wetland emissions were one of potentially important sources in the central Arctic Ocean. Experiments comparing sunlight and darkness indicate that microbes may also play an important role in regional variations. |
| 收录类别 | SCI |
| WOS关键词 | HYDROXYL RADICAL CONCENTRATIONS ; ATMOSPHERIC METHANE ; BOUNDARY-LAYER ; CLIMATE ; ARCHAEA ; GASES ; MODEL ; ICE |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000360367100001 |
| 出版者 | NATURE PUBLISHING GROUP |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558335 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xie, Zhouqing |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, Inst Polar Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Juan,Xie, Zhouqing,Sun, Liguang,et al. delta C-13-CH4 reveals CH4 variations over oceans from mid-latitudes to the Arctic[J]. SCIENTIFIC REPORTS,2015,5:9. |
| APA | Yu, Juan,Xie, Zhouqing,Sun, Liguang,Kang, Hui,He, Pengzhen,&Xing, Guangxi.(2015).delta C-13-CH4 reveals CH4 variations over oceans from mid-latitudes to the Arctic.SCIENTIFIC REPORTS,5,9. |
| MLA | Yu, Juan,et al."delta C-13-CH4 reveals CH4 variations over oceans from mid-latitudes to the Arctic".SCIENTIFIC REPORTS 5(2015):9. |
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来源：南京土壤研究所
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