Compositional characteristics of n-alkanes of the glaciers over the Tibetan Plateau and their environmental and climatic significances
文献类型：期刊论文
| 作者 | Li QuanLian; Wang NingLian; Wu XiaoBo; Pu JianChen; He JianQiao; Xie Jun |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 52期号:11页码:1803-1812 |
| 关键词 | Tibetan Plateau glacier n-alkanes substance origin |
| ISSN号 | 1006-9313 |
| DOI | 10.1007/s11430-009-0168-y |
| 通讯作者 | Li QuanLian(lql@lzb.ac.cn) |
| 英文摘要 | We report on the concentration and compositional features of n-alkanes of natural and anthropogenic origins in the snow samples collected from the Qiyi glacier in the Qilian Mountains, the Yuzhufeng glacier in eastern Kunlun Mountains, the Xiaodongkemadi glacier in the Tanggula Mountains, and the Gurenhekou glacier in the Nyainqentanglha Range. The results indicate a decrease in the total n-alkane concentration (T-HCs) from the northeast to the south over the Tibetan Plateau. The T-HCs in these studied areas were close to those in the Belukha and Sofiyskiy glacier, Russian Alati Mountains and the Dasuopu glacier in the Himalaya but were much higher than those in the Greenland ice sheet, suggesting that the mountain glaciers in the Asian continent may receive a higher loading of n-alkanes than the Greenland ice core. Moreover, the compositional characteristics of n-alkanes indicated that the n-alkanes in the studied areas were probably originated from the plant waxes as well as the fossil-fuel combustion exhaust, whereas the contribution from the lower organisms was small. In addition, the plant wax (C(n)(wax)) and anthropogenic (non-C(n)(wax)) contributions revealed that fast industrialization may have significant effects on the organic pollutant composition in glacier over the Tibetan Plateau and its circumference environment. Particularly, except for the Yuzhufeng glacier, the Sigma nC(21)(-)/Sigma nC(22)(+) and (nC(15)+nC(17)+nC(19))/(nC(27)+nC(29)+nC(31)) ratio decreased from the Qiyi glacier to the Gurenhekou glacier over the Tibetan Plateau, while the carbon preference index (CPI) values increased. These results indicate a decrease in terrigenous input while an increase in marine input from the northeast to the south over the Tibetan Plateau. These two ratios can be used as the climatic and environmental change indicators. |
| 收录类别 | SCI |
| WOS关键词 | WESTERN UNITED-STATES ; ORGANIC-MATTER ; DASUOPU GLACIER ; PARTICULATE MATTER ; MARINE-SEDIMENTS ; SNOW SAMPLES ; HONG-KONG ; ICE CORE ; AEROSOLS ; TROPOSPHERE |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000272033200011 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556187 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li QuanLian |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li QuanLian,Wang NingLian,Wu XiaoBo,et al. Compositional characteristics of n-alkanes of the glaciers over the Tibetan Plateau and their environmental and climatic significances[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(11):1803-1812. |
| APA | Li QuanLian,Wang NingLian,Wu XiaoBo,Pu JianChen,He JianQiao,&Xie Jun.(2009).Compositional characteristics of n-alkanes of the glaciers over the Tibetan Plateau and their environmental and climatic significances.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(11),1803-1812. |
| MLA | Li QuanLian,et al."Compositional characteristics of n-alkanes of the glaciers over the Tibetan Plateau and their environmental and climatic significances".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.11(2009):1803-1812. |
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来源：寒区旱区环境与工程研究所
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