Dissolved organic carbon, CO2, and CH4 concentrations and their stable isotope ratios in thermokarst lakes on the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Mu, Cuicui1,2; Zhang, Tingjun2; Wu, Qingbai1; Peng, Xiaoqing2; Zhang, Peng1; Yang, Yuzhong1; Hou, Yandong1; Zhang, Xiankai2; Cheng, Guodong1 |
| 刊名 | JOURNAL OF LIMNOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 75期号:2页码:313-319 |
| 关键词 | Qinghai-Tibetan Plateau thermokarst lakes greenhouse gas dissolved organic carbon stable carbon isotope |
| ISSN号 | 1129-5767 |
| DOI | 10.4081/jlimnol.2016.1346 |
| 通讯作者 | Zhang, Tingjun(tjzhang@lzu.edu.cn) ; Wu, Qingbai(qbwu@lzb.ac.cn) |
| 英文摘要 | Thermokarst lakes are widely distributed on the Qinghai-Tibetan Plateau (QTP), which accounts for 8% of the global permafrost area. These lakes probably promote organic matter biodegradation and thus accelerate the emission of carbon-based greenhouse gases. However, little is known about greenhouse gas concentrations and their stable isotopes characteristics of these lakes. In this study, we measured the concentrations of dissolved organic carbon (DOC), dissolved CO2 and CH4, as well as the distribution of delta C-13(CO2), delta C-13(CH4), and delta C-13(OM) (organic matter) of lake sediments in thermokarst lakes on the QTP. Results showed that the OM of the lake sediments was highly decomposed. The concentrations of DOC, CO2 and CH4 in the lake water on the QTP were 1.2-49.6 mg L-1, 3.6-45.0 mu mol L-1 and 0.28-3.0 mu mol L-1, respectively. The highest CO2 and CH4 concentrations were recorded in July while the lowest values in September, which suggested that temperature had an effect on greenhouse gas production, although this pattern may also relate to thermal stratification of the water column. The results implied that thermokast lakes should be paid more attention to regarding carbon cycle and greenhouse gas emissions on the QTP. |
| 收录类别 | SCI |
| WOS关键词 | LENA RIVER DELTA ; WESTERN SIBERIA ; PERMAFROST REGION ; NORTHERN SIBERIA ; BEILUHE BASIN ; BOREAL LAKES ; THAW LAKES ; METHANE ; PATHWAYS ; EMISSIONS |
| WOS研究方向 | Marine & Freshwater Biology |
| WOS类目 | Limnology |
| 语种 | 英语 |
| WOS记录号 | WOS:000383780200013 |
| 出版者 | PAGEPRESS PUBL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557454 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhang, Tingjun; Wu, Qingbai |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soil Engn, CAREERI, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst MOE, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mu, Cuicui,Zhang, Tingjun,Wu, Qingbai,et al. Dissolved organic carbon, CO2, and CH4 concentrations and their stable isotope ratios in thermokarst lakes on the Qinghai-Tibetan Plateau[J]. JOURNAL OF LIMNOLOGY,2016,75(2):313-319. |
| APA | Mu, Cuicui.,Zhang, Tingjun.,Wu, Qingbai.,Peng, Xiaoqing.,Zhang, Peng.,...&Cheng, Guodong.(2016).Dissolved organic carbon, CO2, and CH4 concentrations and their stable isotope ratios in thermokarst lakes on the Qinghai-Tibetan Plateau.JOURNAL OF LIMNOLOGY,75(2),313-319. |
| MLA | Mu, Cuicui,et al."Dissolved organic carbon, CO2, and CH4 concentrations and their stable isotope ratios in thermokarst lakes on the Qinghai-Tibetan Plateau".JOURNAL OF LIMNOLOGY 75.2(2016):313-319. |
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来源：寒区旱区环境与工程研究所
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