Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere
文献类型：期刊论文
| 作者 | Li, XF (Li, Xiaofei)9; Yan, FP (Yan, Fangping)2,3,4; Sillanpaa, M (Sillanpaa, Mika)2; Kang, SC (Kang, Shichang)1,4,5; Aho, KS (Aho, Kelly Sue)6; Qu, B (Qu, Bin)7; Wei, D (Wei, Da)8; Li, CL (Li, Chaoliu)3,5; Raymond, PA (Raymond, Peter A.)6 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 123期号:7页码:2091-2103 |
| 关键词 | CARBON-DIOXIDE SUPERSATURATION DISSOLVED ORGANIC-CARBON HUMID/SEMI-ARID REGION NITROUS-OXIDE N2O CLEAR-WATER LAKE LITTORAL-ZONE METHANE SUPERSATURATION INLAND WATERS CH4 EMISSIONS BOREAL LAKES |
| ISSN号 | 2169-8953 |
| DOI | 10.1029/2017JG004379 |
| 英文摘要 | Lakes play an important role in the global carbon cycle, and littoral zones of lakes are potential hotspots of greenhouse gas production. In this study, we measured the partial pressures of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) in the littoral zones of 17 lakes on the Tibetan Plateau. The littoral zones of lakes on the Tibetan Plateau were supersaturated and acted as sources of CO2, CH4, and N2O to the atmosphere. The average partial pressures of CO2, CH4, and N2O in the surface lake water were 664.8 +/- 182.5, 139.8 +/- 335.6, and 0.3 +/- 0.1 mu atm, respectively. The average diffusive fluxes (and uncentainty intervals) of these three gases were 73.7 (0.9-295.3) mu mol . m(-2) . day(-1), 5.2 (0.0008-45.9) mu mol . m(-2) . day(-1), and 6.5 (0.07-20.9) mu mol . m(-2) . day(-1), respectively. The diffusive fluxes of CO2 in lakes were significantly correlated with dissolved organic carbon, dissolved organic nitrogen, salinity, and water temperature. The diffusive fluxes of N2O were significantly correlated with lake water depth. However, no relationships were found between environmental factors and the CH4 diffusive flux at the scale of this study. CO2 exchange with the atmosphere from saline lakes was found to be higher than from freshwater lakes with equivalent CO2 concentrations by a factor of 2.5 due to chemical enhancement of the gas transfer velocity. Therefore, further study with enhanced spatiotemporal resolution and breadth is needed to better understand the important role played by lakes on the Tibetan Plateau in both regional and global carbon cycles. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000450067500005 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8601]  |
| 专题 | 青藏高原研究所_图书馆 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China; 2.Lappeenranta Univ Technol, Dept Green Chem, Sch Engn Sci, Mikkeli, Finland; 3.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing, Peoples R China; 4.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China; 5.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China; 6.Yale Univ, Yale Sch Forestry & Environm Studies, New Haven, CT USA; 7.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Int Joint Lab Climate & Environm Change, Nanjing, Jiangsu, Peoples R China; 8.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China; 9.Chinese Acad Sci, Inst Earth Environm, KLACP, Xian, Shaanxi, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, XF ,Yan, FP ,Sillanpaa, M ,et al. Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2018,123(7):2091-2103. |
| APA | Li, XF .,Yan, FP .,Sillanpaa, M .,Kang, SC .,Aho, KS .,...&Raymond, PA .(2018).Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,123(7),2091-2103. |
| MLA | Li, XF ,et al."Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 123.7(2018):2091-2103. |
入库方式： OAI收割
来源：青藏高原研究所
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