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Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere

文献类型：期刊论文

作者Yan, Fangping7,8,9; Sillanpaa, Mika9; Kang, Shichang1,6,7; Aho, Kelly Sue5; Qu, Bin4; Wei, Da3; Li, Xiaofei2,7; Li, Chaoliu1,8; Raymond, Peter A.5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
出版日期2018-07-01
卷号123期号:7页码:2091-2103
ISSN号2169-8953
DOI10.1029/2017JG004379
通讯作者Kang, Shichang(shichang.kang@lzb.ac.cn) ; Li, Chaoliu(lichaoliu@itpcas.ac.cn)
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关键词CARBON-DIOXIDE SUPERSATURATION ; DISSOLVED ORGANIC-CARBON ; HUMID/SEMI-ARID REGION ; NITROUS-OXIDE N2O ; CLEAR-WATER LAKE ; LITTORAL-ZONE ; INLAND WATERS ; BOREAL LAKES ; METHANE SUPERSATURATION ; CH4 EMISSIONS
资助项目National Nature Science Foundation of China[41675130] ; National Nature Science Foundation of China[41630754] ; National Nature Science Foundation of China[41721091] ; National Nature Science Foundation of China[4171101266] ; Chinese Academy of Sciences[XDA20040501] ; State Key Laboratory of Cryospheric Science[SKLCS-ZZ-2017]
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
资助机构National Nature Science Foundation of China ; Chinese Academy of Sciences ; State Key Laboratory of Cryospheric Science
源URL[http://ir.ieecas.cn/handle/361006/14581]  
专题地球环境研究所_粉尘与环境研究室
通讯作者Kang, Shichang; Li, Chaoliu
作者单位1.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, KLACP, Xian, Shaanxi, Peoples R China
3.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China
4.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Int Joint Lab Climate & Environm Change, Nanjing, Jiangsu, Peoples R China
5.Yale Univ, Yale Sch Forestry & Environm Studies, New Haven, CT USA
6.Univ Chinese Acad Sci, Beijing, Peoples R China
7.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China
8.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing, Peoples R China
9.Lappeenranta Univ Technol, Dept Green Chem, Sch Engn Sci, Mikkeli, Finland
推荐引用方式
GB/T 7714		 Yan, Fangping,Sillanpaa, Mika,Kang, Shichang,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 Yan, Fangping.,Sillanpaa, Mika.,Kang, Shichang.,Aho, Kelly Sue.,Qu, Bin.,...&Raymond, Peter A..(2018).Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,123(7),2091-2103.
MLA Yan, Fangping,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.

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来源：地球环境研究所

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