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

doi:10.1029/2017JG004379

IEECAS OpenIR > 粉尘与环境研究室

	Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere
	Yan, Fangping 1,2,3; Sillanpaa, Mika 1; Kang, Shichang 3,4,5; Aho, Kelly Sue 6; Qu, Bin 7; Wei, Da 8; Li, Xiaofei 3,9; Li, Chaoliu 2,4; Raymond, Peter A.6
通讯作者	Kang, Shichang(shichang.kang@lzb.ac.cn) ; Li, Chaoliu(lichaoliu@itpcas.ac.cn)
	2018-07-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN	2169-8953
卷号	123 期号:7 页码:2091-2103
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.
DOI	10.1029/2017JG004379
关键词[WOS]	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
收录类别	SCI ; SCI
语种	英语
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
项目资助者	National Nature Science Foundation of China ; Chinese Academy of Sciences ; State Key Laboratory of Cryospheric Science
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS记录号	WOS:000450067500005
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14582
专题	粉尘与环境研究室
通讯作者	Kang, Shichang; Li, Chaoliu
作者单位	1.Lappeenranta Univ Technol, Dept Green Chem, Sch Engn Sci, Mikkeli, Finland 2.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing, Peoples R China 3.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 5.Univ Chinese Acad 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	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.