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Methane Oxidation in the Water Column of Xiangxi Bay, Three Gorges Reservoir

文献类型：期刊论文

作者Lei, Dan1,2,5; Liu, Jia1; Zhang, Junwei1; Lorke, Andreas4; Xiao, Shangbin1; Wang, Yuchun3; Wang, Wei1; Li, Ye2
刊名CLEAN-SOIL AIR WATER
出版日期2019-09-01
卷号47期号:9页码:9
关键词methane emission methane oxidation reservoirs Three Gorges Reservoir Xiangxi Bay
ISSN号1863-0650
DOI10.1002/clen.201800516
通讯作者Li, Ye(whly1218@126.com)
英文摘要Four field campaigns are carried out to quantify the methane (CH4) oxidation rate in Xiangxi Bay (XXB) of the Three Gorges Reservoir (TGR), China. The water depth of the sampling site varied from 13 to 30 m resulting from the water level fluctuation of the TGR. The CH4 oxidation rates are measured in situ as the decline of dissolved CH4 concentration versus time in incubated, and those rates. The CH4 oxidation rates range from 1.18 x 10(-3) to 3.69 x 10(-3 )mu mol L-1 h(-1), with higher values and stronger variation during summer. A static floating chamber method is used to measure CH4 emitted to the atmosphere resulting in an annual mean flux of 4.79 mu mol m(-2) h(-1). The CH4 emission rate is significantly negatively correlated with the water level. The results show that a large fraction of CH4 is consumed in the water column with a range of 28.97-55.90 mu mol m(-2) h(-1), accounting for approximate to 69-98% of the total CH4 input into the water column, and more than 90% is consumed outside the summer, when the water level is lowest. Water depth, which is dominated by water level of the TGR, is a potentially important driver for CH4 oxidation and atmospheric emission in the tributary bay.
WOS关键词GREENHOUSE-GAS EMISSIONS ; SURFACE-LAYER ; DISSOLVED METHANE ; LAKE ; FLUXES ; SEDIMENT ; CH4 ; CO2
资助项目State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1609] ; National Science Foundation of China[51979148] ; National Science Foundation of China[51879099] ; China Three Gorges Corporation[SDHZ201510]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种英语
WOS记录号WOS:000486801900001
出版者WILEY
资助机构State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; National Science Foundation of China ; China Three Gorges Corporation
源URL[http://ir.ieecas.cn/handle/361006/13339]  
专题地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者Li, Ye
作者单位1.China Three Gorges Univ, Coll Hydraul & Environm Engn, Yichang 443002, Peoples R China
2.Wuhan Univ Technol, Sch Resource & Environm Engn, Wuhan 430070, Hubei, Peoples R China
3.China Inst Water Resources & Hydropower Res, Dept Water Environm, Beijing 100083, Peoples R China
4.Univ Koblenz Landau, Inst Environm Sci, D-76829 Landau, Germany
5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Lei, Dan,Liu, Jia,Zhang, Junwei,et al. Methane Oxidation in the Water Column of Xiangxi Bay, Three Gorges Reservoir[J]. CLEAN-SOIL AIR WATER,2019,47(9):9.
APA Lei, Dan.,Liu, Jia.,Zhang, Junwei.,Lorke, Andreas.,Xiao, Shangbin.,...&Li, Ye.(2019).Methane Oxidation in the Water Column of Xiangxi Bay, Three Gorges Reservoir.CLEAN-SOIL AIR WATER,47(9),9.
MLA Lei, Dan,et al."Methane Oxidation in the Water Column of Xiangxi Bay, Three Gorges Reservoir".CLEAN-SOIL AIR WATER 47.9(2019):9.

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来源：地球环境研究所

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