Methane emissions from newly created marshes in the drawdown area of the Three Gorges Reservoir | |
Chen, Huai1,5; Wu, Yuyuan1,5; Yuan, Xingzhong1,5; Gao, Yongheng2![]() | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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2009-09-19 | |
卷号 | 114页码:doi:10.1029/2009JD012410 |
关键词 | GREENHOUSE-GAS EMISSIONS |
ISSN号 | 2169-897X |
通讯作者 | Chen, Huai |
英文摘要 | The study aimed to understand the methane (CH4) emission and its controlling factors in the Three Gorges Reservoir Region and to explore its implication for large dams. We measured CH4 emissions from four vegetation stands in newly created marshes in the drawdown area of the Three Gorges Reservoir, China, in the summer of 2008. The results showed highly spatial variations of methane emissions among the four stands, with the smallest emission (0.25 +/- 0.65 mg CH4 m(-2) h(-1)) in the Juncus amuricus stand, and the greatest (14.9 +/- 10.9 mg CH4 m(-2) h(-1)) in the Scirpus triqueter stand. We found that the spatial variations of CH4 emissions are caused by difference in standing water depth and dissolved organic carbon (DOC). Results also showed a special seasonal variation of CH4 emissions in this area, i.e., maximal emissions in early July followed by a low and steady value before the winter flooding. The seasonality of CH4 emissions was found closely related to temperature and standing water depth. Because of the large area of the drawdown zones for global dam reservoirs and a large CH4 emission rate, such newly created marshes should not be neglected when estimating CH4 emissions from reservoirs. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Meteorology & Atmospheric Sciences |
研究领域[WOS] | Meteorology & Atmospheric Sciences |
关键词[WOS] | GREENHOUSE-GAS EMISSIONS ; HYDROELECTRIC DAMS ; SEASONAL-VARIATION ; BOREAL LAKES ; PHRAGMITES-AUSTRALIS ; LITTORAL VEGETATION ; SPATIAL VARIATION ; ENERGY-SOURCE ; CH4 ; EFFLUX |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000270056400012 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/10556] ![]() |
专题 | 成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前) 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
作者单位 | 1.Chongqing Univ, Coll Resources & Environm, Chongqing 400030, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 5.Chongqing Univ, Minist Educ, Key Lab Exploitat S W Resources & Environm Disast, Chongqing 400030, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Huai,Wu, Yuyuan,Yuan, Xingzhong,et al. Methane emissions from newly created marshes in the drawdown area of the Three Gorges Reservoir[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2009,114:doi:10.1029/2009JD012410. |
APA | Chen, Huai,Wu, Yuyuan,Yuan, Xingzhong,Gao, Yongheng,Wu, Ning,&Zhu, Dan.(2009).Methane emissions from newly created marshes in the drawdown area of the Three Gorges Reservoir.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,114,doi:10.1029/2009JD012410. |
MLA | Chen, Huai,et al."Methane emissions from newly created marshes in the drawdown area of the Three Gorges Reservoir".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 114(2009):doi:10.1029/2009JD012410. |
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