Unexpected CH4 emission from the Three Gorges Reservoir and its implications

	Unexpected CH4 emission from the Three Gorges Reservoir and its implications
	Lin Liu 2; Huai Chen 1,3,4; Xingzhong Yuan 5; Zhongli Chen 5; Yuyuan Wu 5
刊名	Acta Ecologica Sinica
	2011
卷号	31 期号:2011 页码:233-234
关键词	Hydroelectric dam GHG Climate change Global warming DOC Carbon cycling Wetlands
ISSN号	1872-2032
产权排序	4
文献子类	Article
英文摘要	Until the end of last century, scientists began to show their concern about greenhouse gas emission from reservoirs and questioned the ‘‘green credential’’ of hydroelectric dams since then. Through measurements along the channel of the TGR, an unexpectedly low CH4 emission rate was recently observed from the surface of the TGR, much lower than our assumed estimate before. Moreover, the rate from the TGR is lower than that from many hydroelectric reservoirs. One possible reason for such a low emission rate is that lack of substrates supplied by decomposed vegetation limits the CH4 production in the sediment of the TGR because of vegetation clearance since 2002 before impounding, whose primary purpose is to conserve the water quality. These results indicated that TGR is not a hotspot of CH4 emission. On a broader sense, it also indicated that removal of flooded vegetation would help to decrease CH4 emission from dam reservoirs before impounding, especially in the drawdown area.
学科主题	Environment ; Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29857]
专题	成都生物研究所_生态研究
作者单位	1.Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; 2.College of Animal Science and Technology, Sichuan Agriculture University, Ya’an 625014, China; 3.Laboratory for Ecological Forecasting and Global Change, College of Forestry, Northwest Agriculture and Forest University, Yanglin 712100, China; 4.Institut des Sciences de l’Environnement, Université du Québec à Montréal (UQAM), 201 Président-Kennedy, Montréal, QC, Canada H2X 3Y7; 5.College of Resources and Environment, Chongqing University, Chongqing 400030, China
推荐引用方式 GB/T 7714	Lin Liu,Huai Chen,Xingzhong Yuan,et al. Unexpected CH4 emission from the Three Gorges Reservoir and its implications[J]. Acta Ecologica Sinica,2011,31(2011):233-234.
APA	Lin Liu,Huai Chen,Xingzhong Yuan,Zhongli Chen,&Yuyuan Wu.(2011).Unexpected CH4 emission from the Three Gorges Reservoir and its implications.Acta Ecologica Sinica,31(2011),233-234.
MLA	Lin Liu,et al."Unexpected CH4 emission from the Three Gorges Reservoir and its implications".Acta Ecologica Sinica 31.2011(2011):233-234.