SPATIOTEMPORAL DISTRIBUTION OF DOC AND DON IN WATER AFTER DAMMING OF THE THREE GORGES RESERVOIR

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	SPATIOTEMPORAL DISTRIBUTION OF DOC AND DON IN WATER AFTER DAMMING OF THE THREE GORGES RESERVOIR
	Yang, Gang 6; Tian, Jianqing 4; Chen, Huai 5,6; Yuan, Xingzhong 3; Zhu, Qiuan 6; Zhu, Dan 5; Peng, Changhui 2,6; Wu, Jianghua 1
刊名	FRESENIUS ENVIRONMENTAL BULLETIN
	2013
卷号	22 期号:11 页码:3192-3198
关键词	Carbon dynamics nitrogen cycling hydrology aquatic ecosystems reservoir
ISSN号	1018-4619
产权排序	2
文献子类	Article
英文摘要	Large reservoirs always influence water environment, the change of which in turn has direct impacts on biogeochemical cycles. In this study, we measured dissolved organic carbon (DOC) and dissolved organic nitrogen (DON) in the water of the Three Gorges Reservoir Region (TGRR) from February to September of 2008 at seven sites, in order to understand the spatiotemporal features of DOC and DON in this region after the dam impoundment. The concentration of DOC in water collected at all sites ranged from 0.02 to 54.48 mg.L-1 (average 3.85 mg.L-1), and for DON the range was 0.01 to 2.60 mg.L-1 (average 0.88 mg.L-1). The concentration of DOC was the highest at Sandouping, immediately before the dam, ranging from 1.65 to 54.48 mg.L-1 (average of 11.41 mg.L-1), much higher than the average value for several other reservoirs. It is probably because a large amount of organic matter from upstream erosion was accumulated at the reservoir. Through measurement of the DOC, DON and total carbon (TC) along the TGRR, we did not find vertical variation except for DON. However, we noticed a fluctuation of DOC and DON with time. Moreover, we found DOC concentration for the drawdown area was markedly lower than that of the permanently flooded sites. This was partly because the drawdown area provided a relatively long retention time for the microbial community to decompose the soluble carbon substrate. These results were consistent with our previous study reporting a high CH4 emission in the drawdown area of the TGRR.
学科主题	Environment ; Ecology
URL标识	查看原文
WOS关键词	DISSOLVED ORGANIC-CARBON ; RIVER ; NITROGEN ; PHOSPHORUS ; DYNAMICS ; IMPOUNDMENT ; IMPACT ; MATTER ; FLOW ; DAM
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PARLAR SCIENTIFIC PUBLICATIONS (P S P)
WOS记录号	WOS:000327575700011
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29833]
专题	生物多样性与生态系统服务领域_生态研究
作者单位	1.Mem Univ Newfoundland, Corner Brook, NF A2H 6P9, Canada 2.Univ Quebec, Inst Environm Sci, Montreal, PQ H2X 3Y7, Canada; 3.Chongqing Univ, Coll Resources & Environm, Chongqing 400030, Peoples R China; 4.Chinese Acad Sci, Inst Microbiol, State Key Lab Mycol, Beijing 100101, Peoples R China; 5.Chinese Acad Sci, Chengdu Inst Biol, Beijing 100864, Peoples R China; 6.Northwest A&F Univ, Coll Forestry, Lab Ecol Forecasting & Global Change, Yangling 712100, Peoples R China;
推荐引用方式 GB/T 7714	Yang, Gang,Tian, Jianqing,Chen, Huai,et al. SPATIOTEMPORAL DISTRIBUTION OF DOC AND DON IN WATER AFTER DAMMING OF THE THREE GORGES RESERVOIR[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(11):3192-3198.
APA	Yang, Gang.,Tian, Jianqing.,Chen, Huai.,Yuan, Xingzhong.,Zhu, Qiuan.,...&Wu, Jianghua.(2013).SPATIOTEMPORAL DISTRIBUTION OF DOC AND DON IN WATER AFTER DAMMING OF THE THREE GORGES RESERVOIR.FRESENIUS ENVIRONMENTAL BULLETIN,22(11),3192-3198.
MLA	Yang, Gang,et al."SPATIOTEMPORAL DISTRIBUTION OF DOC AND DON IN WATER AFTER DAMMING OF THE THREE GORGES RESERVOIR".FRESENIUS ENVIRONMENTAL BULLETIN 22.11(2013):3192-3198.