EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA

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	EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA
	Wang, Yingcai 1,2; Wang, Zhen 1,2; Chang, Fengyi 1,2; Li, Yanhui 1,2; Su, Yanping 1,2; Lu, Lanlan 1,2; Shen, Yinwu 1; Li, Genbao 1; Li, Dunhai 1; Liu, Yongding 1
刊名	FRESENIUS ENVIRONMENTAL BULLETIN
	2009
卷号	18 期号:3 页码:294-303
关键词	regime shift alternative stable states eutrophication
ISSN号	1018-4619
通讯作者	Liu, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S E Lake Rd, Wuhan 430072, Peoples R China
中文摘要	To discover how a lake converts from a turbid state to clean state, and what drives this process, we constructed controlled enclosure ecosystems and used the ecological remediation method to force ecosystems to convert from the turbid state to the clean state. Our results show that the driving forces include temperature., macrophyte, silver carp and mussel, which form a combined force to drive the controlled ecosystem to switch. There is a threshold existing in treated enclosure ecosystem during the conversion from turbid to clean state. When TP <0.09 mg.L-1, Chl-a <0.036 mg.L-1, transparency >62 cm, TN <2.15 mg.L-1, CODMn <13.7 mg.L-1, tubidity <10, and the number of algal cells <10(6) cells.L-1, the treated ecosystem changes sharply from turbid to clean state. The conversion process can be divided into three phases: turbid state, clean-turbid transitional state as well as clean state, and described with the power function Y = a*X-b (where Y is water parameter, X is time, a and b are constants), which indicates that the shift in the enclosure ecosystem from turbid to clean state is discontinuous.
英文摘要	To discover how a lake converts from a turbid state to clean state, and what drives this process, we constructed controlled enclosure ecosystems and used the ecological remediation method to force ecosystems to convert from the turbid state to the clean state. Our results show that the driving forces include temperature., macrophyte, silver carp and mussel, which form a combined force to drive the controlled ecosystem to switch. There is a threshold existing in treated enclosure ecosystem during the conversion from turbid to clean state. When TP <0.09 mg.L(-1), Chl-a <0.036 mg.L(-1), transparency >62 cm, TN <2.15 mg.L(-1), COD(Mn) <13.7 mg.L(-1), tubidity <10, and the number of algal cells <10(6) cells.L(-1), the treated ecosystem changes sharply from turbid to clean state. The conversion process can be divided into three phases: turbid state, clean-turbid transitional state as well as clean state, and described with the power function Y = a*X(b) (where Y is water parameter, X is time, a and b are constants), which indicates that the shift in the enclosure ecosystem from turbid to clean state is discontinuous.
学科主题	Environmental Sciences
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	SHALLOW LAKES ; CLEAR WATER ; RESTORATION ; PHOSPHORUS ; NUTRIENT ; EUTROPHICATION ; PHYTOPLANKTON ; MECHANISMS ; VEGETATION ; SEDIMENT
收录类别	SCI
资助信息	Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002]
语种	英语
WOS记录号	WOS:000264461800009
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/7814]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yingcai,Wang, Zhen,Chang, Fengyi,et al. EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2009,18(3):294-303.
APA	Wang, Yingcai.,Wang, Zhen.,Chang, Fengyi.,Li, Yanhui.,Su, Yanping.,...&Liu, Yongding.(2009).EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,18(3),294-303.
MLA	Wang, Yingcai,et al."EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 18.3(2009):294-303.