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EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA
Wang, Yingcai1,2; Wang, Zhen1,2; Chang, Fengyi1,2; Li, Yanhui1,2; Su, Yanping1,2; Lu, Lanlan1,2; Shen, Yinwu1; Li, Genbao1; Li, Dunhai1; Liu, Yongding1; Liu, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S E Lake Rd, Wuhan 430072, Peoples R China
2009
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume18Issue:3Pages:294-303
AbstractTo 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.; 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.
SubtypeArticle
KeywordRegime Shift Alternative Stable States Eutrophication
Department[Wang, Yingcai; Wang, Zhen; Chang, Fengyi; Li, Yanhui; Su, Yanping; Lu, Lanlan; Shen, Yinwu; Li, Genbao; Li, Dunhai; Liu, Yongding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Wang, Yingcai; Wang, Zhen; Chang, Fengyi; Li, Yanhui; Su, Yanping; Lu, Lanlan] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Subject AreaEnvironmental Sciences
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationChinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002] ; Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002] ; Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002] ; Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000264461800009
WOS KeywordSHALLOW LAKES ; CLEAR WATER ; RESTORATION ; PHOSPHORUS ; NUTRIENT ; EUTROPHICATION ; PHYTOPLANKTON ; MECHANISMS ; VEGETATION ; SEDIMENT
Funding OrganizationChinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002] ; Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002] ; Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002] ; Chinese Academy of Sciences [kzcx2-yw-426]; 973 project [2008CB418002]
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7814
Collection期刊论文
Corresponding AuthorLiu, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S E Lake Rd, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
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, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S E Lake Rd, Wuhan 430072, Peoples R China.(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.
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