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

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Title: EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA.
Authors: Yingcai Wang1,2, Zhen Wan1,2, Fengyi Chang1,2, Yanhui Li1,2, Yanping Su1,2, Lanlan Lu1,2, Yinwu Shen1, Genbao Li1, Dunhai Li1, Yongding Liu1 liuyd@ihb.ac.cn
Source: Fresenius Environmental Bulletin. 2009, Vol. 18 Issue 3, p294-303. 10p. 1 Graph.
Subject Terms: *Biotic communities, *Aquatic ecology, *Environmental remediation, *Environmental engineering, *Population biology, *Lakes
Geographic Terms: China
Abstract: 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 con- trolled 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 <106 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*Xb (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. [ABSTRACT FROM AUTHOR]
Copyright of Fresenius Environmental Bulletin is the property of PRT-Parlar Research & Technology and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yingcai+Wang%22&quot;&gt;Yingcai Wang&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Zhen+Wan%22&quot;&gt;Zhen Wan&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Fengyi+Chang%22&quot;&gt;Fengyi Chang&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yanhui+Li%22&quot;&gt;Yanhui Li&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yanping+Su%22&quot;&gt;Yanping Su&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lanlan+Lu%22&quot;&gt;Lanlan Lu&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yinwu+Shen%22&quot;&gt;Yinwu Shen&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Genbao+Li%22&quot;&gt;Genbao Li&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Dunhai+Li%22&quot;&gt;Dunhai Li&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Yongding+Liu%22&quot;&gt;Yongding Liu&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;i&gt; liuyd@ihb.ac.cn&lt;/i&gt;
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Fresenius+Environmental+Bulletin%22&quot;&gt;Fresenius Environmental Bulletin&lt;/searchLink&gt;. 2009, Vol. 18 Issue 3, p294-303. 10p. 1 Graph.
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  Data: *&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Biotic+communities%22&quot;&gt;Biotic communities&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Aquatic+ecology%22&quot;&gt;Aquatic ecology&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Environmental+remediation%22&quot;&gt;Environmental remediation&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Environmental+engineering%22&quot;&gt;Environmental engineering&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Population+biology%22&quot;&gt;Population biology&lt;/searchLink&gt;&lt;br /&gt;*&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Lakes%22&quot;&gt;Lakes&lt;/searchLink&gt;
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22China%22&quot;&gt;China&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: 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 con- trolled ecosystem to switch. There is a threshold existing in treated enclosure ecosystem during the conversion from turbid to clean state. When TP &lt;0.09 mg.L-1, Chl-a &lt;0.036 mg.L-1, transparency &gt;62 cm, TN &lt;2.15 mg.L-1, CODMn &lt;13.7 mg.L-1, tubidity &lt;10, and the number of algal cells &lt;106 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*Xb (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. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: &lt;i&gt;Copyright of Fresenius Environmental Bulletin is the property of PRT-Parlar Research &amp; Technology and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 294
    Subjects:
      – SubjectFull: Biotic communities
        Type: general
      – SubjectFull: Aquatic ecology
        Type: general
      – SubjectFull: Environmental remediation
        Type: general
      – SubjectFull: Environmental engineering
        Type: general
      – SubjectFull: Population biology
        Type: general
      – SubjectFull: Lakes
        Type: general
      – SubjectFull: China
        Type: general
    Titles:
      – TitleFull: EXPERIMENTS ON AQUATIC ECOSYSTEM REGIME SHIFT IN ENCLOSURES NEAR LAKE DIANCHI, CHINA.
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            NameFull: Yingcai Wang
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            NameFull: Zhen Wan
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            NameFull: Fengyi Chang
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            NameFull: Yanhui Li
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            NameFull: Yanping Su
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            NameFull: Lanlan Lu
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            NameFull: Yinwu Shen
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            NameFull: Genbao Li
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            NameFull: Dunhai Li
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            NameFull: Yongding Liu
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            – D: 01
              M: 03
              Text: 2009
              Type: published
              Y: 2009
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              Value: 18
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            – TitleFull: Fresenius Environmental Bulletin
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