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Evaluation of management scenarios for controlling eutrophication in a shallow tropical urban lake

Xing, Zikun, Chua, Lloyd H.C. and Imberger, Jorg 2014, Evaluation of management scenarios for controlling eutrophication in a shallow tropical urban lake, International journal of environmental pollution and remediation, vol. 2, no. 2, pp. 66-72.

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Title Evaluation of management scenarios for controlling eutrophication in a shallow tropical urban lake
Author(s) Xing, Zikun
Chua, Lloyd H.C.
Imberger, Jorg
Journal name International journal of environmental pollution and remediation
Volume number 2
Issue number 2
Start page 66
End page 72
Total pages 7
Publisher Avestia Publishing
Place of publication Ottawa, Ont.
Publication date 2014
ISSN 1929-2732
Keyword(s) eutrophication
shallow tropical urban lake
management scenario
Summary Urban lakes are typically smaller, shallower, and more exposed to human activities than natural lakes. Although the effects of harmful algal blooms (HABs) associated with eutrophication in urban lakes has become a growing concern for water resources management and environmental protection, studies focussing on this topic in relation to urban lakes are rare and knowledge of the ecological dynamics and effective management strategies for controlling eutrophication in urban lakes is lacking. This study applied an integrated three-dimensional hydrodynamics-ecological model for a small shallow tropical urban lake in Singapore and evaluated various management scenarios to control eutrophication in the lake. It is found that in-lake treatment techniques including artificial destratification, sediment manipulation and algaecide addition are either ineffective or possess environmental concerns; while watershed management strategies including hydraulic flushing and inflow nutrients reduction are more effective and have posed less environmental concerns. In this study, inflow phosphorus reduction was found to be the best strategy after evaluating the advantages and drawbacks of the management strategies studied. Runoff from the watershed exerts significant influence on urban lakes and thus an integrated water resources management at the watershed level is critical for the control of eutrophication
Language eng
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C2.1 Other contribution to refereed journal
Copyright notice ©2014, Avestia Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30063845

Document type: Journal Article
Collections: School of Engineering
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.