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Article: Assessment of ecological system in East River and corresponding ecological restoration strategies

TitleAssessment of ecological system in East River and corresponding ecological restoration strategies
Authors
KeywordsBenthic invertebrate
Biodiversity
East River: restoration strategy
Stream ecology
Issue Date2007
Citation
Shuili Xuebao/Journal Of Hydraulic Engineering, 2007, v. 38 n. 10, p. 1228-1235 How to Cite?
AbstractThe stream ecology of the East River is investigated by using the benthic macro-invertebrates as indicator. Samples were taken from 12 selected sites with different environmental conditions from upper reaches to lower reaches. It is found that the biodiversity and bio-community index of benthic invertebrates maintain a relatively high level respectively in the upper reaches and middle reaches of the river, but they are reduced to nearly zero in the lower reaches. The analysis on samples obtained from the Zengjiang Bay and Xizhijiang Oxbow Lake indicates that the major ecological stress is loss of habitats due to reclamation and separation of riparian water from the river. The restoration strategies are suggested accordingly. The strategies include: 1. creating multiple habitats with high habitat diversity, such as riparian lakes, wetlands, backwater and sluggish flow zones and reconnect separated lakes with the river; 2. adjusting the operation scheme of the upstream reservoir to mitigate the impact induced by instantaneous fluctuation of flow discharge; 3. stabilizing river banks, controlling river erosion and protecting the riverside vegetation.
Persistent Identifierhttp://hdl.handle.net/10722/71866
ISSN
2015 SCImago Journal Rankings: 0.232

 

DC FieldValueLanguage
dc.contributor.authorWang, ZYen_HK
dc.contributor.authorCheng, DSen_HK
dc.contributor.authorDuan, XHen_HK
dc.contributor.authorLee, JHWen_HK
dc.date.accessioned2010-09-06T06:35:52Z-
dc.date.available2010-09-06T06:35:52Z-
dc.date.issued2007en_HK
dc.identifier.citationShuili Xuebao/Journal Of Hydraulic Engineering, 2007, v. 38 n. 10, p. 1228-1235en_HK
dc.identifier.issn0559-9350en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71866-
dc.description.abstractThe stream ecology of the East River is investigated by using the benthic macro-invertebrates as indicator. Samples were taken from 12 selected sites with different environmental conditions from upper reaches to lower reaches. It is found that the biodiversity and bio-community index of benthic invertebrates maintain a relatively high level respectively in the upper reaches and middle reaches of the river, but they are reduced to nearly zero in the lower reaches. The analysis on samples obtained from the Zengjiang Bay and Xizhijiang Oxbow Lake indicates that the major ecological stress is loss of habitats due to reclamation and separation of riparian water from the river. The restoration strategies are suggested accordingly. The strategies include: 1. creating multiple habitats with high habitat diversity, such as riparian lakes, wetlands, backwater and sluggish flow zones and reconnect separated lakes with the river; 2. adjusting the operation scheme of the upstream reservoir to mitigate the impact induced by instantaneous fluctuation of flow discharge; 3. stabilizing river banks, controlling river erosion and protecting the riverside vegetation.en_HK
dc.languageengen_HK
dc.relation.ispartofShuili Xuebao/Journal of Hydraulic Engineeringen_HK
dc.subjectBenthic invertebrateen_HK
dc.subjectBiodiversityen_HK
dc.subjectEast River: restoration strategyen_HK
dc.subjectStream ecologyen_HK
dc.titleAssessment of ecological system in East River and corresponding ecological restoration strategiesen_HK
dc.typeArticleen_HK
dc.identifier.emailLee, JHW: hreclhw@hku.hken_HK
dc.identifier.authorityLee, JHW=rp00061en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-36348937950en_HK
dc.identifier.hkuros154836en_HK
dc.identifier.volume38en_HK
dc.identifier.issue10en_HK
dc.identifier.spage1228en_HK
dc.identifier.epage1235en_HK
dc.identifier.scopusauthoridWang, ZY=22942662700en_HK
dc.identifier.scopusauthoridCheng, DS=16063553400en_HK
dc.identifier.scopusauthoridDuan, XH=23008438800en_HK
dc.identifier.scopusauthoridLee, JHW=36078318900en_HK

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