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Article: Impacts of land use and water quality on macroinvertebrate communities in the Pearl River drainage basin, China

TitleImpacts of land use and water quality on macroinvertebrate communities in the Pearl River drainage basin, China
Authors
KeywordsEast River (Dong Jiang, Chinese words)
Human disturbance
Pollution
Total impervious area
Water quality index
Zhu Jiang (Chinese words)
Issue Date2010
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158
Citation
Hydrobiologia, 2010, v. 652 n. 1, p. 71-88 How to Cite?
AbstractThe East River (Dong Jiang), a major tributary of the Pearl River (Zhu Jiang, the second largest river in China by discharge), is situated in southern China, which has the highest rates of urbanization and development on Earth. The East River also provides 80% of Hong Kong's water supply. However, there have been no ecological studies to examine the combined impacts of changes in land use and water quality degradation on this river ecosystem. We tested the hypothesis that land-use disturbance and water quality degradation would significantly reduce benthic biodiversity in the East River by investigating macroinvertebrate community composition and relating it to data on water quality and catchment condition. The percentage of total impervious area within each catchment (%TIA-an indicator of land-use disturbance) was negatively related to a composite water quality index-the ERWQI-we developed for the East River. Modeling by partial least squares projection to latent structures (PLS) showed that family richness and relative abundance index (RAI) of macroinvertebrates were strongly influenced by both %TIA and ERWQI. Multi-response permutation procedure (MRPP) tests showed highly significant differences in family richness composition and RAI of macroinvertebrates among sites in the upper, middle, and lower course of the East River. MRPP also revealed differences in the family richness composition of nighttime drift samples between upper and middle site groups. Abundance (individuals m-3) and total family richness of drifting macroinvertebrates at each site were positively related to %TIA (range: 1.0-8.5%), while drift biomass was negatively related to dissolved oxygen and positively related to total suspended solids. Thus, human disturbances associated with land-use changes (increasing %TIA) and nutrient inputs severely degraded ecosystem integrity and the water quality of the East River and thereby reduced aquatic biodiversity. © 2010 Springer Science+Business Media B.V.
Persistent Identifierhttp://hdl.handle.net/10722/139851
ISSN
2015 Impact Factor: 2.051
2015 SCImago Journal Rankings: 1.043
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China (NSFC)/Research Grants Council (RGC)50838003
HKU747/03
Pearl River Water Resources Commission
Funding Information:

This study was supported by a National Natural Science Foundation of China (NSFC)/Research Grants Council (RGC) joint research project (50838003 and HKU747/03). We thank the assistance of Lily Chiu Yee Ng, Xuehua Duan, Huaixiang Liu, Fu-Yee Wong, Man-Yee Lam, and many others in the field and in the laboratory. We also deeply appreciate the support of the Pearl River Water Resources Commission during field work.

References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yen_HK
dc.contributor.authorDudgeon, Den_HK
dc.contributor.authorCheng, Den_HK
dc.contributor.authorThoe, Wen_HK
dc.contributor.authorFok, Len_HK
dc.contributor.authorWang, Zen_HK
dc.contributor.authorLee, JHWen_HK
dc.date.accessioned2011-09-23T05:58:17Z-
dc.date.available2011-09-23T05:58:17Z-
dc.date.issued2010en_HK
dc.identifier.citationHydrobiologia, 2010, v. 652 n. 1, p. 71-88en_HK
dc.identifier.issn0018-8158en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139851-
dc.description.abstractThe East River (Dong Jiang), a major tributary of the Pearl River (Zhu Jiang, the second largest river in China by discharge), is situated in southern China, which has the highest rates of urbanization and development on Earth. The East River also provides 80% of Hong Kong's water supply. However, there have been no ecological studies to examine the combined impacts of changes in land use and water quality degradation on this river ecosystem. We tested the hypothesis that land-use disturbance and water quality degradation would significantly reduce benthic biodiversity in the East River by investigating macroinvertebrate community composition and relating it to data on water quality and catchment condition. The percentage of total impervious area within each catchment (%TIA-an indicator of land-use disturbance) was negatively related to a composite water quality index-the ERWQI-we developed for the East River. Modeling by partial least squares projection to latent structures (PLS) showed that family richness and relative abundance index (RAI) of macroinvertebrates were strongly influenced by both %TIA and ERWQI. Multi-response permutation procedure (MRPP) tests showed highly significant differences in family richness composition and RAI of macroinvertebrates among sites in the upper, middle, and lower course of the East River. MRPP also revealed differences in the family richness composition of nighttime drift samples between upper and middle site groups. Abundance (individuals m-3) and total family richness of drifting macroinvertebrates at each site were positively related to %TIA (range: 1.0-8.5%), while drift biomass was negatively related to dissolved oxygen and positively related to total suspended solids. Thus, human disturbances associated with land-use changes (increasing %TIA) and nutrient inputs severely degraded ecosystem integrity and the water quality of the East River and thereby reduced aquatic biodiversity. © 2010 Springer Science+Business Media B.V.en_HK
dc.languageengen_US
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0018-8158en_HK
dc.relation.ispartofHydrobiologiaen_HK
dc.rightsThe original publication is available at www.springerlink.com-
dc.subjectEast River (Dong Jiang, Chinese words)en_HK
dc.subjectHuman disturbanceen_HK
dc.subjectPollutionen_HK
dc.subjectTotal impervious areaen_HK
dc.subjectWater quality indexen_HK
dc.subjectZhu Jiang (Chinese words)en_HK
dc.titleImpacts of land use and water quality on macroinvertebrate communities in the Pearl River drainage basin, Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-8158&volume=652&issue=1&spage=71&epage=88&date=2010&atitle=Impacts+of+land+use+and+water+quality+on+macroinvertebrate+communities+in+the+Pearl+River+drainage+basin,+China.-
dc.identifier.emailDudgeon, D: ddudgeon@hku.hken_HK
dc.identifier.emailLee, JHW: hreclhw@hku.hken_HK
dc.identifier.authorityDudgeon, D=rp00691en_HK
dc.identifier.authorityLee, JHW=rp00061en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s10750-010-0320-xen_HK
dc.identifier.scopuseid_2-s2.0-77954681113en_HK
dc.identifier.hkuros194850en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954681113&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume652en_HK
dc.identifier.issue1en_HK
dc.identifier.spage71en_HK
dc.identifier.epage88en_HK
dc.identifier.isiWOS:000280087900007-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridZhang, Y=35320669000en_HK
dc.identifier.scopusauthoridDudgeon, D=7006559840en_HK
dc.identifier.scopusauthoridCheng, D=16063553400en_HK
dc.identifier.scopusauthoridThoe, W=19934623900en_HK
dc.identifier.scopusauthoridFok, L=19933387900en_HK
dc.identifier.scopusauthoridWang, Z=36563043700en_HK
dc.identifier.scopusauthoridLee, JHW=36078318900en_HK
dc.identifier.citeulike7472808-

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