IHB OpenIR  > 淡水生态学研究中心  > 期刊论文
Impacts of cascade run-of-river dams on benthic diatoms in the Xiangxi River, China
Wu, N.; Tang, T.; Fu, X.; Jiang, W.; Li, F.; Zhou, S.; Cai, Q.; Fohrer, N.; Cai, Q, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2010
Source PublicationAQUATIC SCIENCES
ISSN1015-1621
Volume72Issue:1Pages:117-125
AbstractThe ecological effects of small run-of-river dams on aquatic ecosystems are poorly understood, especially on downstream benthic algal communities. We examined impacts of such dams on the benthic diatom community at a regional scale in the Xiangxi River, China. A total of 90 sites were visited, which were divided into five habitats (H1-H5) according to impact extent of each dam. Using partial least squares (PLS) modeling, we developed two predictive models (diatom species richness and total diatom density) based on environmental variables of an unregulated habitat (H1). These models were then used to predict species richness and total densities at impacted habitats (H2-H5) and residuals, i.e. the differences between observed and predicted values, were used to evaluate impact strength of flow regulation. Significant impacts of flow regulation on diatom species richness were detected at three impacted habitats (H3-H5), where observed species richness were significantly higher-70.6, 63.9 and 46.6%, respectively-than predicted values. Then, possible mechanisms for observed impacts were discussed. Further research is necessary to address the potential negative impacts of cascade run-of-river dams on other aquatic organisms in different seasons, and to explore more appropriate mechanisms for such impacts, which may lead to sustainable management strategies and help to determine the optimal ecological water requirement for the Xiangxi River.
KeywordBenthic Diatoms Cascade Run-of-river Dams Pls Models Xiangxi River
Department[Wu, N.; Tang, T.; Fu, X.; Jiang, W.; Li, F.; Zhou, S.; Cai, Q.] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China; [Wu, N.; Fohrer, N.] Univ Kiel, Dept Hydrol & Water Resource Management, Ctr Ecol, D-24118 Kiel, Germany
Subject AreaEnvironmental Sciences ; Limnology ; Marine & Freshwater Biology
Funding OrganizationNational Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427]
Indexed BySCI
Language英语
WOS IDWOS:000272901900010
Funding OrganizationNational Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW427]
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13562
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorCai, Q, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Wu, N.,Tang, T.,Fu, X.,et al. Impacts of cascade run-of-river dams on benthic diatoms in the Xiangxi River, China[J]. AQUATIC SCIENCES,2010,72(1):117-125.
APA Wu, N..,Tang, T..,Fu, X..,Jiang, W..,Li, F..,...&Cai, Q, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China.(2010).Impacts of cascade run-of-river dams on benthic diatoms in the Xiangxi River, China.AQUATIC SCIENCES,72(1),117-125.
MLA Wu, N.,et al."Impacts of cascade run-of-river dams on benthic diatoms in the Xiangxi River, China".AQUATIC SCIENCES 72.1(2010):117-125.
Files in This Item:
File Name/Size DocType Version Access License
Impacts of cascade r(314KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wu, N.]'s Articles
[Tang, T.]'s Articles
[Fu, X.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wu, N.]'s Articles
[Tang, T.]'s Articles
[Fu, X.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wu, N.]'s Articles
[Tang, T.]'s Articles
[Fu, X.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Impacts of cascade run-of-river dams on benthic diatoms.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.