IHB OpenIR  > 淡水生态学研究中心  > 期刊论文
Using temporal coherence to determine the responses of water clarity to hydrological processes in a giant subtropical canyon-shaped reservoir (China)
Xu, Yaoyang; Shao, Meiling; Cao, Ming; Zhou, Shuchan; Cai, Qinghua; Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2010
Source PublicationQUATERNARY INTERNATIONAL
ISSN1040-6182
Volume226Issue:40180Pages:151-159
AbstractInvestigating whether different locations of a large lake exhibit synchronous or asynchronous fluctuations in limnological characteristics is essential to lake management. If synchronous fluctuations (termed as "temporal coherence") among sites are found to prevail, regional factors are likely to be the drivers; otherwise, local factors may be dominant. Here, this idea is tested at two spatial scales: the large scale being the mainstream of Three-Gorges reservoir (TGR, China) and the small scale being Xiangxi Bay of TGR. Data of transparency and chlorophyll a were gathered monthly at 26 sampling sites from July 2003 to July 2006 to evaluate temporal coherence for water clarity. High spatial and temporal variation in transparency (4-510 cm) and chlorophyll a (0.1-190.2 mu g/L) mark the system. For the mainstream of TGR, significant high temporal coherence of water clarity among sites (correlation analysis: 0.872 <= r <= 0.991, mean r = 0.960) was detected and the among-site correlations showed no significant relationship with geographical distance (Mantel test: r = -0.186, p > 0.05) or chlorophyll a (Mantel test: r = 0.249, p > 0.05). By contrast within Xiangxi Bay, lower synchronous fluctuations (correlation analysis: 0.396 <= r <= 0.971, mean r = 0.785) occurred, and the among-site correlations decreased with an increase in geographical distance (Mantel test: r = -0.715, p <0.01) and a decrease in temporal coherence of chlorophyll a (Mantel test: r = 0.893, p <0.01). Seasonal dynamics of water clarity were very well explained by inflow discharges (regression analysis: 0.771 <= R-2 <= 0.906) and water residence time (0.782 <= R-2 <= 0.918) in the mainstream, but not in Xiangxi Bay. The high coherency of the dynamics of water clarity in TGR mainstream is likely caused by regional hydrological processes driven by subtropical monsoon climate. For Xiangxi Bay, local processes such as phytoplankton dynamics may override the regional effects of hydrological processes, because the water clarity of this bay is strongly determined by phytoplankton bloom dynamics. (C) 2010 Elsevier Ltd and INQUA. All rights reserved.
KeywordParana River Floodplain Lake Chemical Responses Climate-change Different Environments Synchronous Variation Northern Wisconsin Gorges Reservoir Great-lakes Xiangxi Bay Population
Department[Xu, Yaoyang; Shao, Meiling; Cao, Ming; Zhou, Shuchan; Cai, Qinghua] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Xu, Yaoyang; Cao, Ming] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Subject AreaGeography, Physical ; Geosciences, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427]
Indexed BySCI
Language英语
WOS IDWOS:000283815300020
Funding OrganizationNational Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427] ; National Natural Science Foundation of China [30330140, 40671197]; CAS [KZCX2-YW-427]
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13506
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorCai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Xu, Yaoyang,Shao, Meiling,Cao, Ming,et al. Using temporal coherence to determine the responses of water clarity to hydrological processes in a giant subtropical canyon-shaped reservoir (China)[J]. QUATERNARY INTERNATIONAL,2010,226(40180):151-159.
APA Xu, Yaoyang,Shao, Meiling,Cao, Ming,Zhou, Shuchan,Cai, Qinghua,&Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2010).Using temporal coherence to determine the responses of water clarity to hydrological processes in a giant subtropical canyon-shaped reservoir (China).QUATERNARY INTERNATIONAL,226(40180),151-159.
MLA Xu, Yaoyang,et al."Using temporal coherence to determine the responses of water clarity to hydrological processes in a giant subtropical canyon-shaped reservoir (China)".QUATERNARY INTERNATIONAL 226.40180(2010):151-159.
Files in This Item:
File Name/Size DocType Version Access License
Using temporal coher(509KB) 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
[Xu, Yaoyang]'s Articles
[Shao, Meiling]'s Articles
[Cao, Ming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Yaoyang]'s Articles
[Shao, Meiling]'s Articles
[Cao, Ming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Yaoyang]'s Articles
[Shao, Meiling]'s Articles
[Cao, Ming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Using temporal coherence to determine the responses of water clarity to hydrological processes in a giant subtropical canyon-shaped reservoir (China).pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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