IHB OpenIR  > 期刊论文
The influence of topography and land use on water quality of Xiangxi River in Three Gorges Reservoir region
Ye, Lin; Cai, Qing-hua; Liu, Rui-qiu; Cao, Ming; Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Chinese Ecosyst Res Network,Res Ctr Aquat Ecosyst, Wuhan 430072, Peoples R China
2009-09-01
Source PublicationENVIRONMENTAL GEOLOGY
ISSN0943-0105
Volume58Issue:5Pages:937-942
AbstractA self-organizing map (SOM) was used to cluster the water quality data of Xiangxi River in the Three Gorges Reservoir region. The results showed that 81 sampling sites could be divided into several groups representing different land use types. The forest dominated region had low concentrations of most nutrient variables except COD, whereas the agricultural region had high concentrations of NO3N, TN, Alkalinity, and Hardness. The sites downstream of an urban area were high in NH3N, NO2N, PO4P and TP. Redundancy analysis was used to identify the individual effects of topography and land use on river water quality. The results revealed that the watershed factors accounted for 61.7% variations of water quality in the Xiangxi River. Specifically, topographical characteristics explained 26.0% variations of water quality, land use explained 10.2%, and topography and land use together explained 25.5%. More than 50% of the variation in most water quality variables was explained by watershed characteristics. However, water quality variables which are strongly influenced by urban and industrial point source pollution (NH3N, NO2N, PO4P and TP) were not as well correlated with watershed characteristics.; A self-organizing map (SOM) was used to cluster the water quality data of Xiangxi River in the Three Gorges Reservoir region. The results showed that 81 sampling sites could be divided into several groups representing different land use types. The forest dominated region had low concentrations of most nutrient variables except COD, whereas the agricultural region had high concentrations of NO3N, TN, Alkalinity, and Hardness. The sites downstream of an urban area were high in NH3N, NO2N, PO4P and TP. Redundancy analysis was used to identify the individual effects of topography and land use on river water quality. The results revealed that the watershed factors accounted for 61.7% variations of water quality in the Xiangxi River. Specifically, topographical characteristics explained 26.0% variations of water quality, land use explained 10.2%, and topography and land use together explained 25.5%. More than 50% of the variation in most water quality variables was explained by watershed characteristics. However, water quality variables which are strongly influenced by urban and industrial point source pollution (NH3N, NO2N, PO4P and TP) were not as well correlated with watershed characteristics.
SubtypeArticle
KeywordLand Use Redundancy Analysis (Rda) Self-organizing Map (Som) Topography Water Quality
Department[Ye, Lin; Cai, Qing-hua; Liu, Rui-qiu; Cao, Ming] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Chinese Ecosyst Res Network,Res Ctr Aquat Ecosyst, Wuhan 430072, Peoples R China
Subject AreaEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
DOI10.1007/s00254-008-1573-9
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427]; ; National Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427]; ; National Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427]; ; National Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427];
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000269014000003
WOS KeywordSTREAM ECOSYSTEMS ; EUTROPHICATION ; DYNAMICS ; BLOOM ; BAY
Funding OrganizationNational Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427]; ; National Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427]; ; National Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427]; ; National Natural Science Foundation of China [30330140, 40671197]; Key Project of Knowledge Innovation Program [KZCX2-YW-427];
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7612
Collection期刊论文
Corresponding AuthorCai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Chinese Ecosyst Res Network,Res Ctr Aquat Ecosyst, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Chinese Ecosyst Res Network,Res Ctr Aquat Ecosyst, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Ye, Lin,Cai, Qing-hua,Liu, Rui-qiu,et al. The influence of topography and land use on water quality of Xiangxi River in Three Gorges Reservoir region[J]. ENVIRONMENTAL GEOLOGY,2009,58(5):937-942.
APA Ye, Lin,Cai, Qing-hua,Liu, Rui-qiu,Cao, Ming,&Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Chinese Ecosyst Res Network,Res Ctr Aquat Ecosyst, Wuhan 430072, Peoples R China.(2009).The influence of topography and land use on water quality of Xiangxi River in Three Gorges Reservoir region.ENVIRONMENTAL GEOLOGY,58(5),937-942.
MLA Ye, Lin,et al."The influence of topography and land use on water quality of Xiangxi River in Three Gorges Reservoir region".ENVIRONMENTAL GEOLOGY 58.5(2009):937-942.
Files in This Item:
File Name/Size DocType Version Access License
The influence of top(352KB) 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
[Ye, Lin]'s Articles
[Cai, Qing-hua]'s Articles
[Liu, Rui-qiu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ye, Lin]'s Articles
[Cai, Qing-hua]'s Articles
[Liu, Rui-qiu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ye, Lin]'s Articles
[Cai, Qing-hua]'s Articles
[Liu, Rui-qiu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: The influence of topography and land use on water quality of Xiangxi River in Three Gorges Reservoir region.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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