IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2018  > Vol15 No.2
Tempo-spatial variations of sediment-associated nutrients and contaminants in the Ruxi tributary of the Three Gorges Reservoir, China
Shi Zhong-lin1; Wang Yong-yan1,2; Wen An-bang1; Yan Dong-chun1; Chen Jia-cun1,2
2018
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume15Issue:2Pages:319-326
SubtypeArticle
AbstractRuxi River is a tributary of the Three Gorges Reservoir. This study examined the temporal and spatial dynamics in particle size characteristics and the associated nutrients and contaminants of the fluvial suspended and deposited sediments along the Ruxi River. Temporal variations in the particle size distribution of the suspended sediment are controlled mainly by differences in sediment source during different seasons. Total organic carbon (TOC), total nitrogen (TN) and total phosphorous (TP) in the < 62 mu m fraction of the suspended sediment exhibit considerably higher concentrations in spring, indicating high probability of algal blooms in the backwater areas. Downstream trends in the nutrient contents of < 62 mu m deposited sediments imply the greatest potential for eutrophication in the backwater ends, where highest nutrient concentrations were detected. Assessment of metal contamination shows that the sediments deposited in the water-level fluctuation zone were moderately to strongly contaminated by Cadmium (Cd), with a considerably high potential ecological risk. The findings reported have emphasized the impacts of reservoir impoundment on aquatic and/or terrestrial environment in this region. More information on physical, chemical and biological processes of sediment and sediment-associated materials are needed for developing environmentally and ecologically sound policies of water and sediment management.
KeywordSediments Nutrients Trace metals Water-level fluctuation zone Ruxi tributary Three Gorges Reservoir
DOI10.1007/s11629-017-4486-9
Indexed BySCI
WOS KeywordMETAL CONTAMINATION ; RISK-ASSESSMENT ; WATER-QUALITY ; HEAVY-METALS ; RIVER ; POLLUTION ; SYSTEMS ; URBAN ; ENRICHMENT ; DYNAMICS
Language英语
Quartile4区
Funding ProjectNational Natural Science Foundation of China[41430750] ; National Natural Science Foundation of China[41301293] ; National Key R&D Program of China[2017YFD0800505] ; National Key R&D Program of China[2016YFC0402301]
TOP
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000425160200008
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China
PublisherSCIENCE PRESS
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20848
CollectionJournal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.2
山地表生过程与生态调控重点实验室
科技与合作处
Corresponding AuthorWang Yong-yan
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Shi Zhong-lin,Wang Yong-yan,Wen An-bang,et al. Tempo-spatial variations of sediment-associated nutrients and contaminants in the Ruxi tributary of the Three Gorges Reservoir, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(2):319-326.
APA Shi Zhong-lin,Wang Yong-yan,Wen An-bang,Yan Dong-chun,&Chen Jia-cun.(2018).Tempo-spatial variations of sediment-associated nutrients and contaminants in the Ruxi tributary of the Three Gorges Reservoir, China.JOURNAL OF MOUNTAIN SCIENCE,15(2),319-326.
MLA Shi Zhong-lin,et al."Tempo-spatial variations of sediment-associated nutrients and contaminants in the Ruxi tributary of the Three Gorges Reservoir, China".JOURNAL OF MOUNTAIN SCIENCE 15.2(2018):319-326.
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