Tempo-spatial variations of sediment-associated nutrients and contaminants in the Ruxi tributary of the Three Gorges Reservoir, China
文献类型：期刊论文
| 作者 | Shi Zhong-lin1 ; Wang Yong-yan1,2; Wen An-bang1; Yan Dong-chun1; Chen Jia-cun1,2
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 15期号:2页码:319-326 |
| 关键词 | Sediments Nutrients Trace metals Water-level fluctuation zone Ruxi tributary Three Gorges Reservoir |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4486-9 |
| 英文摘要 | Ruxi 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000425160200008 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/20848]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2018_Vol15 No.2 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 科技与合作处 |
| 通讯作者 | Wang Yong-yan |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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