Spatial distribution, sources and ecological risk assessment of heavy metals in Shenjia River watershed of the Three Gorges Reservoir Area
文献类型：期刊论文
| 作者 | Wang Yong-yan1,2 ; Wen An-bang1; Guo Jin3; Shi Zhong-lin1; Yan Dong-chun1
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 14期号:2页码:325-335 |
| ISSN号 | 1672-6316 |
| 关键词 | Spatial Distribution Ecological Risk Assessment Water-level Fluctuation Zone Heavy Metals Three Gorges Reservoir |
| DOI | 10.1007/s11629-016-3838-1 |
| 通讯作者 | WEN An-bang |
| 文献子类 | Article |
| 英文摘要 | Surface soil/sediment samples were collected from the Water-Level Fluctuation Zone (WLFZ), cultivated land and forest land at 50 different grid points from Shenjia watershed, the Three Gorges Reservoir area in August 2013. The spatial distribution, sources and ecological risk assessment for Arsenic (As), Cadmium (Cd), Chromium (Cr), Copper (Cu), Nickel (Ni), Lead (Pb) and Zinc (Zn) were analyzed in this study. The results showed all tested metals had similar distribution patterns except Ni and Cr, with areas of high concentrations distributed in the southwest (WLFZ and watershed outlet) of the study area. Ni and Cr, which were highly positively correlated and present in high concentrations, were primarily distributed in the south and middle zones of the study area. Lower concentration areas of all metals were uniformly distributed west of the high-elevation zones and forest land. Factor analysis (FA) and factor analysis-multiple linear regression (FA-MLR) showed that the major sources of Cd were fertilizer and traffic sources, which together accounted for 87% of Cd. As, Zn and Cu levels were primarily supplied by industrial and domestic sources, accounting for 76% of As, 75% of Cu and 67% of Zn. Surface soils/sediments of the study watershed contaminated by Cd represent a high ecological risk, whereas other metals represent low ecological risks. The potential ecological risk index (PERI) analysis indicated that it had a low (wide-range) ecological risk and a moderate (small-range) ecological risk primarily distributed in the outlet of the study watershed. Fertilizers and traffic are the primary sources of Cd pollution, which should be more closely controlled for the purposes of water quality and ecological conservation. |
| WOS关键词 | LEVEL-FLUCTUATION ZONE ; AGRICULTURAL SOILS ; YANGTZE-RIVER ; SOURCE APPORTIONMENT ; SURFACE SEDIMENTS ; INDUSTRIAL-AREA ; CHINA ; CONTAMINATION ; POLLUTION ; URBAN |
| 语种 | 英语 |
| WOS记录号 | WOS:000394156900008 |
| 资助机构 | National Natural Science Foundation of China(41430750) ; National Key Basic Research Program of China(2015CB452704 ; Chinese Academy of Sciences(KFJ-EW-STS-008 ; 2016YFC0402301) ; KFJSW-STS-175) |
| 源URL | [http://ir.imde.ac.cn/handle/131551/18421]  |
| 专题 | Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 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 |
| 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.Chinese Acad Sci Univ, Beijing 100049, Peoples R China 3.Sichuan Elect Power Design Inst, Chengdu 610072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Yong-yan,Wen An-bang,Guo Jin,et al. Spatial distribution, sources and ecological risk assessment of heavy metals in Shenjia River watershed of the Three Gorges Reservoir Area[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(2):325-335. |
| APA | Wang Yong-yan,Wen An-bang,Guo Jin,Shi Zhong-lin,&Yan Dong-chun.(2017).Spatial distribution, sources and ecological risk assessment of heavy metals in Shenjia River watershed of the Three Gorges Reservoir Area.JOURNAL OF MOUNTAIN SCIENCE,14(2),325-335. |
| MLA | Wang Yong-yan,et al."Spatial distribution, sources and ecological risk assessment of heavy metals in Shenjia River watershed of the Three Gorges Reservoir Area".JOURNAL OF MOUNTAIN SCIENCE 14.2(2017):325-335. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。