调水调沙工程黄河口近岸沉积物重金属和砷含量的空间分布及其生态风险评估

doi:10.5846/stxb201708111445

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	调水调沙工程黄河口近岸沉积物重金属和砷含量的空间分布及其生态风险评估
	田莉萍 ; 孙志高 ; 王传远 ; 孙万龙 ; 黎静 ; 陈冰冰
刊名	生态学报
	2018-04-19
卷号	38 期号:15 页码:5529-5540
关键词	重金属砷污染来源生态风险黄河口
ISSN号	1000-0933
DOI	10.5846/stxb201708111445
其他题名	Spatial distribution of heavy metals and As concentrations and assessment of their ecological risk in inshore sediments, affected by the Flow-sediment Regulation Scheme in the Yellow River estuary
产权排序	(1)福建师范大学地理研究所湿润亚热带生态地理过程教育部重点实验室 ; (2)中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室 ; (3)清华大学环境学院
英文摘要	To clarify the concentration distribution characteristics of heavy metal and arsenic (As) and their ecological risks in the sediments of the Yellow River estuary and the long-term effects of the Flow-sediment Regulation Scheme (FSRS), the concentrations of six heavy metals (Zn, Cr, Ni,Pb,Cu,Cd) and As in the surface sediments of 27 stations sampled in 2012 were determined by ICP-MS and their ecological risks were evaluated by determining the potential ecological risk index (RI).The results showed that the average levels of heavy metal and As in inshore sediments were in the order of As > Zn > Cr > Ni > Pb > Cu > Cd. The spatial distributions of Cr, Ni, Cu, and Pb concentrations were consistent, and higher values were generally detected in inshore and near the Yellow River estuary, whereas lower values were observed far from the estuary and coastline. Ni, Cu, Pb, and Zn concentrations showed significantly positive correlations with clay (P< 0.05),whereas no significant correlations were observed between clay and Cd (or Cr and As) (P > 0.05). The average potential ecological risk indices of six heavy metals and As in inshore sediments generally followed the order of Cd > As > Ni > Pb > Cu > Cr > Zn. According to the RI values in the study area, 18.52% of stations were slightly ecologically hazardous, 70.07% of stations were moderately ecologically hazardous, and 7.41% of stations were strongly ecologically hazardous, which was mainly caused by Cd and As. Because of the use of agricultural fertilizers, inshore oil extraction, fossil fuel combustion,and estuarine pollutant input,the sources of heavy metals and As in inshore sediments are complex and diverse. This study showed that only the concentrations of Cd and As showed an increasing trend following long-term implementation of the FSRS,indicating that their ecotoxicological risk in inshore sediments of the Yellow River estuary should be evaluated in the future.
语种	中文
CSCD记录号	CSCD:6291517
资助机构	国家自然科学基金面上项目#41371104 ; 国家自然科学基金面上项目#41171424 ; 福建省“闽江学者奖励计划”项目#
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24708]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_滨海湿地实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院烟台海岸带研究所海岸带环境过程与生态修复重点实验室; 2.福建师范大学地理研究所湿润亚热带生态地理过程教育部重点实验室; 3.清华大学环境学院
推荐引用方式 GB/T 7714	田莉萍,孙志高,王传远,等. 调水调沙工程黄河口近岸沉积物重金属和砷含量的空间分布及其生态风险评估[J]. 生态学报,2018,38(15):5529-5540.
APA	田莉萍,孙志高,王传远,孙万龙,黎静,&陈冰冰.(2018).调水调沙工程黄河口近岸沉积物重金属和砷含量的空间分布及其生态风险评估.生态学报,38(15),5529-5540.
MLA	田莉萍,et al."调水调沙工程黄河口近岸沉积物重金属和砷含量的空间分布及其生态风险评估".生态学报 38.15(2018):5529-5540.