干旱区生态环境知识资源中心(Arid): 包头市南海湿地土壤重金属污染评价及来源解析

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	包头市南海湿地土壤重金属污染评价及来源解析
其他题名	Pollution Assessment and Source Apportionment of Heavy Metals in NanHai Wetland Soil of Baotou City
	李卫平 1; 王非 1; 杨文焕 1; 崔亚楠 1; 樊爱萍 2; 苗春林 3
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2017
卷号	26 期号:11 页码:1977-1984
中文摘要	包头市南海湿地位于中国西北地区的高纬度寒旱区,具有独特的河流湿地生态系统。以南海湿地土壤为研究对象,对湿地28个点位表层土壤(0~20 cm)中As、Cd、Cr、Cu、Ni、Mn、Pb、Zn 8种重金属进行检测分析,采用环境质量指数与Hakanson环境生态潜在风险指数相结合的方法,探讨土壤中8种重金属的累积污染现状及潜在生态风险,利用相关性分析、主成分分析和聚类分析区分了南海湿地重金属的来源,以期为南海湿地土壤环境保护提供理论依据。结果表明,As、Cd、Cr、Cu、Ni、Mn、Pb和Zn重金属平均值分别为75.18、1.27、56.98、111.18、87.67、622.71、54.10和209.33 mg·kg~(-1)。以包头市南海公园树木林土壤重金属含量为评价基准,南海湿地土壤重金属普遍超标,研究区域所有样方中As、Cd、Cu、Mn和Pb均超标,Cr有64.29%的样点超标,Ni有96.43%的样点超标,Zn有89.29%的样点超标。单因子污染指数表明,Cd处于中度污染;As、Cu、Pb和Zn处于轻度污染;Cr、Ni和Mn处于轻微污染。农田区和景观大道两侧处于重污染水平,鱼塘区和湿地植物区处于中污染水平。潜在生态风险指数表明,Cd处于强风险等级;As、Cr、Cu、Ni、Mn、Pb、Zn处于低风险等级。;研究区整体上都属于中等风险等级。来源解析表明:As、Cd、Cu、Ni、Mn的来源受到周边工业活动和农业活动的影响;Pb和Zn的来源与道路交通有关,Pb还受到工业活动的影响;Cr来源与土壤母质和农业活动有关。
英文摘要	The Nanhai wetland soil in Baotou City is a unique wetland ecosystem of high latitude cold and arid regions in Northwest of China. The soil as the research object, As, Cd, Cr, Cu, Ni, Mn, Pb and Zn heavy metals in topsoil samples(0~20 cm) of 28 sites of the Nanhai wetland were detected and analyzed, using the method of environmental quality index and Hakanson potential ecological risk index to discuss the accumulation of pollution with the 8 kinds of heavy metals in soil and potential ecological risk, using correlation analysis, principal components analysis and clustering analysis to distinguish the source of the wetland heavy metals in order to provide theoretical basis for the Nanhai wetland soil environmental protection. The results showed that the average content of As, Cd, Cr, Cu, Ni, Mn, Pb and Zn was 75.18, 1.27, 56.98, 111.18, 87.67, 622.71, 54.10 and 209.33 mg·kg~(-1), respectively. Based on the content of heavy metals in the Trees of Nanhai Park in Baotou, the heavy metals were generally exceeded. As, Cd, Cu, Mn, and Pb were all over standard in all sampling areas of the study area, 64.29% of the samples exceeded the standard of Cr, 96.43% of the samples exceeded the standard of Ni, and 89.29% of the samples exceeded the standard of Zn. The single factor pollution index showed that Cd was moderately polluted; As, Cu, Pb and Zn were in severe pollution; Cr, Ni and Mn were slightly polluted.Heavy pollution levels were found on both sides of the farmland and landscape Avenue, and the fish pond area and wetland plant area were in the middle pollution level. The potential ecological risk index showed that Cd was at a very high risk level; As, Cr, Cu, Ni, Mn, Pb and Zn was at a low risk level; the study area was in a middle risk level as a whole. Source analysis showed that As, Cd, Cu, Ni and Mn was affected by the surrounding industrial and agricultural activity; Pb and Zn was related with the road traffic, Pb might be affected by the industrial activity; Cr was affected by soil parent materials and agricultural activities.
中文关键词	南海湿地 ; 土壤 ; 重金属 ; 污染 ; 生态风险 ; 来源解析
英文关键词	Nan Hai wetland soil heavy metal ecological risk source analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6125976
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236416
作者单位	1.内蒙古科技大学能源与环境学院, 包头, 内蒙古 014010, 中国; 2.包头市生态湿地保护管理中心, 包头, 内蒙古 014010, 中国; 3.包头南海子湿地保护区管理处, 包头, 内蒙古 014040, 中国
推荐引用方式 GB/T 7714	李卫平,王非,杨文焕,等. 包头市南海湿地土壤重金属污染评价及来源解析[J],2017,26(11):1977-1984.
APA	李卫平,王非,杨文焕,崔亚楠,樊爱萍,&苗春林.(2017).包头市南海湿地土壤重金属污染评价及来源解析.生态环境学报,26(11),1977-1984.
MLA	李卫平,et al."包头市南海湿地土壤重金属污染评价及来源解析".生态环境学报 26.11(2017):1977-1984.