干旱区生态环境知识资源中心(Arid): 露天煤矿周围的四种植被重金属富集和转移特征分析

Arid

	露天煤矿周围的四种植被重金属富集和转移特征分析
其他题名	Heavy metal accumulation and its transfer characteristics of four plant species under the effect of opened coal mine
	阿不都艾尼·阿不里 1; 塔西甫拉提·特依拜 2; 玉米提·哈力克 2; 师庆东 3; 尼格拉·塔西甫拉提 2; 塔依尔江·艾山 3; 阿尔祖娜·阿布力米提 2
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2017
卷号	40 期号:6 页码:1207-1217
中文摘要	采用野外调查和室内化学分析相结合的方法,对新疆准东露天煤矿周围常见的假木贼(Anabasis aphylla)、梭梭(Haloxylon ammodendron)、琵琶柴(Reaumuria songoonica)、蛇麻黄(Ephedra distachya)等四种植物对重金属的吸收、富集能力和来源进行了分析。结果表明:植物体内重金属含量大小来看,Zn、Cu、Cr含量较大,Pb、As和Hg含量较少。假木贼根部的Cr含量以及四种植被体内Hg含量均超过了植被生长的正常范围。从植物与相应土壤中的重金属相关性来看,假木贼,琵琶柴体内Zn、Cu元素,琵琶柴体内Zn、Hg、As元素,梭梭体内的Zn、Cu、As元素与相应土壤中的重金属含量相关性较好,植物体内的重金属主要来自于土壤,交通运输,大气降尘等多种来源。植物对重金属的富集和转移能力表明,假木贼(2.89),琵琶柴(1.14),梭梭(1.72)对Hg有一定的富集能力,其富集能力大小顺序为假木贼>梭梭>琵琶柴,它们属于潜在的Hg富集植物。蛇麻黄对Cu具有较强富集能力。假木贼,琵琶柴和梭梭对Zn、Cr和Pb具有较好的转移能力。这三种植物对重金属均有一定的耐性,可作为矿区土壤植物修复的优选物种。
英文摘要	Coal mine meets people’s demand for energy,which not only promotes the economic growth,but also ensures the regional security and sustainable development. Meanwhile,the excessive exploitation of mining brings negative effect to the local eco-environment. As one of the most important indicators of eco-environmental pollution,the growth situation of plant is significant to evaluate the regional eco-environment. In this paper,instructed by atomic absorption spectrophotometer,descriptive statistical methods,bioaccumulation factor(BAF) and translocation factor(TF)methods,based on field sampling and experimental analysis,the source of heavy metal and the absorption and enrichment of Anabasis aphylla,Reaumuria songonica,Epherdra distachya and Haloxylon ammodendorn to them in the area of Zhundong surface mine,Xinjiang,China has been researched. The result shows that: heavy metal contents of Cr,Hg and Pb in the soil are 1.94,3.06 and 3.0 times higher than the Regional Soil Environmental Background value,the contents of Cr and Pb are 1.57 and 3.01 times higher than the second grade criteria of the National Standard of Soil Environment Quality(GB15618-1995);Regarding to the amounts of Heavy metals in plant,the amount of Zn,Cu and Cr is higher than that of Pb,As and Hg. The content of Cr(19.78 mg· kg- 1)in the root of A. aphylla and the content of Hg in these four kinds of plant species exceed the normal range that the plant demands,but other heavy metal contents are in normal range. Regarding to the TF and BAF of heavy metal,for Zn and Cu,there is a high correlation between the A. aphylla and the soil,for Zn、Hg、and As,there is a high correlation between R. songonica and the soil,for Zn、Cu and As, there is a high correlation between H. ammodendron and the soil,but for other elements,there is a weak correlation between the plant and the soil. Most of the heavy metals in plants come from soil,atmospheric dust fall and the traffic pollution. Regarding to the TF and BAF of heavy metals,the BAF of Hg in A.aphylla(2.89),R. songonica(1.14),H. ammodendron(1.72)are greater than 1,this proofs that these kinds of plant have a large Hg bioaccumulation capacity,and the order is A. aphylla >H. ammodendron >R. songonica,which indicates that these plants have the bioaccumulation potentials of Hg. BAF of Cu in E. distachya is 1.26,also greater than 1. If the TF of some elements is larger than 1,it is illustrated that these plants have translocation capacity of these elements. The TF of Zn,Cr,and Pb in A. aphylla,R. songonica,H. ammodendron is greater than 1. Above three kinds of plant has a good tolerance to the heavy metal;they can be selected as the pioneer plant for the ecological rehabilitation in mining area. Analysis of the contents,accumulation and transformation characteristics of heavy metals of the arid region plants are very important for selecting pioneer plants in this region. This study have a practical significance of management and improvement of the eco-environments in heavy metal polluted region.
中文关键词	土壤 ; 植被 ; 重金属含量 ; 富集能力 ; 转移能力
英文关键词	soil plant heavy metals bioaccumulation factor(BAF) translocation factor(TF)
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:6147204
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235963
作者单位	1.新疆大学生态学博士后流动站, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国; 2.新疆大学, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国; 3.新疆大学干旱生态与环境研究所, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	阿不都艾尼·阿不里,塔西甫拉提·特依拜,玉米提·哈力克,等. 露天煤矿周围的四种植被重金属富集和转移特征分析[J]. 新疆大学,2017,40(6):1207-1217.
APA	阿不都艾尼·阿不里.,塔西甫拉提·特依拜.,玉米提·哈力克.,师庆东.,尼格拉·塔西甫拉提.,...&阿尔祖娜·阿布力米提.(2017).露天煤矿周围的四种植被重金属富集和转移特征分析.干旱区地理,40(6),1207-1217.
MLA	阿不都艾尼·阿不里,et al."露天煤矿周围的四种植被重金属富集和转移特征分析".干旱区地理 40.6(2017):1207-1217.