干旱区生态环境知识资源中心(Arid): 干旱区绿洲土壤镉、铅、锌、镍的形态转化

Arid

	干旱区绿洲土壤镉、铅、锌、镍的形态转化
其他题名	Species transformation of Cd,Pb,Zn and Ni in arid oasis soil
	武文飞; 南忠仁; 王胜利; 周婷; 廖琴
来源期刊	环境化学
ISSN	0254-6108
出版年	2013
卷号	32 期号:3 页码:475-480
中文摘要	以我国西北干旱区绿洲土壤为供试土壤,采用Tessier形态连续浸提方法,研究了土壤中Cd、Pb、Zn、Ni单一胁迫下的形态分布及再分配趋势.试验结果表明,原状土壤中Cd的主要赋存形态为铁锰氧化态,Pb、Zn、Ni则以残渣态为主;外源可溶性重金属进入土壤后,Cd、Pb、Zn、Ni的主要赋存形态和形态分布特征均发生显著改变,各形态的响应程度因元素而异;重金属的活性均有不同程度的提高,Cd的活性最大;重金属的形态分布是不稳定的,尤以Zn、Pb为甚,尽管会随着时间和作物的影响继续向着稳定的方向转化,但过程是缓慢的.因此,重金属污染对土壤环境的影响是持久的.
英文摘要	Tessier sequential extraction procedure was performed to investigate the species distribution character and redistribution of single Cd,Pb,Zn and Ni added in arid oasis soil. The results showed that,Cd mainly existed in ferric-manganese oxide form,and Pb,Zn and Ni mainly existed in residual form in undisturbed soil; The main existed species and species distribution of Cd,Pb,Zn and Ni was changed significantly when Cd,Pb, Zn or Ni was added,and response extent of various species was determined by the characters of heavy metals; The mobility of Cd,Pb,Zn and Ni was increased in different degrees,and mobility of Cd was the greatest; Species distribution of Cd,Pb,Zn and Ni was unstable,especially Zn and Pb; With time and planting elapsing,species distribution of Cd,Pb,Zn and Ni would become stable slowly. Therefore,the heavy metal pollution on soil will last for a long period.
中文关键词	绿洲土壤 ; 重金属 ; 形态转化 ; 再分配
英文关键词	arid oasis soil heavy metals form transformation redistribution
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:4797926
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229781
作者单位	兰州大学资源环境学院, 西部环境教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	武文飞,南忠仁,王胜利,等. 干旱区绿洲土壤镉、铅、锌、镍的形态转化[J]. 兰州大学,2013,32(3):475-480.
APA	武文飞,南忠仁,王胜利,周婷,&廖琴.(2013).干旱区绿洲土壤镉、铅、锌、镍的形态转化.环境化学,32(3),475-480.
MLA	武文飞,et al."干旱区绿洲土壤镉、铅、锌、镍的形态转化".环境化学 32.3(2013):475-480.