干旱区生态环境知识资源中心(Arid): 干旱区绿洲土壤Cd-Zn复合污染对胡萝卜的影响及富集迁移规律

Arid

	干旱区绿洲土壤Cd-Zn复合污染对胡萝卜的影响及富集迁移规律
其他题名	Effects of Cd-Zn combined pollution on the growth of carrot in oasis soils of arid areas and the migration and enrichment of Cd and Zn
	武文飞; 南忠仁; 王胜利; 周婷; 廖琴; 李程程
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2012
卷号	48 期号:2 页码:1-8,14
中文摘要	以干旱区绿洲土壤为供试材料,通过盆栽实验探讨了Cd-Zn复合污染条件下,土壤重金属的形态变化及其在胡萝卜中的分布、累积和迁移情况.结果表明:随着重金属Cd-Zn复合胁迫质量分数的增加,低质量分数的Cd-Zn胁迫促进了胡萝卜的生长,高质量分数时明显抑制了胡萝卜的生长;Zn的碳酸盐结合态促进了胡萝卜对Zn的累积;胡萝卜对Cd,Zn的富集系数和转运系数及富集量系数和转运量系数的关系均为Cd>Zn,胡萝卜对重金属的迁移能力为Cd>Zn;胡萝卜对Cd,Zn的积累量与土壤中Cd,Zn胁迫量之间呈现多元非线性关系,Cd,Zn的交互作用因质量分数而异.
英文摘要	A simulated test of compound contamination by Cd and Zn was carried out for oasis soils.In order to study the compound effects of Cd-Zn,the migration,accumulation and distribution of Cd and Zn in carrots were also studied.The results indicated that lower concentrations of Cd and Zn could promote carrot growth,but a higher concentrations could obviously inhibit carrot growth.CAB-bound Zn made the greatest contribution to Zn accumulation in carrot leaves and roots;the relation of absorption coefficients with transformation coefficients of carrots to Cd and Zn was equally Cd>Zn.What is more,absorption capacity coefficients and transformation capacity coefficients produced the same results.The bio-concentration factors of Cd in carrot leaves and roots were all greater than those of Zn,which showed that the uptake capability of Cd in the carrots was greater than Zn;Cd and Zn accumulation in carrots and Cd,Zn stress in the soil showed a multiple non-linear relationship; Cd and Zn concentrations varied due to the interaction.
中文关键词	复合污染 ; 富集 ; 迁移
英文关键词	Cd Zn Cd Zn combined pollution enrichment migration
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:4533229
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/2XILL650/228277
作者单位	兰州大学资源环境学院, 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Cd-Zn复合污染对胡萝卜的影响及富集迁移规律[J]. 兰州大学,2012,48(2):1-8,14.
APA	武文飞,南忠仁,王胜利,周婷,廖琴,&李程程.(2012).干旱区绿洲土壤Cd-Zn复合污染对胡萝卜的影响及富集迁移规律.兰州大学学报. 自然科学版,48(2),1-8,14.
MLA	武文飞,et al."干旱区绿洲土壤Cd-Zn复合污染对胡萝卜的影响及富集迁移规律".兰州大学学报. 自然科学版 48.2(2012):1-8,14.