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广西环江铅锌矿尾砂坝坍塌对农田土壤的污染及其特征
翟丽梅; 陈同斌; 廖晓勇; 阎秀兰; 王莉霞; 谢华
2008
Source Publication环境科学学报
ISSN0253-2468
Volume028Issue:006Pages:1206
Abstract广西环江县因铅锌金属矿区尾砂坝坍塌导致大面积农田污染甚至绝收.为此,对矿区下游污染区和非污染区的农田土壤、尾砂和河流沉积物进行了系统调查和研究.调查结果表明,农田遭受As、Pb、Zn和Cd污染,土壤酸化严重,pH值最低至2.5,全硫含量高达2.29%.X-衍射鉴定结果表明,受污染土壤中存在大量硫铁矿,这是导致土壤酸化的主要物质.由于强酸性淋溶作用的影响,污染农田中La、Ce和Nd等稀土元素发生明显的向下淋溶现象,导致表层土壤La、Ce和Nd元素含量明显低于未污染农田.从土壤剖面分布来看,污染点的土壤中As、Pb和Zn仍主要集中分布在表层0~30cm范围,发生土壤酸化现象的土层深度仍局限于0~70cm范围.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/121515
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
翟丽梅,陈同斌,廖晓勇,等. 广西环江铅锌矿尾砂坝坍塌对农田土壤的污染及其特征[J]. 环境科学学报,2008,028(006):1206.
APA 翟丽梅,陈同斌,廖晓勇,阎秀兰,王莉霞,&谢华.(2008).广西环江铅锌矿尾砂坝坍塌对农田土壤的污染及其特征.环境科学学报,028(006),1206.
MLA 翟丽梅,et al."广西环江铅锌矿尾砂坝坍塌对农田土壤的污染及其特征".环境科学学报 028.006(2008):1206.
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