吉林省西部黑钙土重金属分布及其生态风险评价
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- 英文论文题名：The distribution of heavy metals and their ecological risk assessment in Chernozem from the western Jilin Province
- 论文作者：杜广仁 ; 柴社立
- 英文论文作者：DU Guang-ren ; CHAI She-li ; Research Institute No.240 CNNC ; College of Geo-exploration Science and Technology
- 年：2015
- 作者机构：核工业二四〇研究所;吉林大学地球探测科学与技术学院;
- 论文关键词：黑钙土 ; 重金属含量 ; 化学形态 ; 潜在生态风险评价
- 英文论文关键词：Chernozem ; heavy metals ; contents ; chemical speciation ; potential ecological risk assessment
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第6册（核化学与放射化学分卷、核化工分卷）
- 语种：中文
- 分类号：X53;X826
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：7
- 文件大小：300k
- 原文格式：O
- 会议级别：全国
摘要
在吉林省西部共采集黑钙土表层土样品37件,测定分析了样品8种重金属的含量及形态分布,探讨了重金属的来源,对黑钙土的环境质量及重金属的潜在生态风险分布进行了评价。黑钙土中重金属含量从大到小依次为:Zn>Cr>Pb>Cu>Ni>As>Cd>Hg;As、Hg、Cu、Cr、Pb、Ni和Zn间显著相关性,表明这些重金属可能具有相同的来源;Cd除与As具有一定相关性外,与其他重金属相关性不明显,表明Cd的来源可能不同于其他重金属;黑钙土中除Cd以外,其余重金属的形态以残渣态为主。黑钙土总体环境质量是安全的,未受到重金属污染,但Cd的潜在生态风险相对较高。
Thirty seven topsoil samples in Chernozem from the western Jilin Province were collected for investigating the contents and chemical speciation of eight heavy metals,then the possible source in the soil was discussed,and the environmental quality and potential ecological risk of the metals in the soil were evaluated.The results show that the contents of heavy metals decreased as follows:Zn>Cr>Pb> Cu> Ni> As> Cd> Hg;The correlations among As、 Hg、 Cu、 Cr、 Pb、 Ni and Zn are significant,suggesting that the metals may derived from the similar source,while Cd is only correlated with As,implying that Cd had the different source with others.The residual fraction of As、 Hg、Cu、Cr、Pb、Ni and Zn took the predominance in their seven chemical fractionations except for Cd.In general,Chernozem is not polluted by the heavy metals,so its environmental quality is safety,but the potential ecological risk of Cd is higher than those of other metals.
Thirty seven topsoil samples in Chernozem from the western Jilin Province were collected for investigating the contents and chemical speciation of eight heavy metals,then the possible source in the soil was discussed,and the environmental quality and potential ecological risk of the metals in the soil were evaluated.The results show that the contents of heavy metals decreased as follows:Zn>Cr>Pb> Cu> Ni> As> Cd> Hg;The correlations among As、 Hg、 Cu、 Cr、 Pb、 Ni and Zn are significant,suggesting that the metals may derived from the similar source,while Cd is only correlated with As,implying that Cd had the different source with others.The residual fraction of As、 Hg、Cu、Cr、Pb、Ni and Zn took the predominance in their seven chemical fractionations except for Cd.In general,Chernozem is not polluted by the heavy metals,so its environmental quality is safety,but the potential ecological risk of Cd is higher than those of other metals.
引文
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[3]宋日,刘利,吴春日,等.阿特拉津对我国东北半干旱区黑钙土微生物活性影响研究[J].农业环境科学学报,2009,28(6):1153-1158.
[4]王艳玲,王鸿斌,赵兰坡.吉林省西部盐化黑钙土区芝麻水肥耦合效应研究[J].土壤学报,2004,35(4):431-434.
[5]周光明,周康民,汤志云,等.土壤和沉积物中重金属形态分析[J].土壤,2009,42(2):201-205.
[6]刘恩玲,王亮.土壤中重金属污染元素的形态分布及其生物有效性[J].安徽农业科学.2006,34(3):547-548.
[7]Hakanson,L.An ecological risk index for aquatic pollution control:A sedimentological approach[J].Water Research,1980,14(6):975-1001.
[8]姜岩,杨国荣,刘炜.吉林土壤[M].北京:中国农业出版社,1998.
[9]杨志军,张志国,曹金勇,等.土壤与农作物重金属含量相关性的初步研究[J],淮阴工学院学报,2003,12(3):85-88.