文档介绍：2 0 11年1月
第27卷第l期
沈阳建筑大学学报(自然科学版)
Joumal of shenyang Jianzhu universicy(Namral Science)
Jan. 201 l
,
文章编号:167l一202l(2011)01—0130—05
大孤山矿区土壤重金属形态分布特征及影响因素
杨
维1,沈爱莲1,李
璇2,封金利1
(,辽宁沈阳l 10168;,辽宁沈阳110031)
摘要:目的分析了大孤山铁矿尾矿库及周边景区重金属形态分布及理化指标对重金属形态
的影响, 5步连续提取法对
土壤中Cu、zn、Pb、Cd、Ni等5种重金属元素的形态进行了分析,并用相关分析法分析了重金
,有机结合态次之,Zn、Pb、Ni
3
种金属的残渣态占绝对优势,,pH对各
重金属可交换态影响较大,oM是影响有机结合态和残渣态的主要因素,也是影响Pb可交换
态的主要因素,,占总
%,其他矿区重金属形态总体为残渣态为主,相关分析结果表明,不同金属的形态
分布受到土壤理化性质的影响比较明显.
关键词:土壤重金属;形态分布;相关分析;影响因素
中图分类号:x53
文献标志码:A
Distribution Characteristic of HeaVy
MetaI Chemical Form and
Its Innuencing Factors
around the Dagushan Mine District
MⅣG
(
Wail,S爿EN AfZin,11,U X距nn2,FE?VG且n髓1
of MunicipaJ卸d Environmental Engine耐ng,shenyang Ji明zhu univers时,yaIlg,china,“0168;—
mental
Scienc三Research Instimte of Liaoning Pmvince,Sheny锄g,Chi∞,110031)
Abst期ct:The paper smdies me distribution of heaVy metal
foms
aIld innuencing factofs in me tailing yard
of DagushaIl iron IIline and surrounding scientific con仃ol strategy for heaVy mental pollution reme・
diation
in血ning
is t11e met|lod of Tessier 5 continuous extraction and correlation aIlaly—
sis,nle paper analyzes tlle relations between aIl hnds ofheavy metal fb衄s,such as Cu,Zn,Pb,Cd,Ni in t11e
soil cheⅡlical results show t11at in tlle soil,most Cu is in residual fo衄s,anic
combination
is second;most Zn,Pb and Ni
in residual
foms:a11d
mutative fonn in tlle soil
is tlle greatest
wi“n
five heavy analysis results also show mat pH is me rnost importaIlt factor
af!fbcting
all l【inds ofheavy mutatiVe fbnll in tlle soil;OM is tlle
pri仳吖factor affec咖g
bination state aIld residual
fo胁,and
is also tlle primary innuence factor to mutative
fo衄;
and