摘要
通过露天盆栽试验,研究了粉煤灰和石灰对重金属污染土壤pH值及结构的影响,比较三种土壤条件下油唛菜对重金属的吸收情况,表明油唛菜在不同土壤条件下对Cd、Pb、Zn的吸收能力有差异.在土壤中加入粉煤灰,油唛菜含镉、铅、锌的量分别约为未加改良剂土壤的73%、72%和78%;添加石灰,油唛菜中重金属镉、铅的含量约为未改良土壤的81%、83%,而锌的含量先微弱增加而后降低,说明粉煤灰对油唛菜吸收重金属的影响要大于石灰,粉煤灰是首选的改良剂.
Adding calcareousness and fly-ash into soil to change the pH and texture by pot experiment in the open air.The result showed the availability of heavy-metals was different in different soils.For fly-ash,the concentration of Cd,Pb,Zn was 73%,72%,78% of soil which was not dealed with soil amendment. For calcareousness, the concentration of Cd,Pb was 81%,83%of soil which was not dealed with soil amendment,but Zn was different from them.The effect of fly-ash was stronger than the calcareousness.It was a better soil amendment.
出处
《河南师范大学学报（自然科学版）》
CAS
CSCD
2004年第3期133-136,共4页
Journal of Henan Normal University(Natural Science Edition)
关键词
粉煤灰
石灰
重金属
fly-ash
calcareousness
heavy-metals
