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中国农学通报 ›› 2011, Vol. 27 ›› Issue (1): 95-99.

所属专题: 土壤重金属污染

• 农学 农业基础科学 • 上一篇    下一篇

岩溶区铁锰结核胁迫下土壤重金属元素形态分析

苏春田 唐健生 陈宏峰 潘晓东 邹胜章 黄奇波   

  • 收稿日期:2010-06-03 修回日期:2010-07-19 出版日期:2011-01-07 发布日期:2011-01-07
  • 基金资助:

    广西科学研究与技术开发计划应用基础研究专项中国地质科学院岩溶地质研究所所控项目

Speciation of Heavy Metals in Fe-Mn Nodules Soil in Karst Area

  • Received:2010-06-03 Revised:2010-07-19 Online:2011-01-07 Published:2011-01-07

摘要:

内容摘要:采用连续提取法对岩溶区铁锰结核胁迫下的土壤重金属元素的形态进行了分析,并用原子吸收分光光度法对重金属元素的含量进行了测定。结果表明,土壤A、B层Cd、Cr、Cu、Pb、Zn以残渣态所占比例最高,Mn以铁锰氧化态所占比例最高;土壤A、B层生物可利用态所占比例以Cd最高,其它元素所占比例甚低,Cd成为本区的主要污染因素,Mn元素的潜在可利用态所占比例最高,也应加以注意其影响。

关键词: 白菜类作物, 白菜类作物, 遗传多样性, 结构分析

Abstract:

Abstract: The paper analyzed the speciation of heavy metals in Fe-Mn nodules soil in karst area by using Tessier A sequential extraction method,and determined the heavy metal contents with AAS.The results showed that, in A、B layer soil,residual fraction was the highest proportion in Cd、Cr、Cu、Pb、Zn,Fe-Mn oxides fraction was the highest proportion in Mn;bioavilable of Cd was the highest proportion in all heavy metal contents,while others was very low,so Cd was the mainly cause of pollution,potentially available of Mn was the highest proportion,so should also take note of its impact.