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Position: Home > Articles > Fe-Mn Nodules in Karst Soil of Litang District Journal of Henan Agricultural Sciences 2008,20 (9) 67-70

黎塘岩溶区土壤铁锰结核初步研究

作  者:
苏春田;唐健生;单海平;陈宏峰;夏日元;邹胜章;陈忠将
单  位:
中国地质科学院岩溶地质研究所
关键词:
岩溶;土壤;铁锰结核;重金属;富集效应
摘  要:
对黎塘岩溶区土壤铁锰结核分布特征、物理性状和地球化学特征的初步研究表明:铁锰结核含量在横向和纵向上具有一定差异,A层铁锰结核含量一般高于B层。铁锰结核的化学组成中仍以SiO2,Al2O3和Fe2O3为主,但Fe2O3的含量明显增加,成为铁锰结核中含量最多的氧化物,MnO的含量也有一定程度增加;铁锰结核对重金属具有明显的富集效用,其富集顺序为Cr6+>Pb>Co>Zn>Ni>Ba>Li。
译  名:
Fe-Mn Nodules in Karst Soil of Litang District
作  者:
SU Chun-tian1,TANG Jian-sheng1,SHAN Hai-ping1,CHEN Hong-feng1,XIA Ri-yuan1,ZOU Sheng-zhang1,CHEN Zhong-jiang1,2(1.Institution of Karst Geology,CAGS,Guilin 541004,China;2.College of Life Science,Guangxi Normal University,Guilin 541004,China)
关键词:
Karst;Soil;Fe-Mn nodule;Heavy metal;Enrichment effect
摘  要:
The traits of distribution and physics,the element geochemistry characteristics of Fe-Mn nodules were studied in karst area in Litang district.Contents of Fe-Mn nodules were different in horizontal and vertical and its contents were higher in A layer than in B layer.Compared with correspongding soils,SiO2,Al2O3 and Fe2O3 were still the main chemical elements in Fe-Mn nodules.However,the Fe2O3 content increased significantly and was the most in the oxides,but the MnO content increased to some extent.Fe-Mn nodules enriched heavy metal elements,and the enrichment order of the heavy metals was Cr6+>Pb>Co>Zn>Ni>Ba>Li.

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