大兴安岭泥炭微量元素分布特征及其环境意义

采用原子吸收光谱和等离子体发射光谱等现代仪器分析方法对大兴安泥炭生趣剖面中Ｃｕ，Ｐｂ，Ｚｎ，Ｃｄ，Ｈｇ，Ｃｒ，Ｎｉ，Ｍｎ，Ｓｒ，Ｂａ等１２种微量元素进行了测定，结果表明，大兴安岭地区古莲，图强泥炭地和同一泥炭地沼泽泥炭发育的不同阶段，微量元素含量分布规律不十分明显，与俄国斯典型同类泥炭相比，Ｍｎ含量俄罗斯泥炭明显高于大兴安岭泥炭，Ｚｎ，Ｃｏ，Ｂ含量大兴安岭泥炭明显高于俄罗期泥炭。

TRACE ELEMENT DISPERSION CHARACTERISTICS OF PEAT IN THE DA HINGAN MOUNTAINS AND ENVIRONMENTAL SIGNIFICANCE

Samples of peat were collected from the Da Hingan Mountains. The contents of trace elements (including Cu, Pb, Zn, Cd, Hg, Cr, Hi, Co, Mn, Sr, Ba, B) in the vertical sections were measured with modern analytical methods (AAS and ICP). The results show that the dispersion regularity of trace clement concentrations was not very clear in Gulian peat and Tuqiang peat and in different stages of the same type of peat. Compared with the same type of Russian peat, the contents of Zn, Co and B in the Da Hingan Mountains was higher, but the content of Mn was obviously lower. In the high peat, the contents of trace elements increased from bottom layer to surface layer, especially for some heavy metals having close relationship with human activities. Studies on trace elemlent geochemistry spectrums of peat in different areas help to reconstruct the history of air pollution and have great environmertal significance.