| 沈阳市新城子铬渣堆存区土壤铬污染分布及形态研究 |
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| 引用本文： | 惠秀娟,孟雪莲,徐成斌,马溪平,付保荣.沈阳市新城子铬渣堆存区土壤铬污染分布及形态研究[J].气象与环境学报,2009,25(6):64-67. |
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| 作者姓名： | 惠秀娟 孟雪莲 徐成斌 马溪平 付保荣 |
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| 作者单位： | 1. 辽宁大学资源与环境学院， 辽宁 沈阳 110036;2. 辽宁大学药学院，辽宁 沈阳 110036 |
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| 基金项目： | 2005年辽宁省教育厅科学研究一般项目，2008年辽宁省教育厅科学研究一般项目，辽宁省科技攻关基金资助项目，辽宁省科技厅项目 |
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| 摘 要： | 采用 Tessier A连续提取法研究分析了沈阳市新城子铬渣堆存区土壤中重金属铬的污染分布和迁移转化规律。结果表明：土壤中重金属铬的5 种形态分布, 主要以残渣态和碳酸盐结合态为主，分别占总量的49.74%和21.40%，而有机结合态含量最低，占总铬含量的6.25%。不同的功能区域铬的形态分布有所不同。总体的分布特征是残渣态大于碳酸盐结合态大于交换态大于铁锰氧化态大于有机态。
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| 关 键 词： | 土壤 铬污染 生态效应 形态分布 沈阳市新城子区 |
| 收稿时间： | 2009-6-4 |
| 修稿时间： | 2009-7-10 |
Cr distribution and speciation in soil at Xinchengzi chromic residue piled site of Shenyang, Liaoning province |
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| HUI Xiu-juan,MENG Xue-lian,XU Cheng-bing,MA Xi-ping,FU Bao-rong.Cr distribution and speciation in soil at Xinchengzi chromic residue piled site of Shenyang, Liaoning province[J].Journal of Meteorology and Environment,2009,25(6):64-67. |
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| Authors: | HUI Xiu-juan MENG Xue-lian XU Cheng-bing MA Xi-ping FU Bao-rong |
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| Institution: | 1. School of Environmental Science, Liaoning University, Shenyang 110036, China; 2. School of Pharmacy, Liaoning University, Shenyang 110036, China |
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| Abstract: | Cr distributions and translocation in soil were analyzed by Tessier A sequential extraction method at Xinchengzi chromic residue piled site of Shenyang, Liaoning province. The results indicate that there are five chromic speciations in soil. Of them, exchangeable speciation and carbonatic speciation account for 49.74% and 21.4% respectively, while organic speciation is only 6.25%. Chromic speciation is different in different areas. The order of Cr distribution is residual fraction> carbonatic fraction> exchangeable fraction>Fe-Mn oxides fraction>organic fraction. |
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| Keywords: | Soil Chrome (Cr) contamination Ecological effect Specialtion Xinchengzi district of Shenyang |
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