| 土壤铜、 铬(Ⅵ)复合污染重金属形态转化及其对生物有效性的影响 |
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| 引用本文： | 王丹,魏威,梁东丽,王松山,胡斌.土壤铜、 铬(Ⅵ)复合污染重金属形态转化及其对生物有效性的影响[J].环境科学,2011,32(10):3113-3120. |
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| 作者姓名： | 王丹 魏威 梁东丽 王松山 胡斌 |
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| 作者单位： | 西北农林科技大学资源环境学院,杨凌,712100 |
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| 基金项目： | 公益性行业（农业）科研专项经费项目(200903015-05)；西北农林科技大学“创新团队建设计划”项目 |
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| 摘 要： | 通过盆栽试验和室内化学分析相结合的方法,研究了外源铜、铬（Ⅵ）单一和复合污染中土壤金属形态转化及其对生物有效性的影响.结果表明,外源铜、铬（Ⅵ）单一污染土壤中,铬主要以残渣态和有机结合态形式存在,而铜则主要以铁锰氧化物结合态和残渣态形式存在.铜、铬（Ⅵ）复合污染时,低浓度铜（≤400 mg.kg-1）促进铬向交换态转化...
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| 关 键 词： | 铜 铬 复合污染 重金属形态 生物有效性 |
| 收稿时间： | 2010/11/29 0:00:00 |
| 修稿时间： | 2011/3/21 0:00:00 |
Transformation of Copper and Chromium in Co-contaminated Soil and Its Influence on Bioavailability for Pakchoi (Brassica chinensis) |
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| WANG Dan,WEI Wei,LIANG Dong-li,WANG Song-shan and HU Bin.Transformation of Copper and Chromium in Co-contaminated Soil and Its Influence on Bioavailability for Pakchoi (Brassica chinensis)[J].Chinese Journal of Environmental Science,2011,32(10):3113-3120. |
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| Authors: | WANG Dan WEI Wei LIANG Dong-li WANG Song-shan and HU Bin |
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| Institution: | WANG Dan,WEI Wei,LIANG Dong-li,WANG Song-shan,HU Bin(College of Resources and Environment,North-west A&F University,Yangling 712100,China) |
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| Abstract: | Heavy metal fractions in soil play an important role in the bioavailability for plants.A pot experiment was carried out to study the transformation and bioavailability for pakchoi of exogenetic copper and hexavalent chromium in co-contaminated soil.The results showed that one month after tested heavy metals were added into soil,the chromium was present mainly in residual and organic bonded form while copper was mainly bound to hydrated oxides of iron and manganese as well as residual form.Lower concentratio... |
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| Keywords: | copper hexavalent chromium combined pollution heavy metal fraction bioavailability |
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