| 西宁市不同功能城区土壤重金属镉含量及形态研究 |
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| 引用本文： | 刘育红,郑伟.西宁市不同功能城区土壤重金属镉含量及形态研究[J].宁夏农林科技,2011,52(5):47-48,50. |
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| 作者姓名： | 刘育红 郑伟 |
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| 作者单位： | 青海大学农牧学院,青海西宁,810016 |
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| 基金项目： | 青海大学中青年科研基金项目 |
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| 摘 要： | 采取Tessier连续提取法,对西宁市不同功能城区土壤重金属镉的含量及形态分布进行研究。结果表明：西宁市各功能区土壤的全镉含量是全国土壤几何平均值的7.4-11.1倍,重金属镉污染比较严重;不同功能区中,不同形态的Cd分布有较大的差异;Cd以残渣态为主;矿冶区和开发区Cd的金属活性相对较强,具有一定的生物有效性和潜在的生态危害性。
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| 关 键 词： | 镉 Tessier连续提取法 活性 功能区 |
The Form and Content of Heavy Metal Cd in Different Functional Zones of Xining City |
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| Institution: | LIU Yu-hong et al(College of Agriculture and Animal Husbandry,Qinghai University,Xining,Qinghai 810016) |
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| Abstract: | The form and content of heavy metal Cd in different functional zones of Xining city were measured using Tessier sequential extraction procedure. The results showed that Cd content in different functional zones of Xining city was 7.4 to 11.1 times the mean values of national soil, and heavy metal Cd had seriously polluted. There was considerable difference in distribution of different form Cd in different functional zones. Cd mainly existed in residual state. Metal Cd activity was relatively stronger in metallurgy zone and newly developed zone, and indicated some bioavailability and potential ecological dangers. |
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| Keywords: | Cd Tessier sequential extraction procedure Activity Functional zone |
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