| 施用制革污泥土壤中铬的积累、化学形态及其植物有效性 |
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| 引用本文： | 马宏瑞,李桂菊,章川波,丁绍兰,俞从正.施用制革污泥土壤中铬的积累、化学形态及其植物有效性[J].环境科学,2001,22(3):70-73. |
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| 作者姓名： | 马宏瑞 李桂菊 章川波 丁绍兰 俞从正 |
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| 作者单位： | 西北轻工业学院皮革工程系陕西,咸阳,712081 |
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| 基金项目： | 联合国工发组织资助项目(Project No.US/CPR/97/022) |
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| 摘 要： | 通过对施用制革污泥土壤中铬的含量和形态、作物中铬积累量的测定,结合小麦幼苗培养试验,对Cr的化学形态与植物有效性的关系进行了研究.结果表明,施用污染后2mol/L HCl浸提态Cr的大幅度增长可能是造成作物Cr含量增加的主要原因,当土壤中Cr含量为220mg/kg时,小麦植株达到最大吸收量23.5mg/kg.高浓度Cr投入2种不同土壤时,小麦与水稻茎叶中Cr含量基本一致,而籽粒中含量则随作物种类有较大变化.
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| 关 键 词： | 铬 植物有效性 形态 制革污泥 |
| 文章编号： | 0250-3301(2001)03-04-0070 |
| 收稿时间： | 2000/10/18 0:00:00 |
| 修稿时间： | 2000年10月18 |
Accumulation,Chemical Fractions and Phytoavailability of Cr in Tannery Sludge-amended Soils |
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| Ma Hongrui,Li Guiju,Zhang Chuanbo,Ding Shaolan and Yu Congzheng.Accumulation,Chemical Fractions and Phytoavailability of Cr in Tannery Sludge-amended Soils[J].Chinese Journal of Environmental Science,2001,22(3):70-73. |
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| Authors: | Ma Hongrui Li Guiju Zhang Chuanbo Ding Shaolan and Yu Congzheng |
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| Institution: | Northwest Institute of Light Industry, Xianyang Shanxi 712081. |
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| Abstract: | The phytoavailability of various fractions in the tannery sludge amended soils was investigated employing a sequential extraction procedure as well as seedling culture experiment.The results showed that 2mol/L HCl extractable Cr could be the major fraction of soil Cr available to the plants.When the Cr content in soil was about 220 mg/kg,the Cr concentration of in plant reached maximum of 23.5mg/kg,which was hardly approachable in field condition. |
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| Keywords: | Cr phytoavailability chemical fractions tannery sludge |
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