| 印度芥菜对土壤中难溶态镉、铅的吸收差异 |
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| 引用本文： | 苏德纯,黄焕忠,张福锁.印度芥菜对土壤中难溶态镉、铅的吸收差异[J].生态环境,2002,11(2):125-128. |
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| 作者姓名： | 苏德纯 黄焕忠 张福锁 |
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| 作者单位： | 1. 中国农业大学资源与环境学院植物营养系,北京,100094
2. 香港浸会大学生物系,香港九龙塘 |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999011707)，香港研究资助局(RGC)项目(HKBU2043/98M) |
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| 摘 要： | 通过根际袋法土培盆栽试验,研究了印度芥菜对石灰性土壤中难溶态Cd、Pb的吸收差异。试验结果表明,印度芥菜能吸收石灰性土壤中的难溶态Cd、Pb并对其有较高的忍耐性。印度芥菜吸收的Cd 70%以上累积在地上部而吸收的Pb 83%以上累积在根系;印度芥菜根际土壤中的DTPA提取态Cd显著高于非根际土壤,但根际与非根际土壤中的DTPA提取的Pb含量差异不显著。本试验条件下,印度芥菜对土壤Cd的净化率为0.83%~1.25%,对土壤Pb的净化率则只有0.04%~0.07%。
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| 关 键 词： | 印度芥菜 镉 铅 根际 |
| 文章编号： | 1008-181X(2002)02-0125-04 |
| 修稿时间： | 2001年11月13 |
The difference between Cd and Pb uptake by Indian Mustard (Brassica juncea) grown in an artificial contaminated calcareous soil |
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| SU De-chun,WONG J W C,ZHANG Fu-suo :.The difference between Cd and Pb uptake by Indian Mustard (Brassica juncea) grown in an artificial contaminated calcareous soil[J].Ecology and Environmnet,2002,11(2):125-128. |
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| Authors: | SU De-chun WONG J W C ZHANG Fu-suo : |
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| Institution: | SU De-chun1,WONG J W C2,ZHANG Fu-suo1 1:Department of Plant Nutrition,China Agricultural University,Beijing 100094,China., 2:Department of Biology,Hong Kong Baptist University,Kowloon Tong,Hong Kong,China |
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| Abstract: | Cadmium and lead uptake by Indian Mustard was studied using rhizobag potting system. The results showed that Indian Mustard was more tolerant to higher level of Cd and Pb in the calcareous soil. DTPA-extractable Cd in rhizosphere of Indian mustard was significantly higher than that of the non-rhizosphere but DTPA-extractable Pb was not. 71%~82% of Cd uptake by Indian Mustard was existed in shoot but Pb was only 9%~17%. The Cd removal percentage from the soils by Indian Mustard were 0.83% to 1.25% but the Pb were only 0.04%~0.07%. |
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| Keywords: | cadmium lead indian mustard rhizosphere |
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