| 玉米根际土壤中不同重金属的形态变化 |
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| 引用本文： | 陈有鑑,黄艺,曹军,陶澍.玉米根际土壤中不同重金属的形态变化[J].土壤学报,2003,40(3):367-373. |
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| 作者姓名： | 陈有鑑 黄艺 曹军 陶澍 |
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| 作者单位： | 北京大学城市与环境学系,地表过程分析与模拟教育部重点实验室,北京,100871 |
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| 基金项目： | 国家自然科学基金项目 ( 4 0 1 0 1 0 2 5,4 0 0 2 4 1 0 1 )资助 |
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| 摘 要： | 采用根垫法研究了不同生长时期的玉米根际土壤中铜、镉、铅、锌和铬的形态变化。结果表明 ,玉米生长 1 0 0d内不同重金属的形态变化有显著差别。交换态铜 ,碳酸盐态铜和锌 ,铁锰态铜、铅和铬 ,有机态铜、铅和铬都有明显变化。在 1 0 0d生长期间 ,不同重金属在根际土壤中的相对变化有较大幅度的波动。植物吸收主要影响根际土壤交换态铜和碳酸盐态铜和锌的变化 ,对镉和铅形态变化影响不大。
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| 关 键 词： | 重金属 根际土壤 形态 玉米 |
| 收稿时间： | 2001/8/21 0:00:00 |
| 修稿时间： | 2001年8月21日 |
CHANGES IN FRACTIONS OF HEAVY METALS IN MAIZE RHIZOSPHERE SOIL |
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| Chen You-jian,Huang Yi,Cao Jun and Tao Shu.CHANGES IN FRACTIONS OF HEAVY METALS IN MAIZE RHIZOSPHERE SOIL[J].Acta Pedologica Sinica,2003,40(3):367-373. |
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| Authors: | Chen You-jian Huang Yi Cao Jun and Tao Shu |
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| Institution: | Department of Urban and Environmental Sciences, Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China;Department of Urban and Environmental Sciences, Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China;Department of Urban and Environmental Sciences, Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China;Department of Urban and Environmental Sciences, Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China |
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| Abstract: | Changes in fractionation of copper, cadmium, lead, zinc and chromium in the rhizosphere of maize during a period of 100 days were investigated using rootmat box. It was shown that there were significant changes in all forms of copper and cadmium and some forms of zinc and lead. The changes varied in direction and magnitude during the experimental period. Uptake of plant remarkably influenced exchangeable copper and carbonate bound copper and zinc. |
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| Keywords: | Heavy metal Rhizosphere Fractionation Maize |
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