| Compound contamination and secondary ecological effects of Cd and As in soil-alfalfa ecosystems |
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| 引用本文： | Zhou Qixing,Gao Zhengmin. Compound contamination and secondary ecological effects of Cd and As in soil-alfalfa ecosystems[J]. 环境科学学报(英文版), 1994, 6(3): 330-336 |
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| 作者姓名： | Zhou Qixing Gao Zhengmin |
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| 作者单位： | Institute of Applied Ecology，Chinese academy of Sciences)，Shenyang 10015，China) |
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| 摘 要： | ＣｏｍｐｏｕｎｄｃｏｎｔａｍｉｎａｔｉｏｎａｎｄｓｅｃｏｎｄａｒｙｅｃｏｌｏｇｉｃａｌｅｆｆｅｃｔｓｏｆＣｄａｎｄＡｓｉｎｓｏｉｌ－ａｌｆａｌｆａｅｃｏｓｙｓｔｅｍｓ（ＺｈｏｕＱｉｘｉｎｇ；ＧａｏＺｈｅｎｇｍｉｎ）（ＩｎｓｔｉｔｕｔｅｏｆＡｐｐｌｉｅ...
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| 关 键 词： | compound contamination,ecological effects,Cd As soil. |
| 收稿时间： | 1993-02-26 |
Compound contamination and secondary ecological effects of Cd and As in soil-alfalfa ecosystems |
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| Zhou Qixing,Gao Zhengmin. Compound contamination and secondary ecological effects of Cd and As in soil-alfalfa ecosystems[J]. Journal of environmental sciences (China), 1994, 6(3): 330-336 |
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| Authors: | Zhou Qixing Gao Zhengmin |
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| Abstract: | d and As both have harmful effects on the growth,development and seed germination of alfalfa, especially in such a condition as the coexistence of Cd and As in soil environment The research using the pot-culture imitative method first found that if soil was simultaneously polluted by Cd and As,function of alfalfa absorbing Cd from soil may be promoted because of the existence of As,in conversely,Cd may inhibit alfalfa plant from absorbing As It was also found that secon- dary ecological effects were most likely to be brought out due to the coexistence of Cd and As. For example,alfalfa is passive to excessively absorb Cu and Pb .The harmful effects undoubtedly intensi- fy the contamination of alfalfa, The results showed that the mechanism of the interaction among Cd,As,Pb and Cu in soil-alfalfa ecosystems is very complicated. |
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| Keywords: | compound contamination ecological effects Cd As soil. |
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