| 水培大米草吸收汞及其净化环境作用的探讨 |
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| 引用本文： | 仲崇信,钦佩.水培大米草吸收汞及其净化环境作用的探讨[J].海洋科学,1983,7(2):6-11. |
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| 作者姓名： | 仲崇信 钦佩 |
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| 作者单位： | 南京大学大米草及海滩开发研究所
(仲崇信)，南京大学大米草及海滩开发研究所(钦佩) |
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| 摘 要： | 互花米草(Spartina alterniflora)是美国东南沿海的主要盐沼植物,其每年的生产量至少为700g/m~2。H.L.Windom指出,这种植物每年对汞的富集量为当年沉积物中汞的积累量的十倍以上。作为互花米草和欧洲米草的天然杂交种大米草(S.anglica),对汞污染的反应如何呢?我们的试验证明,大米草对汞等污染物质的吸收和抵抗能力至少不应小于其亲本。同时,本文在用大米草净化环境方面提供了一些设想。
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AN INQUIRY INTO THE MERCURY ABSORPTION OF SPARTINA ANGLICA AND ITS ENVIRONMENTAL PURIFICATION EFFECT |
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| Abstract: | This is a report of preliminary water culture experiments of absorption of mercury by big rice grass, Spartina anglica, which is a very vigorous and stress resistant halophyte. The amounts of mercury absorbed by the shoots from water culture of different concentrations are 10-56 times the initial amounts and those absorbed by roots are 250-2500 times. The most efficient absorption by the tillers was found to be almost half of the original amount in the 1 ppm culture after four-week absorption. The curve of S. anglica absorption of mercury is a positive relative exponent curve. Hence S. anglica is found to be rather effective as an agent to remove pollutants, especially in the case of mercury. |
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