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THE EFFECT OF ATMOSPHERIC MERCURY ON THE ACCUMU-LATION OF MERCUPY IN SOIL-PLANT SYSTEM
Author(s): 
Pages: 194-198
Year: Issue:  2
Journal: ACTA SCIENTIAE CIRCUMSTANTIAE

Keyword:  大气土壤-植物系统汞累积;
Abstract: 采用室内模拟试验的方法,研究了大气汞污染对土壤-植物系统的危害及其机理.结果表明,植物可吸收大气汞,也可吸收土壤汞.当植物汞源于气汞时,其地上部汞含量高于根部;源于土壤汞时,则根汞高于地上部汞.土壤汞累积的来源可通过直接吸附大气汞,也来源于植物汞的输入.土壤添加腐殖质后,对大气汞的吸附能力更大;土壤覆盖农膜后,可有效地阻止对大气汞的吸附.
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