| 锌冶炼不同群落生境蟋蟀汞污染 |
| 摘要点击 1684 全文点击 1086 投稿时间：2011-12-12 修订日期：2012-02-15 |
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| 中文关键词 汞 蟋蟀 器官 分布 群落生境 |
| 英文关键词 mercury cricket organ distributing biotope |
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| 中文摘要 |
| 研究了葫芦岛锌厂周围不同群落生境蟋蟀汞含量,比较了蟋蟀与其它昆虫汞含量的差异,探讨了汞在不同群落蟋蟀体内的分布特征. 结果表明,蟋蟀汞含量很高,平均值为0.081 mg·kg-1,远高于对照点群落汞含量(0.012 mg·kg-1); 蟋蟀体内汞的分布特征为 头＞翅膀＞胸≈腹＞足. 不同群落生境中蟋蟀汞含量差异明显,蟋蟀汞含量与距离污染源的远近、植物茎汞存在显著的相关关系. 与土壤汞之间无明显的相关关系. 蟋蟀汞含量低于生命周期较长的蝉汞含量,与生命周期较短的其它昆虫相近. |
| 英文摘要 |
| Total mercury contents in cricket bodies were studied in different biotopes in the surrounding of Huludao Zinc Plant to discuss the mercury distribution characteristics in cricket and to reveal the effects of environmental mercury accumulation in the short life-cycle insects through comparing cricket with other insect species. The average mercury content in cricket was 0.081 mg·kg-1 and much higher than those in the control sites (0.012 mg·kg-1 in average) in different biotopes. Mercury contents were found in the order of cricket head>wing>thorax ≈ abdomen>leg. Mercury contents in cricket bodies varied greatly with sample sites. Significant correlation was found between the mercury contents in cricket and the distance from the pollution source as well as the mercury contents in plant stems. No significant correlation was found between the mercury contents in soil and in cricket bodies. Mercury contents in cricket were lower than those in cicadae, similar to those in other insects with shorter life-cycle periods. |
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