| 汞矿废弃地草本植物对汞污染土壤的适应性特征 |
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| 引用本文： | 王明勇,乙引,张习敏,宋丽莎.汞矿废弃地草本植物对汞污染土壤的适应性特征[J].贵州农业科学,2010,38(1). |
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| 作者姓名： | 王明勇 乙引 张习敏 宋丽莎 |
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| 作者单位： | 1. 贵州师范大学,生命科学学院,贵州,贵阳,550001
2. 黔南民族师范学院,贵州,都匀,558000 |
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| 基金项目： | 国家自然科学基金项目“喀斯特森林喜钙植物嗜钙机理及其环境适应性”(30460031);;贵州师范大学学生科学研究基金“耐汞植物的筛选及其汞累积规律研究” |
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| 摘 要： | 对贵州万山汞矿废弃地自然生长的14种草本植物进行了调查,评价并分析了它们对汞污染土壤的耐受性和体内的汞含量,研究表明,在所采集的14种草本植物中,乳浆大戟等4种植物对汞污染土壤的敏感性最差,对汞污染土壤在植物形态上却表现出了最好的适应性特征,其中乳浆大戟的汞富集量最高,为14.45 mg/kg;金鸡草等7种植物在对汞污染土壤的敏感性和适应性上均表现较差,其中葫芦藓对汞的富集量最小,为1.45 mg/kg;蜈蚣草等3种植物对汞污染土壤的敏感性最好,环境适应性表现最差,但蜈蚣草却有最大生物量为171株/样方,说明蜈蚣草在汞污染环境中生活力较强。
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| 关 键 词： | 草本植物 汞 污染 适应 矿区 |
Adaptation of Herbaceous Plants in the Waste Mercury Mining Area to the Mercury-polluted Soil |
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| WANG Ming-yong,YI Yin,ZHANG Xi-min,SONG Li-sha.Adaptation of Herbaceous Plants in the Waste Mercury Mining Area to the Mercury-polluted Soil[J].Guizhou Agricultural Sciences,2010,38(1). |
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| Authors: | WANG Ming-yong YI Yin ZHANG Xi-min SONG Li-sha |
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| Institution: | 1.School of Life Science;Guizhou Normal University Guiyang;Guiyang;Guizhou 550001;2.National Normal College of Qiannan Prefecture;Duyun;Guizhou 558000;China |
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| Abstract: | 14 herbaceous plants,grown in the waste mercury mining area,were studied to evaluate and analyze their mercury tolerance and mercury content.The results showed that four herbaceous plants(Euphorbia esula,Xanthium sibiricum,Pennisetum longissimum and Polygonum hydropiper) had low sensibility to mercury and high mercury enrichment.Among them,Euphorbia esula had the highest mercury content in 14.45 mg/kg.In addition,seven plants(Coniogramme japonica,Erigeron canadensis,Medicago Stativa,Funaria hygromerica,Achi... |
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| Keywords: | herbaceous plant mercury polluted adaptation mining area |
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