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作 者 ：雷梅,岳庆玲,陈同斌,黄泽春,廖晓勇,刘颖茹,郑国砥,常庆瑞

期 刊 ：生态学报 2005年 25卷 5期 页码：1146~1151

关键词：重金属；土壤；植物；矿区；

Keywords:heavy metal, soil, plant, mining area,

摘 要 ：矿区重金属污染十分严重,寻找和发现适合当地气候与土壤条件的重金属耐性植物是矿区植被恢复和污染土壤修复的前提。对我国湖南柿竹园有色金属矿区调查发现,该地区选矿厂的重金属污染问题普遍比尾砂库严重。选矿厂土壤砷、镉、铅、锌严重超标,尾砂库周围也受到不同程度的重金属污染。土壤重金属胁迫效应影响着植物物种分布,选矿厂物种分布较少,相比之下尾砂库的植物多样性较为丰富。柿竹园矿区植物对重金属的吸收表现为富集型(如蜈蚣草Pteris Vittata L .和苎麻Boehmerianivea (L .) Gaud.)、根部囤积型(如攀倒甑Patrinia villosa和木贼Equisetum hyemale)和规避型(如蔓出卷柏Selaginelladavidii Franch和芒草Miscanthus sinensis Andlerss)等3种类型。

Abstract:Land contaminated by high levels of heavy metals in mining area is urgent to be remidiated. To find out the tolerant plants, which can adapt to the local climate and the soil conditions, is the premise of vegetation reconstruction. Field survey was carried out in the Shizhuyuan mining area of Hunan Province, which is the national largest nonferrous mine in China. Fifteen soil samples and 72 samples of 48 plants were collected during the field surveys at 5 contaminated sites, including the Caishan Smelter, t...

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