| 干旱区绿洲土壤中Cd、Pb、Zn、Ni复合污染对芹菜的影响及其富集迁移规律 |
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| 引用本文： | 廖琴,王胜利,南忠仁,晋王强,武文飞.干旱区绿洲土壤中Cd、Pb、Zn、Ni复合污染对芹菜的影响及其富集迁移规律[J].干旱区资源与环境,2011(7):173-177. |
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| 作者姓名： | 廖琴 王胜利 南忠仁 晋王强 武文飞 |
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| 作者单位： | 西部环境教育部重点实验室兰州大学资源环境学院; |
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| 基金项目： | 兰州大学中央高校基本科研业务费专项资金(lzujbky-2009-65); 国家环境保护公益性项目(NEPCP200809098)资助 |
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| 摘 要： | 通过盆栽试验和室内分析初步研究了干旱区绿洲土壤中Cd、Pb、Zn、Ni复合污染对芹菜生长的影响及重金属在芹菜体内的富集迁移规律。结果表明:随着外源重金属添加量的增加,芹菜的生长受到明显抑制。根据多元回归分析和偏相关分析,芹菜地上部和根部吸收Pb量分别与外源添加Pb、Zn、Ni量和Cd、Pb、Zn、Ni量达到极显著相关,其中土壤Zn含量的增加极显著的降低了芹菜地上部和根部对Pb的吸收。芹菜地上部及根部对Cd、Pb、Zn、Ni四种元素的富集系数大小顺序均为:Cd>Zn>Ni>Pb,且根部对四种重金属元素的富集能力显著大于地上部。Cd在芹菜中的平均迁移能力最强,Zn、Ni次之,Pb的迁移能力最弱。
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| 关 键 词： | 绿洲土壤 重金属 芹菜 生物量 富集与迁移 |
Effects of Cd,Pb,Zn and Ni on celery growth and their enrichment and transfer characters in arid oasis soils |
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| LIAO Qin,WANG Shengli,NAN Zhongren,JIN Wangqiang,WU Wenfei,College of Resources , Environment Sciences,Lanzhou ,P.R.China.Effects of Cd,Pb,Zn and Ni on celery growth and their enrichment and transfer characters in arid oasis soils[J].Journal of Arid Land Resources and Environment,2011(7):173-177. |
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| Authors: | LIAO Qin WANG Shengli NAN Zhongren JIN Wangqiang WU Wenfei College of Resources Environment Sciences Lanzhou PRChina |
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| Institution: | LIAO Qin,WANG Shengli,NAN Zhongren,JIN Wangqiang,WU Wenfei(Key Laboratory of Western China's Environment(Ministry of Education),College of Resources and Environment Sciences,Lanzhou 730000,P.R.China) |
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| Abstract: | Pot experiment was conducted to study the effects of Cd,Pb,Zn and Ni on celery growth and heavy metals accumulation and migration in celery when grown in arid oasis soils.The results showed that with the increase of concentrations of heavy metals added into the soil,the growth of celery roots and leaves were inhibited obviously.According to the results of multiple regression and partial correlation analysis,the absorbtion of the four elements in celery roots and shoots were affected by their own doses in so... |
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| Keywords: | oasis soils heavy metals celery biomass accumulation and migration |
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