商陆对镉的富集特征

聂发辉; 吴彩斌; 吴双桃

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商陆对镉的富集特征

聂发辉 , 吴彩斌 , 吴双桃

文章导航 > 浙江农林大学学报 > 2006 > 23(4): 400-405

聂发辉, 吴彩斌, 吴双桃. 商陆对镉的富集特征[J]. 浙江农林大学学报, 2006, 23(4): 400-405.

引用本文:

聂发辉, 吴彩斌, 吴双桃. 商陆对镉的富集特征[J]. 浙江农林大学学报, 2006, 23(4): 400-405.

NIE Fa-hui, WU Cai-bin, WU Shuang-tao. Characteristics of Phytolacca acinosa accumulating Cd[J]. Journal of Zhejiang A&F University, 2006, 23(4): 400-405.

Citation:

NIE Fa-hui, WU Cai-bin, WU Shuang-tao. Characteristics of Phytolacca acinosa accumulating Cd[J]. Journal of Zhejiang A&F University, 2006, 23(4): 400-405.

商陆对镉的富集特征

1.
同济大学环境科学与工程学院, 上海 200092;
2.
华东交通大学土木建筑学院, 江西南昌 330013;
3.
韩山师范学院环境化学应用技术研究所, 广东潮州 521041

基金项目:

湖南省自然科学基金资助项目(02JJY4058); 华东交通大学科研基金资助项目(304109)

详细信息

作者简介: 聂发辉, 讲师, 博士研究生, 从事城市污水处理等研究。E-mail: wyynfh@yahoo.com.cn

通信作者: 聂发辉, 讲师, 博士研究生, 从事城市污水处理等研究。

中图分类号: S718.3 ; Q948

Characteristics of Phytolacca acinosa accumulating Cd

1.
.School of Environmental Science and Engineering , Tongji University , Shanghai 200092 , China;
2.
.School of Civil Engineering and Architecture , East China Jiaotong University , Nanchang 330013, Jiangxi , China;
3.
Research Institute of Environmental Chemistry and Technology , Hanshan Normal College , Chaozhou 521041 , Guangdong , China

Funds:

湖南省自然科学基金资助项目(02JJY4058);华东交通大学科研基金资助项目(304109)

摘要: 超积累植物的确证对成功实施重金属污染环境植物修复是必不可少的。对位于湖南省株洲冶炼厂厂区的植物进行了一系列的野外调查, 以着力寻找镉的超积累植物。结果表明,商陆科Phytolaccaceae 植物商陆Phytolacca acinosa 对镉具有明显的富积特性, 商陆在镉质量分数最高达106.0mgkg-1厂区土壤中依然生长良好, 茎叶中镉质量分数高达63.8mgkg-1 。盆栽条件下, 商陆对生长介质中的镉具有很强的耐性和累积能力。当生长介质中镉质量分数为5.0 mgkg-1时, 其生物量与对照相比有所增加。随着生长介质中镉质量分数的升高, 虽然其生物量与对照相比有所降低, 但植株仍生长良好。其地上和地下部分镉的质量分数逐渐增加, 生物富集系数则逐渐降低。当土壤中镉的质量分数达到200.0 mgkg-1 时, 商陆仍能完成整个生命周期。此外, 还利用吸收量系数对商陆对镉的去除能力和富集特征进行了评价,进一步验证了商陆的镉超积累特性。图3 表5 参12
- 植物学 /
- 商陆 /
- 植物修复 /
- 镉 /
- 超富集植物
Abstract: Identification of new hyperaccumulators is of great importance to successful phytoremediation of the environment contaminated with heavy metal .A series of field investigations was conducted in the vicinity of Zhuzhou Pb-Zn Smelting Factory to search for new Cd hyperaccumulators .The results showed that Phytolacca acinosa could highly accumulate Cd .With the maximum Cd mass fraction in the leaf and stem reaching 63.8 mg kg-1 , the plant grew well in the vicinity of Smelting Factory with Cd mass fraction being as high as 106.0 mg kg-1 .An outdoor pot-culture experiment was conducted to further study metal tolerance and accumulation by Phytolacca acinosa and its potential for phytoremediation .As a result , this species had not only remarkable tolerance to Cd , but also an extraordinary capacity for this element , P .acinosa could grow quite well with Cd supplied at a level of 5 mgkg-1 and its biomass was more than that of plant in control with Cd supplied .With the Cd concentration in the media increasing , the Cd concentration in its overground parts and in the roots increased , but the bioaccumulation coefficient gradually decreased , although its biomass was less than that of plant in control with Cd supplied .As the Cd mass fraction in the soil reached 200 mg kg-1 , P .acinosa still grew well. Furthermore , P .acinosa was judged whether it was hyperaccumulator with coefficient absorption capacity .It further proved that P .acinosa had the great capacity of transporting Cd from the roots to the aerial parts .[ Ch , 3 fig .5 tab .12 ref .]
- botany /
- Phytolacca acinosa /
- phytoremediation /
- Cd /
- hyperaccumulator

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商陆对镉的富集特征

1. 同济大学环境科学与工程学院, 上海 200092;

2. 华东交通大学土木建筑学院, 江西南昌 330013;

3. 韩山师范学院环境化学应用技术研究所, 广东潮州 521041

基金项目:

湖南省自然科学基金资助项目(02JJY4058); 华东交通大学科研基金资助项目(304109)

作者简介:
聂发辉, 讲师, 博士研究生, 从事城市污水处理等研究。E-mail: wyynfh@yahoo.com.cn

通信作者: 聂发辉, 讲师, 博士研究生, 从事城市污水处理等研究。

收稿日期: 2005-10-21
修回日期: 2006-03-06
刊出日期: 2006-08-20

中图分类号: S718.3 ; Q948

关键词:

摘要: 超积累植物的确证对成功实施重金属污染环境植物修复是必不可少的。对位于湖南省株洲冶炼厂厂区的植物进行了一系列的野外调查, 以着力寻找镉的超积累植物。结果表明,商陆科Phytolaccaceae 植物商陆Phytolacca acinosa 对镉具有明显的富积特性, 商陆在镉质量分数最高达106.0mgkg-1厂区土壤中依然生长良好, 茎叶中镉质量分数高达63.8mgkg-1 。盆栽条件下, 商陆对生长介质中的镉具有很强的耐性和累积能力。当生长介质中镉质量分数为5.0 mgkg-1时, 其生物量与对照相比有所增加。随着生长介质中镉质量分数的升高, 虽然其生物量与对照相比有所降低, 但植株仍生长良好。其地上和地下部分镉的质量分数逐渐增加, 生物富集系数则逐渐降低。当土壤中镉的质量分数达到200.0 mgkg-1 时, 商陆仍能完成整个生命周期。此外, 还利用吸收量系数对商陆对镉的去除能力和富集特征进行了评价,进一步验证了商陆的镉超积累特性。图3 表5 参12

English Abstract

Characteristics of Phytolacca acinosa accumulating Cd

1. .School of Environmental Science and Engineering , Tongji University , Shanghai 200092 , China;

2. .School of Civil Engineering and Architecture , East China Jiaotong University , Nanchang 330013, Jiangxi , China;

3. Research Institute of Environmental Chemistry and Technology , Hanshan Normal College , Chaozhou 521041 , Guangdong , China

Funds:

湖南省自然科学基金资助项目(02JJY4058);华东交通大学科研基金资助项目(304109)

Received Date: 2005-10-21
Rev Recd Date: 2006-03-06
Publish Date: 2006-08-20

Keywords:

Abstract: Identification of new hyperaccumulators is of great importance to successful phytoremediation of the environment contaminated with heavy metal .A series of field investigations was conducted in the vicinity of Zhuzhou Pb-Zn Smelting Factory to search for new Cd hyperaccumulators .The results showed that Phytolacca acinosa could highly accumulate Cd .With the maximum Cd mass fraction in the leaf and stem reaching 63.8 mg kg-1 , the plant grew well in the vicinity of Smelting Factory with Cd mass fraction being as high as 106.0 mg kg-1 .An outdoor pot-culture experiment was conducted to further study metal tolerance and accumulation by Phytolacca acinosa and its potential for phytoremediation .As a result , this species had not only remarkable tolerance to Cd , but also an extraordinary capacity for this element , P .acinosa could grow quite well with Cd supplied at a level of 5 mgkg-1 and its biomass was more than that of plant in control with Cd supplied .With the Cd concentration in the media increasing , the Cd concentration in its overground parts and in the roots increased , but the bioaccumulation coefficient gradually decreased , although its biomass was less than that of plant in control with Cd supplied .As the Cd mass fraction in the soil reached 200 mg kg-1 , P .acinosa still grew well. Furthermore , P .acinosa was judged whether it was hyperaccumulator with coefficient absorption capacity .It further proved that P .acinosa had the great capacity of transporting Cd from the roots to the aerial parts .[ Ch , 3 fig .5 tab .12 ref .]

聂发辉, 吴彩斌, 吴双桃. 商陆对镉的富集特征[J]. 浙江农林大学学报, 2006, 23(4): 400-405.

引用本文:

聂发辉, 吴彩斌, 吴双桃. 商陆对镉的富集特征[J]. 浙江农林大学学报, 2006, 23(4): 400-405.

NIE Fa-hui, WU Cai-bin, WU Shuang-tao. Characteristics of Phytolacca acinosa accumulating Cd[J]. Journal of Zhejiang A&F University, 2006, 23(4): 400-405.

Citation:

NIE Fa-hui, WU Cai-bin, WU Shuang-tao. Characteristics of Phytolacca acinosa accumulating Cd[J]. Journal of Zhejiang A&F University, 2006, 23(4): 400-405.