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商陆对锰污染土壤的修复实验研究(PDF)

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2014年03期
页码:
344-347
栏目:
植物生态与生物地理学
出版日期:
2014-07-02

文章信息/Info

Title:
Experimental research of phytoremediation properties about Phytolacca acinosa on Mn-contaminated soil
作者:
赵盈丽1 游少鸿1* 刘 杰1 芦晓燕2 杨明匀1 何昌杰1
1. 桂林理工大学 广西矿冶与环境科学实验中心, 广西 桂林 541004; 2. 广西华蓝设计(集团)有限公司, 南宁 530000
Author(s):
ZHAO Ying-Li1 YOU Shao-Hong1* LIU Jie1 LU Xiao-Yan2 YANG Ming-Yun1 HE Chang-Jie1
1. Guangxi Scientific Experiment Center of Mining, Metallurgy and Environment, Guilin University of Technology, Guilin 541004, China; 2. Guangxi Hualan Design Group Co. Ltd, Nanning 530000, China
关键词:
商陆 植物修复 土壤
Keywords:
Phytolacca acinosa manganese phytoremediation soil
分类号:
Q948.116
DOI:
-
文献标识码:
A
摘要:
商陆是在中国境内发现的多年生、草本型锰超积累植物。通过室内土培试验,评价商陆对土壤中锰的去除潜力,确定最佳收获时间,以期达到最佳的重金属污染土壤植物修复效果。结果表明:商陆能将土壤中的锰转运到地上部位,叶片中Mn含量最高,平均值为17 043 mg/kg DW,远远大于茎和根的锰含量均值; 单株的平均富集量在浓度为500 mg/kg DW时达最高,一棵商陆可富集平均13 mg的Mn; 动态修复中确定的最佳收获时间为60 d,不同时间收获的商陆地下部分生物量差异不明显(P>0.05),地上部分则差异较大。连续收获不改变其锰生物富集能力。这表明商陆对锰有较强的富集能力,是一种优良的修复锰污染土壤的物种,对土壤重金属污染的治理及植物修复领域数据库的完善具有重要意义。
Abstract:
Phyloalcca acinosa found in the territory of China is a kind of perennial and herbaceous manganese hyperaccumulator plant. In order to achieve the best effect of repairment, the potential of P. acinosa for removal of manganese in soil were evaluated, and confirmed the optimal harvest time, used by the indoor test of earth culture. The results showed that P. acinosa could transport Mn in soil to its aerial part. The Mn concentration in its leaves was the maximum, its average value was 17 043 mg/kg DW, and much greater than the average value of Mn concentration in its stems and roots separately. The average enrichment capacity of single plant reached the highest value when the concentration was 500 mg/kg DW. One Phyloalcca acinosa could enriched 13 mg Mn averagely. It was determinated that its best harvest time was 60 d in the dynamic experiment, the foot end’s biomass of P. acinosa which was reaped in different time had unconspicuous diversity(P>0.05), while the aerial part had a bigger diversity. Sequential harvest wouldn’t change the biological concentration ability of P. acinosa to Mn. These results indicated that P. acinosa had a strong accumulation ability to manganese, and it was a kind of excellent species to repair Mn-contaminated soil. This was significant for the treatment of heavy metal pollution of soil and the improvement of database in the field of phytoremediation.

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备注/Memo

备注/Memo:
收稿日期: 2013-08-03修回日期: 2013-10-11
基金项目: 国家自然科学基金(41001186); 广西自然科学基金(2011GXNSFF018003,2013GXNSFBA019210)。
作者简介: 赵盈丽(1986-),女,黑龙江齐齐哈尔市人,硕士,研究方向为重金属污染修复,(E-mail)mei_li_zhao@126.com。 *通讯作者: 游少鸿,硕士,副教授,研究方向为重金属污染修复,(E-mail)646761963@qq.c
更新日期/Last Update: 2014-05-25