安徽农业科学2018，Vol.46Issue(14)：78-81,160,5.
水分调控下4种水生植物对重金属的吸附与富集作用
Adsorption and Enrichment Effect of Heavy Metals by Four Aquatic Plants under Water Regulation
方飞 1浦晨霞 1武帅 1周丽佳 1郑晓情 1费禹凡 1屠旖旎1
作者信息
- 1. 浙江农林大学环境与资源学院,浙江杭州311300
- 折叠
摘要
Abstract
[Objective]To study the adsorption and enrichment of heavy metals in soil by aquatic plants.[Method]Four wetland plants,Canna indica,Iris wilsonii,Cyperus alternifolius,Thalia dealbata,were selected for pot experiment.The enrichment characteristics of four heavy metals, such as Cu,Zn,Pb and Cd in soil,were compared.The enrichment and migration of heavy metals in four aquatic plants were analyzed.The dy-namic distribution of heavy metals in the aerial parts and underground parts of four aquatic plants was studied,and its comprehensive removal of heavy metals in the soil was evaluated.[Result]Dry and wet alternation not only reduced the plant's transfer coefficient but also changed the metal's ability to enrich.Dry and wet alternation promoted the enrichment of four heavy metals,Cu,Zn,Pb and Cd,and inhibited the enrichment of four heavy metals by Canna indica,Iris wilsonii,Thalia dealbata;The accumulation of Cyperus alternifolius for four heavy metals was inhibited by dry and wet alternation.The migration coefficient of four aquatic plants to the heavy metals in the flooded treatment was significantly higher than that in the dry and wet alternating treatment.[Conclusion]Submerged plants were beneficial to the remediation of Cu,Zn,Pb and Cd con-taminated soil for Canna indica,Iris wilsonii and Thalia dealbata.Dry and wet alternate planting and flooding were beneficial to the repair for Cyperus alternifolius.关键词
干湿交替/水生植物/富集系数Key words
Dry and wet alternation/Aquatic plants/Enrichment coefficient分类
资源环境引用本文复制引用
方飞,浦晨霞,武帅,周丽佳,郑晓情,费禹凡,屠旖旎..水分调控下4种水生植物对重金属的吸附与富集作用[J].安徽农业科学,2018,46(14):78-81,160,5.
