湿地植物对煤矿老窑水污染土壤中重金属的富集能力研究  

Study on the accumulation ability of wetland plants to heavy metals in the soil polluted by acid mine drainage

作　　者：张国伟 张永波[1] 吴艾静 李佳敏 徐树媛[1] ZHANG Guowei;ZHANG Yongbo;WU Aijing;LI Jiamin;XU Shuyuan(College of Water Resources Science and Engineering,Taiyuan University of Technology,Taiyuan Shanxi 030024)

机构地区：[1]太原理工大学水利科学与工程学院,山西太原030024

出　　处：《环境污染与防治》2021年第10期1244-1248,共5页Environmental Pollution & Control

基　　金：国家重点研发计划项目(No.2018YFC0406403-4)。

摘　　要：选择水葱(Scirpus validus)、芦苇(Phragmites australis)、香蒲(Typha orientalis)和头状穗莎草(Cyperus glomeratus Linn.)4种湿地植物,设置不同浓度煤矿老窑水进行盆栽实验,探讨4种植物对煤矿老窑水污染土壤中重金属的富集能力。结果表明:4种植物对重金属Mn、Zn都有一定的富集和转移能力,但不同植物对不同重金属的富集转移效果不同,Mn的富集转移效果优于Zn,Mn更多存储于植物地上部分而Zn更多存储于植物根部。对煤矿老窑水污染的土壤,水葱的重金属富集转移效果优于其他3种植物。Four kinds of wetland plants,Scirpus validus,Phragmites australis,Typha orientalis and Cyperus glomeratus Linn.,were selected to set up pot experiments with different concentrations of acid mine drainage to explore the accumulation ability of four kinds of plants to heavy metals in the polluted soil.The results showed that the four kinds of plants had the ability to accumulate and transfer heavy metals Mn and Zn,but different plants had different accumulation and transfer effects on different heavy metals.The accumulation and transfer effect of Mn was better than that of Zn.Most of Mn was stored in the aboveground part of plants and Zn in the root of plants.For the soil polluted by acid mine drainage,the heavy metal accumulation and transfer ability of Scirpus validus was better than that of the other three kinds of plants.

关 键 词：湿地植物 煤矿老窑水 重金属 富集能力 

分 类 号：X173[环境科学与工程—环境科学] X53