|本期目录/Table of Contents|

[1]吕华.生物表面活性剂对芥菜重金属镉和铅的修复效果[J].江苏农业科学,2016,44(11):430-434.
 Lü Hua.Effects of surfactants on phytoremediation of cadmium and plumbum on Brassica juncea[J].Jiangsu Agricultural Sciences,2016,44(11):430-434.
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生物表面活性剂对芥菜重金属镉和铅的修复效果(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年11期
页码:
430-434
栏目:
资源与环境
出版日期:
2016-11-25

文章信息/Info

Title:
Effects of surfactants on phytoremediation of cadmium and plumbum on Brassica juncea
作者:
吕华
泰州学院医药与化学化工学院,江苏泰州 225300
Author(s):
Lü Hua
关键词:
表面活性剂芥菜重金属CdPb植物修复
Keywords:
-
分类号:
X53;X171.4
DOI:
-
文献标志码:
A
摘要:
采用盆栽试验研究不同浓度生物表面活性剂对芥菜(Brassica juncea)重金属镉(Cd)和铅(Pb)修复效果。结果表明:表面活性剂均显著提高了土壤重金属Cd和Pb的解吸率,而对于不同浓度的表面活性剂,其对重金属的解吸率呈现不同的效果。低浓度的表面活性剂对芥菜的生长表现出促进作用,高浓度的表面活性剂对芥菜的生长有轻微的抑制作用,4~6 g/L可能是其临界值,芥菜地上部生物量反应较为敏感,说明芥菜能够发挥其地上部生物量大的优势,对重金属具有较强的抗耐性。芥菜地上部、地下部和籽实Cd和Pb含量均随着表面活性剂浓度的增加呈先增加后降低趋势,在芥菜体内分布均表现为根部>地上部>籽实;而土壤Cd和Pb含量随着表面活性剂浓度的增加呈先降低后增加趋势,均显著低于对照(P<0.05),说明表面活性剂促进了芥菜各器官对于土壤重金属Cd和Pb的吸收。添加表面活性剂后,芥菜对土壤Cd和Pb的吸收能力较强,富集系数和位移系数均高于对照,相比可知,芥菜对Pb的富集效应高于Cd。相关性分析表明,芥菜各部分器官之间Cd和Pb含量均呈显著的线性相关,这表明在表面活性剂处理下芥菜不同器官重金属Cd、Pb含量具有一定的相关性,各个器官之间具备统一性。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2016-04-06
作者简介:吕华(1982—),女,江苏泰兴人,硕士,讲师,研究方向为环境污染治理。E-mail:LVhua82@126.com。
更新日期/Last Update: 2016-11-25