Vertical fate of Cd in soil under phytoremediation by Indian mustard and tall fescue

被引：3

作者：

Niu, Hong ^{[1
]}

Wu, Hang ^{[1
]}

Wei, Xiaoya ^{[1
]}

Chen, Ke ^{[1
]}

Pan, Zixuan ^{[1
]}

机构：

[1] South Cent Minzu Univ, Coll Resources & Environm Sci, Key Lab Resources Convers & Pollut Control, State Ethn Affairs Commiss, Wuhan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF PHYTOREMEDIATION | 2023年 / 25卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Cd-contaminated soils; phytoremediation; soil columns; vertical migration of Cd; PHYSIOLOGICAL-RESPONSES; CONTAMINATED SOIL; HEAVY-METALS; FESTUCA-ARUNDINACEA; PADDY SOILS; CADMIUM; WATER; REMEDIATION; SYSTEMS; GROWTH;

D O I：

10.1080/15226514.2022.2070124

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Soil columns were designed to investigate the vertical migration of Cd in Indian mustard (IM) and tall fescue (TF). The TF biomass was greater than the IM biomass, and the Cd content in IM was higher in the shoots but lower in the roots than that in TF. Both IM and TF released N and absorbed P and K during outdoor growth, differing from the results of the previous experiment in which plants were grown in greenhouses. TF was more absorbent and had less upward attraction than IM. The IM soil was more favorable for Cd precipitation than was the TF soil. Leaching remained the dominant effect, with only 2.28-3.40% and 2.65-3.90% of Cd absorbed by IM and TF, respectively. The present study on the vertical migration of Cd provides new insights into the phytoremediation mechanisms of IM and TF.

引用

页码：221 / 228

页数：8

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