Bioaccumulation of four metals in the same genus mosses (Barbula Hedw.) and soil pollution assessment in an abandoned karst bauxite tailing area

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-01-01 DOI:10.55730/1300-008x.2752

Dengfu Wang, Qimei Wu, Zhao-hui Zhang

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引用次数: 1

Abstract

: Soil metal pollution is a concern in bauxite tailing areas. This study aimed to effectively screen plants with strong tolerance to metal contamination by analyzing the levels of metals in Barbula rigidula (Hedw.) Mild. (BR), Barbula indica (Hook.) Spreng. (BI), and Barbula vinealis Brid. (BV) and in soils. The contents of metals in mosses obtained from the bauxite tailing area followed the following order: Al > Fe > Zn > Cu. Furthermore, the levels of these metals were highest in BR, followed by BI and BV. However, concentrations of Al (12,220–87,080 mg/kg), Fe (8520–62,690 mg/kg), Cu (98.5–185.4 mg/kg), and Zn (208.2–352.6 mg/kg) in soils greatly exceeded the background values. Bioconcentration factor (BCF) analysis showed that the uptake ability of mosses was 0.44–1.51, with BR having the highest uptake ability, especially for Al and Fe. The metal contamination factor (CF) in soils was 2.04–15.12, indicating that the soil was exposed to moderate to severe contamination. Correlation analyses found that Al and Fe levels in BR and soil were significantly positively correlated ( r = 0.898). PCA also confirmed that BR is a bioindicator and phytoremediation material of polluted soil in an abandoned karst bauxite tailing.

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废弃岩溶铝土矿尾矿区四种金属在同一属苔藓中的生物累积及土壤污染评价

：土壤金属污染是铝土矿尾矿区的一个问题。本研究旨在通过分析硬叶Barbula rigidula（Hedw.）温和中的金属含量，有效筛选对金属污染具有较强耐受性的植物。（BR），Barbula indica（胡克）Spreng。（BI）和Barbula vinealis Brid。（BV）和土壤中。铝土矿尾矿区苔藓中金属含量依次为：Al>Fe>Zn>Cu。此外，BR中这些金属含量最高，其次是BI和BV。然而，土壤中Al（12220–87080 mg/kg）、Fe（8520–62690 mg/kg）、Cu（98.5–185.4 mg/kg）和Zn（208.2–352.6 mg/kg）的浓度大大超过了背景值。生物富集因子（BCF）分析表明，苔藓的吸收能力为0.44–1.51，其中BR的吸收能力最高，尤其是对Al和Fe的吸收能力。土壤中的金属污染因子（CF）为2.04–15.12，表明土壤受到中度至重度污染。相关分析表明，BR中Al和Fe含量与土壤呈显著正相关（r=0.898），主成分分析也证实BR是废弃岩溶铝土矿尾矿污染土壤的生物指示剂和植物修复材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.