生物炭对铜矿区污染土壤微生物活性及香根草富集铜、镉、铅的影响

艾艳梅; 汪洋; 李佳琪; 张辰阳; 徐晓阳; 冯今萍; 周际海

doi:10.13870/j.cnki.stbcxb.2022.06.049

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生物炭对铜矿区污染土壤微生物活性及香根草富集铜、镉、铅的影响

更新时间：2025-03-12

- 生物炭对铜矿区污染土壤微生物活性及香根草富集铜、镉、铅的影响
- Effects of Soil Microbial Activity and Cu, Cd, Pb Enrichment of
- 水土保持学报 2022年36卷第6期页码：402-409
- 作者机构：
  
  安徽师范大学生态与环境学院, 皖江流域退化生态系统的恢复与重建省部共建协同创新中心,安徽,芜湖,241002
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目(41661065);安徽省科技厅自然科学基金项目(2108085MD128);安徽高校协同创新项目(GXXT-2020-075)
- DOI：10.13870/j.cnki.stbcxb.2022.06.049
  中图分类号： X53
- 纸质出版：2022
- 稿件说明：
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艾艳梅, 汪洋, 李佳琪, 等. 生物炭对铜矿区污染土壤微生物活性及香根草富集铜、镉、铅的影响[J]. 水土保持学报, 2022,36(6):402-409.

AI Yanmei, WANG Yang, LI Jiaqi, et al. Effects of Soil Microbial Activity and Cu, Cd, Pb Enrichment of[J]. 2022, 36(6): 402-409.
艾艳梅, 汪洋, 李佳琪, 等. 生物炭对铜矿区污染土壤微生物活性及香根草富集铜、镉、铅的影响[J]. 水土保持学报, 2022,36(6):402-409. DOI： 10.13870/j.cnki.stbcxb.2022.06.049.

AI Yanmei, WANG Yang, LI Jiaqi, et al. Effects of Soil Microbial Activity and Cu, Cd, Pb Enrichment of[J]. 2022, 36(6): 402-409. DOI： 10.13870/j.cnki.stbcxb.2022.06.049.

摘要

矿区土壤易发生重金属污染

是土地资源利用和维护的一大难题。以铜矿区污染土壤为研究对象

按质量比添加0

10% (w/w)的生物炭

进行香根草室内盆栽试验。研究添加生物炭对土壤pH和微生物活性、香根草富集与转运重金属的影响

探明重金属形态含量与生物炭、微生物活性的相关性

旨在为生物炭与香根草联合修复矿区重金属污染土壤提供理论参考。结果表明:生物炭的添加能提高土壤pH

显著提高土壤FDA水解酶、蔗糖酶和脲酶活性

显著促进土壤基础呼吸

但对土壤微生物量碳无显著影响;生物炭的添加使香根草生物量显著增大

降低土壤Cu和Pb的有效态占比

Cd的变化与此相反;添加生物炭促进香根草对Cd和Pb的富集

降低香根草对Cu的富集

减少Cu、Cd和Pb在香根草体内的转运

因此香根草可作为Cu、Cd和Pb的稳定化植物。土壤蔗糖酶活性与香根草叶片Cu、Cd和Pb含量、有效态和残渣态Cu含量呈显著正相关

土壤基础呼吸与叶片Cu、Cd和Pb含量、有效态Cu、Pb含量呈显著负相关

而与有效态Cd含量呈显著正相关。总之

生物炭可减弱矿区土壤重金属对香根草生长的毒害作用

并促进香根草对重金属的富集

两者结合可改善铜矿区污染土壤的理化性质和微生物活性

有利于重金属污染土壤修复

改善土壤质量。

Abstract

Soil in mining areas are easily to be contaminated by heavy metals

which fact is a major challenge for land resource utilization and maintenance. In the present study

the contaminated soil in copper mining area was used as the research material

and 0

and 10% (w/w) biochar were added by weight ratio to carry out an indoor potted experiment for planting Vetiveria zizanioides. The effects of biochar on soil pH and microbial activity

and the enrichment and transport of heavy metals by Vetiveria zizanioides were investigated to find out the correlations between the contents of heavy metal species

biochar and microbial activity

aiming to provide a theoretical reference for the combined remediation of heavy metal-contaminated soil in mining areas by biochar and Vetiveria zizanioides. The results showed that the addition of biochar increased soil pH

significantly increased the activities of soil FDA hydrolase

sucrase and urease

and significantly promoted soil basal respiration

but had no significant effect on soil microbial biomass carbon. The addition of biochar significantly increased the biomass of Vetiveria zizanioides

decreased the available state of Cu and Pb

while the changes of Cd species was opposite. The addition of high doses of biochar attenuated the enrichment of Cu in Vetiveria zizanioides

while the addition of biochar promoted the enrichment of Cd and Pb and attenuated the transport of Cu

Cd and Pb in Vetiveria zizanioides. So Vetiveria zizanioides could be used as a stabilized plant for Cu

Cd and Pb. Soil sucrase activity was significantly positively correlated with the contents of Cu

Cd and Pb in leaves

soil available state Cu and residual state Cu; soil basal respiration was significantly negatively correlated with the contents of Cu

Cd and Pb in leaves

available state Cu and available state Pb

while significantly positively correlated with available state Cd. In conclusion

biochar can reduce the toxic effect of heavy metals on the growth of Vetiveria zizanioides in mining soil and promote the enrichment of heavy metals by Vetiveria zizanioides

and the combination of both can improve the physicochemical properties and microbial activity of contaminated soil in copper mining areas. These findings are conducive to the remediation of heavy metal-contaminated soil and the improvement of soil quality.

关键词

Keywords

references

方青,丁子微,孙庆业,等.客土改良铜尾矿对香根草生理特征及重金属吸收的影响[J].农业环境科学学报,2021,40(1):83-91.

Gravand F, Rahnavard A, Pour G M. Investigation of Vetiver Grass capability in phytoremediation of contaminated soils with heavy metals (Pb, Cd, Mn, and Ni)[J].Soil and Sediment Contamination: An International Journal,2021,30(2):163-186.

马文超, 刘媛, 孙晓灿, 等. 镉在土壤-香根草系统中的迁移及转化特征[J]. 生态学报, 2016, 36(11): 3411-3418.

李甜田,康禄华,李平,等.香根草在离子型稀土堆浸矿场的修复应用研究[J].中国稀土学报,2022,40(1):153-160.

Jia L, Wu W, Zhang J, et al. Insight into heavy metals (Cr and Pb) complexation by dissolved organic matters from biochar: Impact of zero-valentiron[J].Science of the Total Environment,2021,793:e148469.

刘杏认,张星,张晴雯,等.施用生物炭和秸秆还田对华北农田CO

、N

O排放的影响[J].生态学报,2017,37(20):6700-6711.

许云翔,何莉莉,刘玉学,等.施用生物炭6年后对稻田土壤酶活性及肥力的影响[J].应用生态学报,2019,30(4):1110-1118.

郭琴波,王小利,段建军,等.氮肥减量配施生物炭对稻田有机碳矿化及酶活性影响[J].水土保持学报,2021,35(5):369-374,383.

胡琛,贺云龙,黄金莲,等.生物炭和氮沉降对落叶松人工林土壤呼吸及其理化性质的影响[J].东北林业大学学报,2021,49(9):77-82.

徐伊莎,夏新,李欣,等.消解体系对土壤重金属测定的影响[J].环境工程,2019,37(5):66-69,154.

徐小逊.超富集植物豨莶 (

Siegesbeckia orientalis

L.)对镉的吸收和耐性机理研究[D].成都:四川农业大学,2018.

郑丹丹,吕尚,刘海龙,等.BCR连续提取法联合ICP-MS分析藏药白脉软膏及其矿物原料药中铅、镉、砷、汞、铜元素提取形态[J].药物分析杂志,2019,39(4):702-708.

武超,周顺江,王华利,等.生物炭和锌对土壤镉赋存形态及小麦镉积累的影响[J].环境科学研究,2022,35(1):202-210.

Cottes J, Saquet A, Palayret L, et al. Effects of soil redox potential (Eh) and pH on growth of sunflower and wheat[J].Archives of Agronomy and Soil Science,2020,66(4):473-487.

张新帅,张红宇,黄凯,等.石灰与生物炭对矿山废水污染农田土壤的改良效应[J].农业环境科学学报,2022,41(3):481-491.

刘洁,孙可,韩兰芳.生物炭对土壤重金属形态及生物有效性影响的研究进展[J].环境化学,2021,40(6):1643-1658.

张迪,李婷,方炫,等.钝化剂对土壤镉铅有效性和微生物群落多样性影响[J].农业环境科学学报,2019,38(12):2729-2737.

冯敬云,聂新星,刘波,等.镉污染农田原位钝化修复效果及其机理研究进展[J].农业资源与环境学报,2021,38(5):764-777.

Chen D, Wang X B, Wang X L, et al. The mechanism of cadmium sorption by sulphur-modified wheat straw biochar and its application cadmium-contaminated soil[J].Science of the Total Environment,2020,714: e136550.

Yin D X,Wang X, Peng B, et al. Effect of biochar and Fe-biochar on Cd and As mobility and transfer in soil-rice system[J].Chemosphere,2017,186:928-937.

Gong X M, Huang D L, Liu Y G, et al. Nanoscale zerovalent iron, carbon nanotubes and biochar facilitated the phytoremediation of cadmium contaminated sediments by changing cadmium fractions, sediments properties and bacterial community structure[J].Ecotoxicology and Environmental Safety,2021,208:e111510.

Melo L C A, Puga A P, Coscione A R, et al. Sorption and desorption of cadmium and zinc in two tropical soils amended with sugarcane-straw-derived biochar[J].Journal of Soils and Sediments,2016,16(1):226-234.

杨文浩,李佩,周碧青,等.生物炭缓解污染土壤中植物的重金属胁迫研究进展[J].福建农林大学学报(自然科学版),2019,48(6):695-705.

吴海霞,孙萍,卢爽,等.浒苔生物炭促进土壤Pb固定并缓解植物Pb毒性[J].中国环境科学,2020,40(8):3530-3538.

盛美群.不同种植年限香根草基质中重金属特性及微生物活性的研究[D].贵阳:贵州大学,2019.

Tian H X, Kong L, Megharaj M, et al. Contribution of attendant anions on cadmium toxicity to soil enzymes[J].Chemosphere,2017,187:19-26.

何秀峰,赵丰云,于坤,等.生物炭对葡萄幼苗根际土壤养分、酶活性及微生物多样性的影响[J].中国土壤与肥料,2020(6):19-26.

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