Impact of sugarcane bagasse-derived biochar on heavy metal availability and microbial activity: A field study

Chemosphere
Chengrong NieHailong Wang

Abstract

In the current study, we conducted a field experiment using the test plant, Brassica chinesis L. (pak choi), to investigate the effect of sugarcane bagasse-derived biochar on the bioavailability of cadmium (Cd), copper (Cu) and lead (Pb), and the health of soil microbiota in a contaminated soil. Biochar application significantly (P < 0.05) increased pak choi yield. Bioavailability of heavy metals to plant shoots and roots decreased with increasing biochar application rates (at 0, 1.5, 2.25 and 3.0 t ha-1). Sequential extraction of the biochar-treated and -untreated soil revealed that exchangeable Cd reduced whereas organically-bound fraction increased with increasing biochar rate. The labile fractions of Cu and Pb decreased, but the residual fraction increased in biochar-treated soils compared to the control. Urease, catalase and invertase activities, and the populations of bacteria and actinomycetes were significantly enhanced, whereas fungi population declined in biochar-treated soils. This study highlights that sugarcane bagasse biochar has the potential to support the remediation of soils contaminated with heavy metals, and as such can improve the yield and quality of agricultural crops.

Citations

May 28, 2019·Environmental Science and Pollution Research International·Ibrahim MohamedFang Chen
Mar 29, 2020·International Journal of Environmental Research and Public Health·Amit KumarKrishna K Yadav
Nov 2, 2019·Environmental Geochemistry and Health·Shaopan XiaHailong Wang
Jul 16, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sheng ChengBo Yan
Nov 11, 2018·Environmental Science and Pollution Research International·Haijun SunYanfang Feng
Sep 3, 2020·Environmental Science and Pollution Research International·Tiexin YangHailong Wang
Feb 6, 2020·Environmental Science and Pollution Research International·Chunyan RenZengqiang Zhang
May 18, 2020·Environmental Science and Pollution Research International·Qiang SunHailong Wang
Nov 12, 2020·International Journal of Phytoremediation·Xiaogang LiGuangcai Chen
Nov 20, 2020·The Science of the Total Environment·Huanhuan WangGuoshun Liu
Sep 21, 2020·Bioresource Technology·Wei-Hao HuangChihpin Huang
Feb 15, 2021·The Science of the Total Environment·Zhihui YangWeichun Yang
Feb 19, 2021·Environmental Science and Pollution Research International·Sheetal ManoriAchlesh Daverey
Apr 10, 2019·The Science of the Total Environment·Jianhong LiHailong Wang
Apr 8, 2021·International Journal of Phytoremediation·Manhattan LebrunSylvain Bourgerie
Aug 25, 2020·Ecotoxicology and Environmental Safety·Haofei GongJianjun Huang
Sep 5, 2021·Environmental Management·Venâncio de Lima VelosoClístenes Williams Araújo do Nascimento

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