Ecological effects of biochar in heavy metal-contaminated soils from multidimensional perspective: Using meta-analysis

被引：1

作者：

Ren, Jiayu ^{[1
,2
]}

Ren, Xinyue ^{[3
,4
]}

Deng, Zhenkun ^{[1
,2
]}

Zhang, Haonan ^{[1
,2
]}

Wang, Jing ^{[1
,2
]}

Zhang, Chun ^{[1
,2
]}

Lu, Feiyu ^{[1
,2
]}

Shi, Jiyan ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Coll Environm & Resource Sci, Dept Environm Engn, Hangzhou 310058, Peoples R China

[2] Zhejiang Univ, Coll Environm & Resource Sci, MOE Key Lab Environm Remediat & Ecol Hlth, Hangzhou 310058, Peoples R China

[3] Chinese Acad Sci, Inst Urban Environm, State Key Lab Ecol Secur Reg & Cities, 1799 Jimei Rd, Xiamen 361021, Peoples R China

[4] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2025年 / 432卷

关键词：

Microbial community; Core microbiome; Microbial network; Soil function; Soil health; AMENDMENT; BIOAVAILABILITY; NITROGEN;

D O I：

10.1016/j.biortech.2025.132695

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The application of biochar in the remediation of heavy metal-contaminated soil shows great potential, but its comprehensive impacts on metal dynamics and the soil ecosystem have not been quantified. This study conducted a meta-analysis of 496 observations from 41 studies. The results indicated that biochar can significantly decrease the bioavailability of cationic metals, but has limited effect on anionic heavy metals. After application, soil nutrient content and enzyme activity significantly increased. Microbial network analysis revealed enhanced interactions between species, and the reconstruction of the core microbial community indicated a shift in microbial survival strategies from resisting heavy metal stress to nutrient cycling and plant symbiosis. FAPROTAX analysis showed that microbial communities related to nitrogen and sulfur cycles were significantly stimulated. This study explores the role of biochar in restoring soil multifunctionality while addressing metal pollution issues from multiple perspectives, offering key insights for developing targeted soil remediation strategies.

引用

页数：9

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