Amendment-driven soil health restoration through soil pH and microbial robustness in a Cd/Cu-combined acidic soil: A ten-year in-situ field experiment

Soil health arguably depends on biodiversity and has received wide attention in heavy-metal (HM) contaminated farmland remediation in recent years. However, long-term effects and mechanisms of soil amendment remain poorly understood with respect to soil microbal community. In this in-situ field stud...

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Bibliographic Details
Published in:Journal of hazardous materials 2024-03, Vol.465, p.133109, Article 133109
Main Authors: Cui, Jian, Zhou, Fengwu, Li, Jinfeng, Shen, Ziyao, Zhou, Jing, Yang, John, Jia, Zhongjun, Zhang, Zhen, Du, Fengfeng, Yao, Dongrui
Format: Article
Language:English
Subjects:
Cd/Cu pollution
Long-term effect
Microbial network
Soil amendments
Soil health
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Summary:Soil health arguably depends on biodiversity and has received wide attention in heavy-metal (HM) contaminated farmland remediation in recent years. However, long-term effects and mechanisms of soil amendment remain poorly understood with respect to soil microbal community. In this in-situ field study, four soil amendments (attapulgite-At, apatite-Ap, montmorillonite-M, lime-L) at three rates were applied once only for ten years in a cadmium (Cd)–copper (Cu) contaminated paddy soil deprecated for over five years. Results showed that after ten years and in compared with CK (no amendment), total Cd concentration and its risk in plot soils were not altered by amendments (p > 0.05), but total Cu concentration and its risk were significantly increased by both Ap and L, especially the former, rather than At and M (p 
ISSN:0304-3894
1873-3336
1873-3336
DOI:10.1016/j.jhazmat.2023.133109