Author(s)

Yong Zhou ¹, Mengting Huang ², Zuhong Zheng ¹, Yu Peng ², Changchun Li ¹

Affiliation(s)

¹ Hubei Key Laboratory of Resource Utilization and Quality Control of Characteristic Crops, College of Life Sciences and Technology, Hubei Engineering University, Xiaogan, 432000, Hubei, China
² School of Resources and Environmental Science, Hubei University, Wuhan, 430062, Hubei, China

Corresponding Author

Yong Zhou

ABSTRACT

With the increasing prominence of heavy metal pollution in soil, the high reactivity and toxicity of copper ions pose a threat to ecosystems and biological health. Existing copper remediation strategies largely rely on physical adsorption or chemical fixation, making it difficult to achieve dynamic regulation of copper in the soil-biological system, and systematic research on the absorption and toxicity buffering mechanisms of copper in organisms is lacking. Therefore, this paper constructs an earthworm-microbe synergistic system, combining soil fractionation extraction and biological copper determination methods to explore the speciation, translocation, and biological detoxification mechanisms of copper ions. In the experiment, through earthworm feeding and microbial fixation, copper was transformed from exchangeable to organically bound and residual states. The results reveal that the synergistic effect between earthworms and microorganisms can achieve speciation regulation and toxicity buffering of copper at both the microscopic and ecological scales, providing a feasible technical approach for soil heavy metal risk management and ecological restoration.

KEYWORDS

Copper Ion Speciation Regulation; Biological Detoxification Mechanism; Earthworm-Microorganism Synergy; Graded Chemical Extraction; Bioaccumulation Analysis

CITE THIS PAPER

Yong Zhou, Mengting Huang, Zuhong Zheng, Yu Peng, Changchun Li. Speciation Regulation and Biological Detoxification Mechanism of Copper Ions under the Synergistic Effect of Earthworms and Microorganisms. Agricultural & Forestry Economics and Management (2026). Vol. 9, No. 1, 27-36. DOI: http://dx.doi.org/10.23977/agrfem.2026.090104.

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