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Soil carbon cycling mediated by microplastics: Formation, mineralization, and sequestration
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This review examines how microplastic pollution affects soil organic carbon cycling, covering direct participation in carbon processes and indirect effects on soil physicochemical properties and microbial communities. The authors synthesize mechanisms by which microplastics influence organic carbon formation, mineralization, and sequestration in terrestrial ecosystems.
微塑料污染已成为全球生态系统最严重的威胁之一，其不仅对陆地和海洋生态系统、生物多样性和人体健康产生影响，还会通过影响土壤有机碳固定扰动全球气候。土壤中微塑料可以直接参与碳循环或间接影响理化性质和微生物群落来影响土壤有机碳周转过程。本文从微塑料影响土壤有机碳测定，以及微塑料介导的有机碳形成过程、矿化和稳定过程等方面，阐明了微塑料对土壤有机碳库的影响，并深入探讨了微塑料调控土壤有机碳循环的可能机制。未来需从微塑料源碳的精准识别、碳过程关键微生物作用机制、多因素影响下碳循环过程等方面开展进一步的研究工作。
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Microplastic effects on carbon cycling in terrestrial soil ecosystems: Storage, formation, mineralization, and microbial mechanisms
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Microplastics in soil contribute to organic carbon storage through degradation and leaching, but also disrupt carbon cycling by altering plant growth, litter decomposition, and microbial activity. The net effect on soil CO2 and CH4 emissions varies depending on how microplastics reshape microbial community structure and enzyme activity.
Microplastic effects on carbon cycling processes in soils
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Researchers reviewed how microplastics affect carbon cycling processes in soils, including their influence on microbial activity, plant growth, and litter decomposition. Since microplastics are themselves carbon-based materials, they can directly alter soil carbon stocks while also indirectly shifting microbial communities. The study calls for a major research effort to understand the widespread effects of microplastics on soil functioning and terrestrial ecosystem health.
Effects and mechanism of microplastics on organic carbon and nitrogen cycling in agricultural soil: A review
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This review summarizes how microplastic pollution in agricultural soils affects carbon and nitrogen cycling by altering soil properties, microbial communities, and enzymatic activity. Evidence indicates that microplastics can change organic matter degradation rates and nutrient cycling processes, with implications for soil health and agricultural productivity.
From carrier to reactor: How microplastic as a mobile source of DOM reshapes soil carbon cycling and microbial communities
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This review summarizes existing research on how microplastics in soil interact with dissolved organic matter through physical, chemical and microbial processes. It describes microplastics forming surface biofilms and complexes that affect carbon breakdown, contaminant transport, and the loss of natural soil carbon.
Microplastics-driven reconfiguration of organic carbon fractions in lake sediments: mineralization and stabilization dynamics of biodegradable polymers
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Microplastics in soil were found to alter the composition and distribution of organic carbon fractions, with implications for soil fertility and carbon sequestration. The study reveals that microplastic contamination can reshape the biogeochemical cycling of carbon in terrestrial ecosystems.
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