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聚乙烯微塑料对微生物社区聚集和不同质地土壤中碳-转化潜力的机制

Zijie Yu¹, Jin Wang², Shu Wang¹

¹School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, Anhui 230009, China.

Environmental research

|September 26, 2025

概括

微塑料 (MPs) 显著改变土壤微生物群落,影响碳和循环在土壤结构上有所不同. 聚乙烯MP增强了泥土中的微生物丰富性,促进了碳捕集和转化.

科学领域:

环境科学环境科学
土壤科学土壤科学
微生物学微生物学

背景情况:

微塑料 (MP) 污染对土壤健康和生态系统稳定构成全球威胁.
了解MPs对土壤微生物群落的影响对于预测生态系统功能至关重要.
聚乙烯 (PE) 是一种常见的微塑料污染物,对土壤生物地质化学有很大程度上未知的影响.

研究的目的:

研究聚乙烯微塑料 (PE MPs) 对土壤微生物多样性和功能的影响.
分析PE MPs如何影响不同质地土壤中的碳和循环.
评估MP对微生物网络连接和生态平衡的影响.

主要方法:

用16S rRNA基因扩增子的高通量测序来分析土壤微生物群落.
分析了来自14个地区的土壤样本,其中有三个不同的纹理 (沙子,粘土,粘土).
进行微生物网络分析以评估功能连接.

主要成果:

PE MPs 降低了沙土和粘土土壤中的微生物丰富度,但在粘土土壤中显著增加了 (增长了62.34%).
与沙子 (28,286) 和粘土 (37,044) 相比,粘土塑料土壤显示出更高的微生物网络连接性 (69,789个边缘).
在受塑料影响的土壤中,随着土壤颗粒大小的减少,碳捕集和转化增加.

结论:

微塑料根据土壤质地对土壤微生物群落和功能产生不同的影响.
聚乙烯MP可增强微生物活动和营养循环在某些类型的土壤,特别是土壤.
结果为PM污染管理和土壤生态恢复策略提供了洞察力.

关键词:

碳捕获能力的碳捕获能力微生物网络是微生物网络.转化的过程中的.聚乙烯微塑料的聚乙烯微塑料.土壤质地结构土壤质地结构

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