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六氧化和聚乙烯微塑料对土壤细菌群落的影响

Zhineng Wu¹, Linhao Kang¹, Quanli Man¹

¹School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China.

The Science of the total environment

|October 12, 2023

概括

微塑料的hexabromocyclododecane (HBCD) 和聚乙烯 (PE) 随着时间的推移显著改变土壤细菌群落. 长期暴露会影响细菌的多样性,组成和功能,特别是影响特定的类和属.

科学领域:

环境科学环境科学
微生物学微生物学
生态毒理学生态毒理学

背景情况:

黑克萨布罗摩环丁 (HBCD) 和聚乙烯 (PE) 微塑料是广泛存在的环境污染物.
这些污染物对土壤细菌群体的影响尚不清楚.

研究的目的:

研究HBCD和PE单独和联合对土壤细菌群落的影响.
在4个月内分析细菌多样性,组成和功能的变化.

主要方法:

在不同度的HBCD和PE下,对农田土壤细菌群体的系统检查.
在暴露1个月和4个月后分析微生物多样性和社区结构.

主要成果:

无论是单独还是联合,HBCD和PE都影响了土壤细菌群落.
4个月后,PE和联合暴露显著影响了α多样性,而低HBCD度的影响最小.
细菌β多样性被所有暴露场景显著改变.
特定的类 (Nitrospirae,Elusimicrobia,Rokubacteria) 和属特别受到长期暴露的影响.
氨基酸代谢,碳水化合物代谢和膜运输是丰富的细菌功能.

结论:

HBCD和PE污染对土壤细菌群落产生重大影响,随着时间的推移,其影响会加剧.
了解这些影响对于制定控制土壤污染的战略至关重要.

关键词:

细菌社区的细菌社区赫克萨布罗姆环氧化物干聚乙烯微塑料的聚乙烯微塑料.土壤土壤土壤.

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