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多环芳污染压力影响土壤酶活性和微生物群落

Yuancheng Wang^1,2, Donglei Wu², Junxiang Liu³

¹Zhejiang Key Laboratory of Ecological Environmental Damage Control and Value Transformation, Ecological and Environmental Science and Research Institute of Zhejiang Province, Hangzhou 310007, China.

|February 27, 2026

概括

多环芳 (PAHs) 通过抑制微生物活动和改变微生物群落结构来破坏土壤. 酸污染限制了细菌和真菌的生存,对土壤质量产生负面影响.

科学领域:

环境科学环境科学
土壤微生物学土壤微生物学
生态毒理学生态毒理学

背景情况:

多环芳 (PAH) 是普遍存在的有机污染物,具有有害的环境影响.
土壤微生物群落对生态系统的健康和功能至关重要,影响营养循环和土壤质量.
了解PAHs对土壤微生物生态系统的影响对于评估环境风险和制定补救策略至关重要.

研究的目的:

调查多环芳 (PAH) 污染对土壤酶活性和微生物群落结构的影响.
评估微生物生物质,社区组成和PAH压力下的组装过程的变化.
为了确定受PAH污染影响的特定微生物种群和代谢功能.

主要方法:

在PAH污染90天后,分析了土壤样本.
测量了酶活性 (脱酶,催化酶,蛋白酶,尿酶).
微生物群落结构和组合被评估使用16S和ITS安普利康序列,Beta最接近的种群指数和共发生网络分析.

主要成果:

PAH压力显著抑制了土壤微生物活动,包括尿素酶,催化酶和蛋白酶.
细菌和真菌生物量减少,抑制了参与碳和循环的类型.
丰富了降解PAH的微生物 (例如,伪,菌根菌),同时减少了利基范围和微生物多样性.

结论:

酸污染对土壤微生物群落产生不利影响,减少了酶活性和生物量.
压力PAH改变微生物社区结构,有利于PAH降解剂,减少功能多样性.
研究结果表明,PAH污染严重影响土壤质量,通过限制微生物的生存和改变生态过程.

关键词:

子[a]二烯是一种二烯.南烯 (Phenanthrene) 是一种存在于人体中的物质.皮勒尼斯金字塔地区的金字塔微生物社区结构的微生物社区结构.微生物的功能.气循环是气循环的重要组成部分.

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