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评估回收处理废水对土壤质量,微生物群落和城市绿化灌中的功能

You Zhou¹, Lin Chang², Hui Sun³

¹The National Key Laboratory Water Disaster Prevention, College of Water Resources and Hydropower, Sichuan University, Chengdu, 610065, China; The National Key Laboratory Water Disaster Prevention, Nanjing Hydraulic Research Institute, Nanjing, 210029, China.

Journal of environmental management

|November 17, 2025

概括

处理废水 (TWW) 灌增加了土壤的营养,改变了城市绿地中的微生物群落. 然而,潜在的风险包括重金属积累和抗生素耐药性基因增加.

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:

淡水短缺需要可持续的灌替代方案,如处理废水 (TWW) 用于城市绿化.
对于TWW对城市土壤质量和微生物生态学的影响尚不清楚.
城市景观面临着关于水的再利用和土壤健康的独特挑战.

研究的目的:

评估不同类型的TWW对土壤特性,重金属积累,酶活性和微生物社区动态的影响.
调查TWW灌对Nandina domestica系统的短期 (三个月) 和中期 (五个月) 影响.
为可持续的城市灌提供TWW对生态风险和益处的见解.

主要方法:

在中国南京进行实地研究,使用普通南丁 (Nandina domestica Thunb.) 系统.系统.系统.
用三种TWW类型和一种TWW净化水混合物进行灌.
分析土壤特性,重金属,酶活性和微生物社区结构,使用元基因组学.

主要成果:

TWW灌显著增加了土壤的,和pH值,效果在三个月后更加明显.
观察到 (Cr) 和 (As) 的潜在积累;在三个月后,酶活动 (N-乙-葡萄糖胺酶,酸酶) 增加.
微生物社区的转变包括增加的Mucoromycota和减少的Ascomycota; 增加的微生物组装静态性被注意到.
TWW灌提高了氨基酸代谢和过氧体的基因,降低了芳香化合物降解基因,增加了抗生素耐药性基因 (ARGs).
检测到植物病原体属的丰富度增加,如阿斯伯吉勒斯和.

结论:

在短期内,TWW灌可以改善土壤营养含量,并改变城市绿地中的微生物社区结构.
与TWW相关的潜在生态风险包括重金属积累和抗生素耐药性基因和植物病原体的扩散.
谨慎的管理和监测对于在城市环境中可持续实施TWW灌至关重要.

关键词:

抗生素耐药性基因 (ARG) 是一种抗生素耐药性基因.这是一种重金属,重金属.转基因组学是指转基因组学.微生物社区的功能是微生物社区的功能.回收废水的回收废水土壤营养物质土壤营养物质

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