生态补水对透区水生环境中的微生物脱的影响
Tianyao Jiang1, Tongxin Sun1, Zining Guo1
1School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China.
Journal of hazardous materials
|May 23, 2025
概括
生态补水通过促进地表和地下水中的微生物脱来改善水质. 这一策略增强了微生物的功能,有助于水资源管理和生态恢复.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 水资源管理 水资源管理
背景情况:
- 生态补水 (EWR) 对于解决水资源短缺至关重要,但需要了解其生态影响.
- 中国的南北水分流 (SNWD) 项目为EWR影响提供了一个独特的案例研究.
研究的目的:
- 调查因EWR而导致的地表水 (SW) 和地下水 (GW) 中微生物群落的变化.
- 评估功能性细菌的脱潜力及其对SNWD事件的反应.
- 确定影响脱和EWR细菌指标的因素.
主要方法:
- 在EWR事件之前,期间和之后,分析了SW和GW中的微生物社区继承.
- 量化了脱潜力和确定了关键的功能性细菌.
- 利用随机森林分析,精确定位对补水敏感的细菌指标.
主要成果:
- 和抗生素污染在补充后减少.
- 在EWR期间,SW和GW都显示出更大的脱能力.
- 在补充后,SW的脱能力进一步增加,而GW则恢复到基线.
- 总有机碳 (TOC) 和抗生素耐药性基因 (ARG) 显著影响了脱.
- 减少NO2-N是受影响最严重的脱化步骤,与微生物重组有关.
结论:
- EWR对SW和GW中的微生物脱能力产生了积极的影响.
- 在EWR之后,TOC和ARG是脱变化的关键驱动力.
- 微生物社区的重组和资源利用的改变是EWR后的关键.
- 识别细菌指标可以优化EWR战略,以有效管理水资源.
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