核心微生物社区组合驱动潮流中的温室气体减排,修建湿地处理污染的地表水处理污染地表水
Ao Xu1, Zhenkun Liu1, Dawen Gao1
1Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China; Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China.
Journal of environmental management
|February 10, 2026
概括
在潮流构造湿地 (TFCW) 中优化洪水和排水周期可以增强微生物群落,以更好地去除污染物和减轻温室气体 (GHG). 一个20小时/4小时的模式实现了90%的去除和减少温室气体排放.
科学领域:
- 环境微生物学 环境微生物学
- 湿地生态系统 湿地生态系统
- 生物地质化学循环的过程
背景情况:
- 了解潮流建造湿地 (TFCW) 中的微生物组合对于优化污染物清除和温室气体 (GHG) 缓解至关重要.
- 目前的知识差距阻碍了这些系统中有效的微生物组指导.
研究的目的:
- 调查不同洪水和排水 (F/D) 持续时间对TFCW中去除,温室气体减缓和微生物代谢机制的影响.
- 为了确定一个最佳的F/D制度来处理污染的表面水.
主要方法:
- 已建立的TFCW系统具有不同的F/D持续时间 (22h/2h, 21h/3h, 20h/4h, 19h/5h).
- 监控了去除效率和温室气体排放 (CO2,N2O,CH4) 的监控.
- 分析了微生物社区结构和代谢途径.
主要成果:
- 20小时/4小时的F/D模式显著重新配置了核心微生物群,实现了90%的总去除和107毫克CO2-eq/m2/h的全球变暖潜力.
- 这种制度增强了息地异质性,促进了稳定的微生物共同存在网络,并丰富了关键类型 (例如,Nitrospira,Thauera,Candidatus Brocadia).
- 优化的微生物合作抑制了氧化的产生,并促进了甲的氧化.
结论:
- 微生物群落通过重组相互作用,保持生态系统的功能来适应液压系统.
- 适度缩短的洪水期间 (20h/4h) 是有效的综合优化去除和温室气体控制在TFCW.
- 这些发现为设计和管理用于环境修复的建筑湿地提供了指导.
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