排水变化通过影响盐度而改变河口沉积物微生物组和去除过程
Liang Dong1, Zhihong Liu2, Zhuohang Xin2
1School of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China; Department of Environmental & Resource Engineering, Technical University of Denmark, Lyngby DK-2800, Denmark.
The Science of the total environment
|October 17, 2024
概括
流水变化显著影响河口气的去除. 低流量通过增加化细菌来增强合化-脱,但由于稀释化物而降低了整体脱率.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 地质化学 地质化学
背景情况:
- 河口环境因素是由排水变化形成的,影响循环.
- 河口中微生物介导的去除过程与排水变化有关的过程尚未完全理解.
研究的目的:
- 调查正常和低排水条件对河河口沉积物中脱和亚纳摩克斯的影响.
- 了解流量诱导的环境变化如何影响去除途径.
主要方法:
- 使用了连续流体实验.
- 使用了15种追踪技术.
- 用分子方法分析微生物群落和基因丰富度.
主要成果:
- 在这两种流水条件下,脱被确定为主要的去除的过程.
- 较低的排水量,盐度较高,增加了化细菌 (Nitrospina,Nitrosomonas,Nitrosomonadaceae) 的丰富性,促进了化-脱的结合.
- 在低流量下,海水入稀释化物,从而降低了脱率.
结论:
- 流水变化通过改变环境因素,微生物基因丰富度和社区结构,极大地影响河口中的生物去除.
- 了解这些动态对于管理河口气循环和水质至关重要.
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