地下水流动模式通过影响地下微生物社区聚集过程来塑造的功能特征
Helin Wang1, Ping Li2, Xiaohan Liu2
1State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, PR China.
The Science of the total environment
|July 28, 2024
概括
地下水流塑造了循环的微生物群落. 沿着流路的环境变化改变了微生物组合,将去除从化-脱化转变为部分化-anammox.
科学领域:
- 环境微生物学 环境微生物学
- 地质化学 地质化学
- 水文地质学 水文地质学
背景情况:
- 地下水中的 (N) 循环是复杂的,受到生物和环境因素的影响.
- 了解微生物群落组合及其在不同水文地质条件下对N循环的影响至关重要,但有限.
- 地下水流路径创造了独特的环境,影响微生物过程.
研究的目的:
- 研究沿地下水流道的循环微生物群落的聚集模式.
- 确定水文地质条件和环境异质性如何影响微生物群落结构和功能.
- 为了阐明,根据地下水流动的动态,去除途径的变化.
主要方法:
- 分析沿地下水流路的N循环微生物社区聚集模式.
- 评估环境异质性和水文阶段.
- 微生物社区组装与环境参数的相关性,如溶解氧 (DO).
主要成果:
- 环境异质性在地下水流路线上增加,与明显的微生物社区聚集模式相关.
- 移除的途径从充电区的"化-脱"转移到排放区的"部分化-anammox".
- 亚化微生物受到异质选择和DO度的影响,而anammox细菌群体则表现出随机组合.
结论:
- 地下水流程是N循环中微生物社区聚集模式的关键决定因素.
- 越来越多的环境异质性促进了决定性的聚集和更高的社区营业额.
- 这项研究提供了对过渡和微生物对地下水系统环境变化的反应的见解.
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