盐度梯度取代了水力连接,在沿海水库-水库界面上塑造了细菌群体的组合和网络稳定性
Cuixia Zhang1,2,3,4, Haiming Li1,2,3,4, Mengdi Li1,2,4
1School of Ocean and Environment, Tianjin University of Science and Technology, Tianjin 300457, China.
Microorganisms
|July 30, 2025
概括
海水的入侵对沿海地下水中的微生物群落产生了重大影响,超过了水力连接. 盐度梯度驱动社区结构,增强细菌网络的复杂性,为资源管理提供了洞察力.
科学领域:
- 环境微生物学环境微生物学
- 沿海水文地质学
- 生物地质化学生物地质化学
背景情况:
- 沿海地区在地下水,水库和海水之间表现出复杂的相互作用.
- 液压连接与盐度梯度对水表-水库接口上的微生物群落的影响尚不清楚.
研究的目的:
- 为了调查细菌群体的组成,组装和网络模式在含水层-水库接口.
- 为了确定液压连接和海水驱动的盐度梯度的相对作用.
主要方法:
- 综合水化学分析和高通量16S rRNA基因测序.
- 检查了地下水 (水库内/水库外) 和水库水中的细菌群落.
- 分析了社区集会过程和共发生网络.
主要成果:
- 海水的入强烈影响了地下水的流出,产生了不同的化学配置和盐度驱动的过.
- 水力连接促进了地下水和水库水之间的微生物相似性.
- 地下水表现出更高的多样性; 科马诺纳达科,菌科和罗多细菌科表明海水入侵. 盐度和离子 (TDS,Na+,Cl-, Mg2+, K+) 是关键因素. 地下水细菌网络更复杂,更强大.
结论:
- 盐度梯度是构建沿海细菌群落和网络的主导因素,超过了水力连接.
- 结果提供了微生物对生物地化学过程的洞察力,并支持使用微生物指标进行沿海地下水监测.
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