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地下水的空间和时间生物地化学变异性有助于在高海拔的阿尔卑斯山流域 (瑞士的Riale di Ronco) 内提供地下连接信息

Andrew S Acciardo¹, Moira Arnet¹, Nima Gholizadeh Doonechaly^1,2

¹ETH Department of Earth and Planetary Sciences, Zurich, Switzerland.

Frontiers in microbiology

|March 13, 2025

概括

研究人员建立了BedrettoLab深度生命观测站 (DELOS),以探索深层地下地下水生态系统. 他们确定了不同的微生物生态类型,并发现了深层地下水断层之间的令人惊的连接性,揭示了生态系统的弹性.

科学领域:

深层地表微生物学
水文地质学水文地质学
地质微生物学的生物.

背景情况:

深地地下生态系统仍然在很大程度上没有特征,这是由于进入的挑战.
鉴于它们在地球陆地下面的广大范围,了解这些环境至关重要.

研究的目的:

建立和利用BedrettoLab深度生命观测站 (DELOS) 来研究深层地下水的生物地质化学.
研究在阿尔卑斯山地下环境中的微生物群落的空间和时间多样性和连接性.

主要方法:

在高海拔的阿尔卑斯山流域建立了DELOS地下实验室.
从几十米到1.6公里的深度进行了地下水的空间和时间生物地质化学监测.
分析了微生物群体的组成和水化学参数.

主要成果:

确定了三种主要的地下水生态类型:浅水 (Leptospirillia),断层区域 (超小微生物) 和富含二碳酸盐的水 (Candidatus Kryptonia, Spirochaetota).
在附近的断层之间观察到地下水组成的显著异质性,其中一些与远处的地点相似性更大.
在一年内,微生物和水化基水组成的相对稳定性被证明,在地震事件后迅速恢复.

结论:

深层地下地下水生态系统表现出复杂的空间异质性和连接性.
德洛斯提供了一个独特的平台,以推进深层生命的研究.
地表微生物群落表现出弹性,并且可以在干扰后恢复基线条件.

关键词:

深度生命观测中心地下水地下水地下水微生物生态学微生物生态学地下微生物学的研究.地下实验室地下实验室

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