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水力动力学模式调节固和缩模式在坦加尼加湖

Benedikt Ehrenfels^1,2, Kathrin B L Baumann^1,2, Robert Niederdorfer¹

¹Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department Surface Waters - Research and Management, Kastanienbaum, Switzerland.

Nature communications

|October 18, 2023

概括

区域水力动力学显著影响水生生态系统中的固定. 这项研究显示,在分层条件下,固化的程度是上井的五倍,而上井是由不同的二氧化菌群体驱动的.

科学领域:

水生生态学水生生态学
生物地质化学生物地质化学
临界技术临界技术

背景情况:

固化对于水生预算至关重要.
已知区域性水力动力学会影响固化.
连接水力动力学和固定的基于现场的机制仍然不清楚.

研究的目的:

调查坦加尼加湖固化的地理分布.
了解水力动力学和固定的物理-生物合.
为了区分分层和上游在固中的作用.

主要方法:

在坦加尼加湖对固速率的实地调查.
在分层和上游水力动力学制度下对固的分析.
在不同的条件下,对不同种类的虫群体的特征.

主要成果:

与上游条件相比,在分层条件下,固率是上游条件的五倍.
由于有限的和强光,分层条件有利于形成开花的光自otrophic diazotrophs.
上游条件支持适应动态营养环境的异构型原体.

结论:

水力动力学模式 (分层与混合) 在水生系统中显著控制固速率和固模式.
不同的二氧体群落 (光体与异体) 与不同的水力动力学条件有关.
了解这些物理生物合对于准确的水生预算至关重要.

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