低性下降流抑制了微生物酸盐矿化和硫氧化,从而抑制了沉积物释放
Yue Qu1, Jinxi Song1, Yongqing Long1
1Xi'an Key Laboratory of Environmental Simulation and Ecological Health in the Yellow River Basin, College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, China; Yellow River Institute of Shaanxi Province, Northwest University, Xi'an 710127, China.
Journal of environmental management
|December 5, 2025
概括
低温的水交换显著影响了河流的. 高降流抑制可溶和微生物基因表达,影响营养循环和河流健康.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 微生物学 微生物学
背景情况:
- 河流低温区的物种化对于营养循环和生态健康至关重要.
- 在hyporheic交换水力动力学下微生物转化的机制尚不清楚.
研究的目的:
- 为了研究低性水交换对微生物介导的物种变化的影响和机制.
- 为了建立hyporheic交换,基因表达和转化之间的关系.
主要方法:
- 量化低性水交换流量.量化低性水交换流量.
- 分析的可溶性反应含量.
- 测量了矿化基因phoD. phoD. 的表达.
- 研究了硫氧化和还原环境的作用.
主要成果:
- 低浮性水交换流量在350.1至850.4mm/d之间,主要是下降的流量.
- 高下降流抑制可溶性反应和phoD基因表达.
- 硫氧化促进了矿化,而表面减少则抑制了沉积物释放.
结论:
- 建立了一条连接低交换,基因表达和物种变化的途径.
- 已经证明,下降的流量通过影响微生物活动和硫-联合来抑制的转化.
- 提供了对低性循环的水力动力学调节的新见解.
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