废水排放的强度推动了沿海微生物社区的聚集,污染历史决定了它们的抵抗力
Jie Wei1, Zhiguo Su2, Yuhan Zheng1
1College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.
Journal of environmental management
|September 10, 2025
概括
废水的强度对沿海微生物群落产生重大影响,减少了它们的多样性和稳定性. 具有先前暴露 (SY) 的沉积物比没有 (HB) 的沉积物更具抗污染能力.
科学领域:
- 海洋微生物学 海洋微生物学
- 环境科学环境科学
- 生态系统动态生态系统动态
背景情况:
- 沿海微生物群落对于生态系统的稳定性和生物地化学循环至关重要.
- 废水废水排放可能会改变微生物群落并影响生态系统功能.
- 关于废水的类型和强度如何影响微生物社区聚集的知识缺口存在.
研究的目的:
- 分析不同类型 (家庭,工业) 和强度 (0%,50%,100%) 的废水对沿海微生物群落的影响.
- 为了比较从有 (SY) 和没有 (HB) 废水排放历史的沉积物中微生物群落的反应.
主要方法:
- 使用杭州湾 (SY和HB) 的沿海沉积物构建微观世界.
- 沉积物暴露于不同类型和强度的废水中.
- 分析微生物物种多样性,社区组成和组装机制.
主要成果:
- 废水强度对微生物群落的影响比废水类型更大.
- 废水强度的增加导致物种和功能多样性的显著减少.
- HB微生物群落从随机转向确定性组合,污染增加,稳定性和复杂性降低.
- SY微生物群体表现出更大的稳定性和对废水冲击的抵抗力,随着随机过程始终占主导地位.
结论:
- 具有废水暴露史的沿海沉积物微生物群落表现出对污染的增强弹性.
- 废水的强度是推动微生物社区结构和功能变化的关键因素.
- 调查结果提供了对人类对沿海环境的影响的见解,有助于环境评估和污染控制战略.
相关概念视频
Ecological Disturbance
20.7K
An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
20.7K
Environmental Applications of Microorganisms
995
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
995
Bioremediation
22.1K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
22.1K
Primary Production
25.1K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
25.1K


