在高炉渣污染土壤中,与V和Cr相关的微生物多样性模式与V和Cr相关
Xin Cheng1, Shanshan Zhao2, Lan Li2
1College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu 610059, China; State Key Laboratory of Networking and Switching Technology (Beijing University of Posts and Telecommunications), Beijing 100876, China.
The Science of the total environment
|May 30, 2025
概括
土壤细菌群体在高炉渣附近表现出明显的垂直变异,受到 (V) 和 (Cr) 等有毒元素的影响. 这些元素和物理化学因素塑造了微生物的多样性和结构.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 土壤科学 土壤科学
背景情况:
- 高炉渣 (BFS) 场所可以将有毒元素释放到周围的土壤中.
- 了解土壤微生物社区对污染的反应对于环境管理至关重要.
- 垂直的土壤形状通常在物理化学性质和微生物组成上表现出异质性.
研究的目的:
- 研究土壤物理化学性质,有毒元素和细菌群落的垂直变化.
- 探索恶劣的环境条件,包括有毒元素对细菌群落的影响.
- 确定塑造受污染土壤中微生物社区结构和代谢网络的关键因素.
主要方法:
- 在BFS库存地点,系统地采集纵向地形 (0-80厘米) 的土壤样本.
- 物理化学性质的分析,包括有毒元素度 (V,Cr,Mn,Pb,Zn).
- 使用测序和功能注释 (PICRUSt2,FAPROTAX) 进行细菌社区概况.
主要成果:
- 在地表 (0-20厘米) 和地下 (20-80厘米) 之间观察到不同的细菌群体组成.
- 细菌的多样性与Mn,V,Pb,Zn和V{V}正相关,与含水量 (MC) 有负相关.
- 有机碳氧化被确定为一种初级能源获取策略;OM,MC,Mn,V,V和Fe是塑造微生物结构的关键因素.
结论:
- 土壤物理化学特性和有毒元素污染的垂直变化显著影响细菌社区结构和多样性.
- 微量金属,特别是V和Cr,是BFS受影响土壤中微生物代谢网络调节的核心因素.
- 该研究增强了对微生物社区异质性的理解,以应对特定的土壤污染物.
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