Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.
Environ Sci Pollut Res Int. 2024 Mar;31(11):17511-17523. doi: 10.1007/s11356-024-32221-4. Epub 2024 Feb 12.
The leaching of ionic rare earth elements has caused serious environmental pollution and ecological damage. Microorganisms play a crucial role in soil ecosystems and are one of the most important components of these systems. However, there are fewer studies related to the changes that occur in microbial community structure and diversity before and after leaching in ionic rare earth mines. In this study, Illumina high-throughput sequencing was used to examine the diversity and composition of soil microorganisms on the summit, hillside, and foot valley surfaces of unleached and leached mines after in situ leaching. The results showed that microbial diversity and abundance in the surface soil of the unleached mine were higher than those in the leached mine, and leaching had a significant impact on the microbial community of mining soil. pH was the main factor affecting the microbial community. Proteobacteria, Actinobacteriota, and Chloroflexi were phyla that showed high abundance in the soil. Network analysis showed that microbial interactions can improve microbial adaptation and stability in harsh environments. PICRUSt2 predictions indicate functional changes and linkages in soil microbial communities.
离子型稀土元素的浸出导致了严重的环境污染和生态破坏。微生物在土壤生态系统中起着至关重要的作用，是这些系统中最重要的组成部分之一。然而，关于在离子型稀土矿浸出前后，微生物群落结构和多样性的变化，相关研究较少。本研究采用 Illumina 高通量测序技术，对原地浸矿前后未浸矿和浸矿山顶、山坡和山脚表面土壤中微生物的多样性和组成进行了研究。结果表明，未浸矿土壤表面的微生物多样性和丰度高于浸矿土壤，浸矿对矿区土壤微生物群落有显著影响。pH 是影响微生物群落的主要因素。变形菌门、放线菌门和绿弯菌门是土壤中丰度较高的门。网络分析表明，微生物相互作用可以提高微生物在恶劣环境中的适应和稳定性。PICRUSt2 预测表明土壤微生物群落的功能发生了变化并建立了联系。
