Wan Tian, He Meng-Xia, Ren Jie-Hui, Yan Xing-Xing, Cheng Wen
State Key Laboratory of Eco-hydraulic in Northwest Arid Region, Institute of Water Resources and hydro-electric Engineering, Xi'an University of Technology, Xi'an 710048, China.
Huan Jing Ke Xue. 2019 Aug 8;40(8):3588-3595. doi: 10.13227/j.hjkx.201810072.
The diversity of bacterial communities and their metabolic function in the waters of the Weihe River Basin are of great significance for water pollution remediation, ecological restoration, and water quality assessment. Illumina MiSeq high-throughput sequencing technology was applied to study the bacterial community distribution characteristics after the comprehensive treatment of the Shaanxi part of the Weihe River Basin. Furthermore, the correlation between the bacterial communities and environmental factors was analyzed by redundancy analysis (RDA), and the PICRUSt method was adopted to evaluate the ecological function of the bacterial communities. The results showed that Proteobacteria, Actinobacteria, Cyanobacteria, and Bacteroidetes were the main bacterial communities in the water, accounting for 85% of the total microbial community. Additionally, these bacteria showed a significant positive correlation (=0.02, <0.05) with the TP, NO-N, NO-N, and TN. The bacteria community richness of water samples collected in Zaohe River was the lowest of all samples, while which in the downstream of the junction of Bahe river and Weihe river was the highest. In addition, water in the Weihe River Basin had great impact on the endocrine systems of aquatic organisms, and also had a possibility of infectious diseases for humans. Our research provides a theoretical basis for the safe and sustainable development of the water environment in the Weihe River Basin.
渭河盆地水体中细菌群落的多样性及其代谢功能对于水污染治理、生态恢复和水质评估具有重要意义。运用Illumina MiSeq高通量测序技术研究了渭河盆地陕西段综合整治后的细菌群落分布特征。此外，通过冗余分析（RDA）分析了细菌群落与环境因素之间的相关性，并采用PICRUSt方法评估了细菌群落的生态功能。结果表明，变形菌门、放线菌门、蓝细菌门和拟杆菌门是水体中的主要细菌群落，占微生物群落总数的85%。此外，这些细菌与总磷、硝态氮、亚硝态氮和总氮呈显著正相关（=0.02，<0.05）。皂河采集的水样中细菌群落丰富度在所有样本中最低，而在灞河与渭河交汇处下游的水样中细菌群落丰富度最高。此外，渭河盆地的水体对水生生物的内分泌系统有很大影响，对人类也有传染病发生的可能性。我们的研究为渭河盆地水环境的安全与可持续发展提供了理论依据。
