高天鹏,万子栋,付靖雯,王雪莹,常国华,陈映全,台喜生,李昌明

• 1:西安文理学院生物与环境工程学院
• 2:甘肃省矿区污染治理与生态修复工程研究中心
• 3:兰州城市学院地理与环境工程学院
• 4:西北师范大学地理与环境科学学院

摘要(Abstract)：

为了探究重金属污染对矿区原生植物根际细菌群落结构的影响,选取下四分作为原生态对照样地、废渣堆和尾矿坝作为试验样地,选取碱蓬和骆驼蓬作为研究植物,采用Illumina Miseq高通量测序技术分析2种植物根际与根周围土壤细菌群落结构.结果显示:2种植物根际和根周围土壤的主要优势菌门为变形菌门、厚壁菌门、放线菌门和酸杆菌门.尾矿坝细菌群落多样性和丰富度最高,下四分2种植物根际细菌群落多样性和丰富度均高于根周围, 3个样地骆驼蓬根际细菌群落丰富度均高于根周围.主成分分析和UPGMA聚类分析表明同种植物根际和根周围的细菌群落结果相似度较高. RDA分析和相关分析表明, Ni、综合污染指数、Cr、土壤含水量、pH、全氮和全磷是影响根际细菌群落结构的主要土壤因子.

关键词(KeyWords)： 干旱区;根际细菌群落;重金属污染;金川矿区

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(31860176,31460162);; 陕西省重点研究发展计划项目(2020ZDLSF06-06)

作者(Author): 高天鹏,万子栋,付靖雯,王雪莹,常国华,陈映全,台喜生,李昌明

DOI: 10.13885/j.issn.0455-2059.2020.04.009

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