Spatial Variation in Microbial Community in Response to As and Pb Contamination in Paddy Soils Near a Pb-Zn Mining Site

文献类型： 外文期刊

第一作者： Zou, Lina

作者： Zou, Lina;Dai, Yuxia;Tang, Xianjin;Shi, Jiyan;Xu, Jianming;Lu, Yanhong;Nie, Jun;Liao, Yulin;Khan, Muhammad Imran;Gustave, Williamson

作者机构：

关键词： Pb-Zn mining site; arsenic; lead; microbial community; paddy soil

期刊名称：FRONTIERS IN ENVIRONMENTAL SCIENCE （ 影响因子：2.749； ）

ISSN：

年卷期： 2021 年 9 卷

页码：

收录情况： SCI

摘要： Mining activity is a growing environmental concern as it contributes to heavy metals (HMs) pollution in agricultural soils. Microbial communities play an important role in the biogeochemical cycling of HMs and have the potential to be used as bioindicators. Arsenic (As) and lead (Pb) are the most hazardous HMs and are mainly originated from mining activities. However, spatial variation in microbial community in response to As and Pb contamination in paddy soils remains overlooked. In this study, the biological and chemical properties of sixteen soil samples from four sites (N01, N02, N03, and N04) near a Pb-Zn mining site at different As and Pb levels were examined. The results showed that soil pH, total As and Pb, bioavailable As and Pb, nitrate-nitrogen (NO3--N) and ammonianitrogen (NH4+-N) were the most important factors in shaping the bacterial community structure. In addition, significant correlations between various bacterial genera and As and Pb concentrations were observed, indicating their potential roles in As and Pb biogeochemical cycling. These findings provide insights into the variation of paddy soil bacterial community in soils co-contaminated with different levels of As and Pb.

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