Soil bacterial community composition and diversity respond to soil environment in the Ebinur Lake Wetland

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Soil bacterial community composition and diversity respond to soil environment in the Ebinur Lake Wetland Shuaibing He1 · Wenge Hu1   · Xitong Jin1 · Jing Han1 Received: 15 February 2020 / Revised: 19 October 2020 / Accepted: 1 November 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020

Abstract To understand the relationship between the community structure of bacteria and soil environment, the diversity and composition of soil bacterial communities were investigated, based on 16S rRNA gene clone library, in three different sampling sites (SP1, SP2 and SP3) in the Bortala and Jinghe River basins of Ebinur Lake Wetland. The results showed that the diversity of bacteria among plots was SP2 > SP3 > SP1, and the richness was SP3 > SP2 > SP1. Community composition analysis of bacteria showed that Proteobacteria and Bacteroides accounted for 49.7% and 53.7%, respectively, making them the most dominant phyla observed. In SP1, Proteobacteria was the most dominant phylum, followed by Bacteroides. In SP2 and SP3, Bacteroides was the most dominant phylum, followed by Proteobacteria. At subphyla level, Gammaproteobacteria, Alphaproteobacteria and Deltaproteobacteria accounted for 50%, 51.0%, and 42.2% of the Proteobacteria of SP1, SP2, and SP3, respectively. Betaproteobacteria and Epsilonproteobacteria were found only in SP3. RDA results showed that SOM, SM and EC were the main soil environmental factors affecting bacterial community structure. Keywords  The Ebinur Lake Wetland · 16S rRNA gene clone library · Diversity and richness · Community structure · RDA analysis

Introduction Microorganism mainly exists in the natural environment in the form of community. At the same time, it is closely related to many research fields, such as medical field (Zeng 2016) and environmental field (Zhao et al. 2015). Soil microbial Communicated by Erko Stackebrandt. Electronic supplementary material  The online version of this article (https​://doi.org/10.1007/s0020​3-020-02112​-6) contains supplementary material, which is available to authorized users. * Wenge Hu [email protected] Shuaibing He [email protected] Xitong Jin [email protected] Jing Han [email protected] 1



Comprehensive Microbe Resources Lab B, College of Life Science, Shihezi University, Shihezi 832000, Xinjiang, China

communities are involved in many important processes of soil functional restoration and play an important role in ecosystem restoration (Zhao et al. 2015). The microbial communities have been considered as indicators of ecosystem health, sustainability and stability (Chen et al. 2012). As edaphic parameters vary with environmental factors, especially in the Ebinur Lake Wetland, changes in the microbial community structure often result the change of its functional diversity (Bowker et al. 2002; Griffiths et al. 2003), which is mainly achieved through a variety of metabolic and physiological functions (Chen et al. 2018). For these reasons, understanding the potential changes in microbial community structure in response to soil en

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