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pH-Related Changes in Soil Bacterial Communities in the Sanjiang Plain, Northeast China

文献类型： 外文期刊

作者： Wang, Mingyu 1 ; Pu, Wenmiao 1 ; Wang, Shenzheng 1 ; Zeng, Xiannan 5 ; Sui, Xin 1 ; Wang, Xin 1 ;

作者机构： 1.Heilongjiang Univ, Engn Res Ctr Agr Microbiol Technol, Minist Educ, Harbin 150080, Peoples R China

2.Heilongjiang Univ, Heilongjiang Prov Key Lab Ecol Restorat & Resource, Harbin 150080, Peoples R China

3.Heilongjiang Univ, Coll Heilongjiang Prov, Key Lab Microbiol, Harbin 150080, Peoples R China

4.Heilongjiang Univ, Sch Life Sci, Harbin 150080, Peoples R China

5.Heilongjiang Acad Agr Sci, Inst Crop Cultivat & Tillage, Harbin 150088, Peoples R China

关键词： soil bacteria; alpha diversity; soil pH; nitrogen; organic matter

期刊名称：MICROORGANISMS （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 11 卷 12 期

页码：

收录情况： SCI

摘要： Soil bacteria are crucial components of terrestrial ecosystems, playing an important role in soil biogeochemical cycles. Although bacterial community diversity and composition are regulated by many abiotic and biotic factors, how soil physiochemical properties impact the soil bacteria community diversity and composition in wetland ecosystems remains largely unknown. In this study, we used high-throughput sequencing technology to investigate the diversity and composition of a soil bacterial community, as well as used the structural equation modeling (SEM) method to investigate the relationships of the soil's physicochemical properties (i.e., soil pH, soil organic carbon (SOC), total nitrogen (TN), ammonium nitrogen (NH4+N), electrical conductivity (EC) and nitrate nitrogen (NO3-N)), and soil bacterial community structures in three typical wetland sites in the Sanjiang Plain wetland. Our results showed that the soil physicochemical properties significantly changed the alpha and beta-diversity of the soil bacteria communities, e.g., soil TN, NH4+N, NO3-N, and SOC were the main soil factors affecting the soil bacterial alpha-diversity. The soil TN and pH were the key soil factors affecting the soil bacterial community. Our results suggest that changes in soil pH indirectly affect soil bacterial communities by altering the soil nitrogenous nutrient content.

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