Meta-Analysis of Organic Fertilization Effects on Soil Bacterial Diversity and Community Composition in Agroecosystems
文献类型： 外文期刊
作者： Shu, Xiangyang 1 ; Liu, Weijia 2 ; Huang, Han 3 ; Ye, Qinxin 2 ; Zhu, Shunxi 2 ; Peng, Zhaohui 2 ; Li, Yiding 4 ; Deng, Liangji 4 ; Yang, Zepeng 5 ; Chen, Honglin 5 ; Liu, Dinghui 5 ; Shi, Jialing 6 ;
作者机构： 1.Sichuan Normal Univ, Minist Educ, Key Lab Land Resources Evaluat & Monitoring Southw, Chengdu 610068, Peoples R China
2.Chengdu Acad Agr & Forestry Sci, Inst Agr Bioenvironm & Energy, Chengdu 611130, Peoples R China
3.Xinjiang Agr Univ, Coll Econ & Management, Urumqi 830052, Peoples R China
4.Sichuan Agr Univ, Coll Resources, Chengdu 611130, Peoples R China
5.Sichuan Acad Agr Sci, Soil & Fertilizer Res Inst, Chengdu 610066, Peoples R China
6.Chengdu Agr & Rural Bur, Chengdu 610066, Peoples R China
关键词： organic fertilization; bacterial diversity; soil acidity; copiotrophic bacteria; agroecosystems
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN：
年卷期： 2023 年 12 卷 22 期
页码：
收录情况： SCI
摘要： Application of organic fertilizers or their combination with chemical fertilizers is a feasible practice for improving soil fertility and reducing soil degradation in agroecosystems, and these regulations are mainly mediated though soil microbial communities. Despite bacteria ranking among the most abundant and diverse groups of soil microorganisms, the effects of long-term organic fertilization (OF) and chemical-organic fertilization (COF) on soil bacterial diversity and community composition remain unclear. In this study, we conducted a meta-analysis and demonstrated that OF had no significant effect on bacterial alpha diversity. Application of chemical fertilizer and crop residue significantly decreased bacterial Richness index. Both OF and COF significantly altered bacterial community structure, with these changes being predominately attributed to shifts in soil pH. For bacterial phyla, both OF and COF significantly increased the relative abundance of Proteobacteria and Bacteroidetes, suggesting that OF and COF may cause the enrichment of copiotrophic taxa. In addition, COF significantly increased the relative abundance of Gammaproteobacteria but decreased the relative abundance of Acidobacteria. Overall, our results suggest that organic and chemical-organic fertilization can effectively maintain bacterial diversity and enhance soil fertility in agroecosystems, and the alteration of soil bacterial community structure is closely intertwined with soil pH.
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