Varying Effects of Straw-Returning Methods on Soil Microbial Diversity and Community Composition in Northeast China
文献类型： 外文期刊
作者： Zhang, Yitao 1 ; Wang, Yuxian 2 ; Sun, Zhanbin 3 ;
作者机构： 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Heilongjiang Acad Agr Sci, Qiqihar Branch, Qiqihar 161006, Peoples R China
3.Beijing Technol & Business Univ, Sch Light Ind Sci & Engn, Beijing 100048, Peoples R China
关键词：
straw-returning; soil microbial diversity; soil microbial community composition;
期刊名称：MICROORGANISMS （ 影响因子：4.2； 五年影响因子：4.6 ）
ISSN：
年卷期： 2025 年 13 卷 8 期
页码：
收录情况： SCI
摘要： Straw-returning is an effective way to improve straw utilization efficiency and reduce environmental pollution. Various straw-returning methods exist; however, their effects on soil microbial diversity and community composition in cool regions have been little studied. This study investigated the changes of soil microbial diversity and community composition under three straw-returning methods, i.e., straw mulching, straw mulching and overturning, straw crushed and mixed, as compared to straw removal as control. The results showed that straw-returning could alter the soil microbial community composition and abundance compared with straw removal. Alpha diversity analysis showed that straw mulching treatment, and straw crushed and mixed treatment significantly increased the diversity of both soil bacteria and fungi compared with straw mulching and overturning treatment. Moreover, this study preliminarily screened Trichoderma, Chaetomium and Streptomyces as potential straw-degrading microorganisms. This study provides basis for further enhancement of straw degradation by using soil microorganisms and sheds light on future work for improving straw degradation efficiency.
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