College of Life Science, Northeast Agricultural University, Harbin 150030, China.
College of Life Science, Tianjin Normal University, Tianjin 300387, China.
Bioresour Technol. 2023 Sep;384:129360. doi: 10.1016/j.biortech.2023.129360. Epub 2023 Jun 17.
Co-composting is an excellent and effective technology for treating livestock manure in which microorganisms play a crucial function. Therefore, this study aimed at investigating the changes of microbial interactions during co-composting. Six different addition ratios of chicken and pig manure were used in composting experiment. The results showed that the co-composting system using 60% chicken manure and 40% pig manure significantly altered the microbial diversity and community structure. In addition, the complexity and tightness of its microbial community network structure reached the maximum, as did the strength of its cooperative and competitive microbial interactions. The higher microbial abundance and microbial interaction have the potential to promote the decomposition and transformation of compost components. Therefore, this study preliminarily revealed the changes of microbial community in co-composting, which provided a theoretical basis for optimizing microbial community interaction in composting systems by mixing different ratios of materials in practice.
共堆肥是一种处理牲畜粪便的极好且有效的技术，其中微生物起着至关重要的作用。因此，本研究旨在研究共堆肥过程中微生物相互作用的变化。在堆肥实验中使用了 6 种不同的鸡粪和猪粪添加比例。结果表明，使用 60%鸡粪和 40%猪粪的共堆肥系统显著改变了微生物的多样性和群落结构。此外，其微生物群落网络结构的复杂性和紧密性达到了最大值，其合作和竞争微生物相互作用的强度也达到了最大值。较高的微生物丰度和微生物相互作用有可能促进堆肥成分的分解和转化。因此，本研究初步揭示了共堆肥中微生物群落的变化，为通过混合不同比例的材料来优化堆肥系统中微生物群落相互作用提供了理论依据。
