解码在共堆肥过程中溶解有机物转化和化中的真菌功能组的作用
Xin Li1, Zejin Zhang2, Fang Wang3
1Sino-Danish College & Sino-Danish Centre for Education and Research, University of Chinese Academy of Sciences, Beijing 100190, China; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark.
的功能特征,不仅仅是类型,显著影响有机废物的堆肥和化. 优化原料比例和注射特定的真菌群体可以提高堆肥质量和环保产品的开发.
科学领域:
- 环境微生物学
- 土壤科学
- 生物技术
背景情况:
- 在有机废物堆肥和生态友好的产品的形成中,真菌群体至关重要.
- 在堆肥过程中,真菌功能特征与溶解有机物 (DOM) 转化之间的关系尚不清楚.
研究的目的:
- 在绿色废物和污水污泥的共同堆肥过程中调查真菌的分类学和功能群的继承.
- 在不同的原料比例下,确定真菌群落与DOM转化和化之间的关联.
- 确定驱动化过程的关键功能组.
主要方法:
- 在五种不同的比率 (1:1到1:3) 中共堆肥绿色废物和污水污泥.
- 使用18S rRNA基因测序分析真菌群体组成和功能组.
- 监测溶解有机物 (DOM) 的特性和湿化指数.
- 同时发生的网络分析,随机森林模型和结构方程建模.
主要成果:
- 根据养比例,真菌群体的组成有显著的变化,其中食性真菌占主导地位,病原体被抑制.
- 菌18S rRNA基因拷贝数与不同堆肥阶段的湿酸度相关.
- 的功能性群体与DOM属性和化比分类群体更强烈.
- 结构方程建模证实真菌功能组是化 (R2 = 0.75) 和酸积累 (R2 = 0.50) 的重要驱动因素.
结论:
- 菌类的功能特征是堆肥性能和肥化效率的关键决定因素.
- 调整原料比例和潜在的特定真菌功能组可以优化堆肥策略并提高堆肥质量.
- 这项研究更深入地了解了由真菌驱动的DOM转化及其对可持续废物管理的影响.
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