College of Resources and Environmental Sciences, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, 100193 Beijing, PR China.
College of Resources and Environmental Sciences, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, 100193 Beijing, PR China; Organic Recycling Institute (Suzhou) of China Agricultural University, Wuzhong District 215128, Jiangsu Province, PR China.
Bioresour Technol. 2022 Feb;345:126417. doi: 10.1016/j.biortech.2021.126417. Epub 2021 Nov 25.
Window composting with inoculation or frequent turning is a superior way to improve traditional composting efficiency. However, the relationship between the innocent treatment in composting with inoculation or turning and microbial dynamics is unclear. Here, the impact of inoculation and turning for full scale composting on core bacterial community and their co-occurrence network as well as harmless level were compared by network analysis. Results showed that composts with both inoculation and turning had 46% increase of total organic carbon degradation compared to traditional composting and decreased the abundance of potential pathogens. The relative abundance of thermophilic bacteria and Galbibacter, Methylocaldum, Steroidobacter, etc. increased during composting with turning and inoculation. Luteimonas, Sphaerobacter, Turicibacter and Flavobacterium as core bacteria had significant difference between control and composting with enhanced innocent treatment efficiency. Network analysis suggested that turning increased the number of indigenous core bacteria and inoculation enhanced the interaction among key bacterial network.
接种或频繁翻堆的窗口式堆肥是提高传统堆肥效率的一种优越方法。然而，接种或翻堆堆肥中的无菌处理与微生物动态之间的关系尚不清楚。在这里，通过网络分析比较了接种和翻堆对全规模堆肥的核心细菌群落及其共生网络以及无害化水平的影响。结果表明，与传统堆肥相比，接种和翻堆的堆肥总有机碳降解率增加了 46%，潜在病原体的丰度降低。在接种和翻堆过程中，嗜热菌和 Galbibacter、Methylocaldum、Steroidobacter 等的相对丰度增加。Luteimonas、Sphaerobacter、Turicibacter 和 Flavobacterium 等作为核心细菌，在对照和强化无菌处理效率的堆肥之间存在显著差异。网络分析表明，翻堆增加了土著核心细菌的数量，而接种增强了关键细菌网络之间的相互作用。
