磁性生物炭加速了微生物的继承,并在猪肥堆肥过程中增强了吸收性酸盐的减少
Xinxin You1, Sheng Wang2, Junhui Chen3
1Institute of Eco-environmental Sciences, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, PR China; Southern Zhejiang Key Laboratory of Crop Breeding, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, PR China; The State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, PR China.
Environment international
|February 7, 2024
概括
磁性生物炭 (MBC) 增强了微生物相互作用,并加速了猪堆肥. 在堆肥过程中,MBC还通过调节循环基因来减少温室气体排放.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 土壤科学 土壤科学
背景情况:
- 生物炭在有氧堆肥中的应用促进了微生物活动,并减少了氧化 (N2O) 排放.
- 磁性生物炭 (MBC) 在猪堆肥过程中对微生物继承和N2O排放的特定影响需要进一步调查.
研究的目的:
- 研究磁性生物炭 (MBC) 对微生物群落结构,功能基因和猪堆肥过程中的N2O排放的影响.
- 阐明MBC在调节转化路径和直接跨物种电子转移中的作用.
主要方法:
- 一个为期42天的堆肥实验,使用不同MBC添加率的猪 (0%,2%,5%,7.5%) 和基于猪的生物炭 (5%).
- 使用元基因组测序来分析微生物群落组成和功能基因.
- 福利埃变换红外光谱法 (FTIR) 用于描述生物炭的特性.
主要成果:
- MBC处理显示出比基于猪的生物炭 (PBC) 更稳定的芳香结构,这表明增强了N2O降低潜力.
- 与PBC相比,MBC显著改善了有机物堆肥和碳/比.
- 微生物社区分析显示,从Firmicutes转向Proteobacteria,Actinobacteria和Bacteroidota,MBC增强了主导微生物之间的相互作用并加速了堆肥.
结论:
- 磁性生物炭通过增强微生物群体相互作用和加速有机物降解,有效地促进猪堆肥.
- MBC的应用影响了循环基因,加速了同化酸盐的减少,同时减缓了异化酸盐的减少和脱.
- 这些发现凸显了MBC作为一种在有氧堆肥过程中减轻温室气体排放的策略的潜力.
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