通过木材衍生的酸调节微生物动力学,以减轻液体便储存期间的气体排放
Zhipeng Wu1, Guoyan Zhang1, Shuaixin Tian1
1State Key Laboratory of Nutrient Use and Management, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
Waste management (New York, N.Y.)
|December 11, 2025
概括
来自木材的酸有效降低了来自液体肥的氨 (NH3) 和温室气体 (GHG) 排放. 这种可持续的添加剂还提高了营养含量,为便管理提供了有前途的解决方案.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 微生物学 微生物学
背景情况:
- 气体排放,包括二氧化碳 (CO2),甲 (CH4),氨 (NH3) 和氧化 (N2O),是肥料储存期间的重要环境污染物.
- 植物衍生素已经显示出通过蛋白质结合和代谢途径抑制对微生物调节的潜力,这表明它在减轻这些排放方面发挥了作用.
研究的目的:
- 为了评估木材衍生的酸作为可持续的微生物调节剂,以减轻液体便储存期间的NH3和温室气体 (GHG) 排放.
- 评估凝结 (CT) 和水解 (HT) 混合物对气体排放和营养含量的协同效应.
主要方法:
- 确定了四种处理方法:对照剂 (CK),0.5%的凝结素 (CT),0.5%的水解素 (HT) 和0.25%CT + 0.25%HT (MIX) 的混合物.
- 测量包括总,有机物含量,微生物群体组成 (细菌和真菌),以及气体排放 (NH3,CH4,CO2).
主要成果:
- 坦宁的修正增加了肥料中的总和有机物质含量.
- 素改变了微生物群落,丰富了特定的细菌群,如蛋白质细菌和活性细菌,同时抑制了其他细菌群.
- CT,HT和MIX处理显著减少了NH3排放,分别减少了12.94%,21.14%和22.61%.
- 碳化合物排放量减少了51.44% (CT),4.07% (HT) 和31.09% (MIX),而二氧化碳排放量减少了32.43% (CT),10.90% (HT) 和15.43% (MIX).
- CH4和NH3排放与特定的微生物群体,温度,pH值和有机物质含量有明显的相关性.
结论:
- 来自木材的酸,特别是混合配方,有效地减轻液体便的NH3和温室气体排放.
- 酸的应用改善了营养节约,改变了微生物群落,为便管理提供了可持续的方法.
- 这些发现强调了酸作为减少与动物废物相关的环境污染的有希望的天然添加剂.
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