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带有水热碳化水相调节的有氧化堆肥:稳定活性气排放

Yuanyuan Feng¹, Haijun Sun², Sen Chen³

¹Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry and Grassland, Nanjing Forestry University, Nanjing 210037, China; Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, National Agricultural Experiment Station for Agricultural Environment (Luhe), Ministry of Agriculture and Rural Affairs; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Murdoch Applied Innovation Nanotechnology Research Group, College of Science, Health, Engineering and Education, Murdoch University, Perth, WA 6150, Australia.

Journal of hazardous materials

|January 7, 2025

概括

水热碳化水相 (HAP) 显著降低了 (NH3) 和氧化 (N2O) 从肥堆肥中的排放量. 高HAP的应用降低了NH3挥发率高达26%,影响了细菌群落和堆肥特性.

科学领域:

环境科学环境科学
土壤科学土壤科学
微生物学微生物学

背景情况:

在堆肥过程中,反应性气性 (N) 损失,包括氨 (NH3) 和氧化 (N2O),是环境的重大问题.
水热碳化水相 (HAP) 对堆肥排放的影响及其机制尚不清楚.

研究的目的:

为了研究HAP和修改的HAP (MHAP) 对便堆肥的气态N排放 (NH3和N2O) 的影响.
探索由HAP应用影响的潜在机制,包括堆肥特性和细菌群落的变化.

主要方法:

来自Quercus acutissima叶的HAP和MHAP被添加到肥堆肥中,应用率为5%和10% (w/w).
测量包括NH3和N2O流量,堆肥物理化学特性和细菌群体组成.
使用统计分析来确定环境因素和细菌多样性对气体排放的影响.

主要成果:

与对照组相比,HAP的高应用率显著减少了23-26%的累积NH3挥发.
堆肥温度和无机度是影响NH3和N2O排放的关键因素.
高水平的HAP和MHAP降低了Bacteroidota和Proteobacteria的相对丰度,改变了细菌群落.

结论:

应用HAP,特别是高速率,是减少堆肥NH3和N2O排放的有效策略.
堆肥环境因素和细菌多样性在调节气态排放方面发挥着主导作用.
这些发现支持合理使用HAP来减轻家禽便堆肥中的气态排放.

关键词:

堆肥生育能力堆肥生育能力气态气排放的排放量这就是HAP HAP.微生物社区的微生物社区.养便是家禽便的一种.

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