生物炭和堆肥增强土壤碳封存在城市绿色空间的同时应用
Ben Wang1,2, Wenfang Li1, Na Xue1
1College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, China.
Frontiers in microbiology
|November 24, 2025
概括
结合生物炭和堆肥作为土壤修改剂,可以改善城市绿色空间的土壤健康. 混合处理显著改善土壤水分,有机碳和营养素的可用性,促进碳封存.
科学领域:
- 土壤科学 土壤科学
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 生物炭和堆肥在城市土壤健康中的作用尚未完全理解.
- 城市绿地需要有效的土壤修改,以提高可持续性.
研究的目的:
- 研究生物炭和堆肥单独或组合对土壤特性和微生物功能的影响.
- 分析这些修正案对城市土壤中碳捕集基因和途径的影响.
主要方法:
- 使用Euonymus kiautschovicus进行了八种处理梯度的实地实验.
- 基因组测序和基因组组装基因组 (MAG) 分析,以评估土壤微生物组和功能基因.
- 评估土壤的物理化学特性,包括水分,有机碳和营养素的可用性.
主要成果:
- 结合生物炭 (4-8%) 和堆肥处理,协同改善了土壤水分,有机碳和可用的.
- 混合疗法重塑了微生物群落结构,丰富了酸菌和,并增加了碳固定基因.
- 减少型三碳酸循环 (rTCA) 显示了最高的基因丰度,MAG176被确定为关键参与者.
结论:
- 中低剂量生物炭与堆肥相结合,为城市土壤的物理化学特性和微生物功能提供了显著的好处.
- 这些混合修正案增强了城市绿地中的土壤碳捕获潜力.
- 结果为优化城市土壤管理和碳捕集策略中的生物炭堆肥应用提供了见解.
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