肥料管理减轻了微生物碳和的限制,同时在耕地与草原相比,在耕地保留了土壤有机碳:一个元分析
Xing Liu1, Mengjie Han2, Mengmeng Zhang3
1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China; College of Forestry, Jiangxi Agricultural University, Nanchang, 330045, China.
Journal of environmental management
|November 8, 2025
概括
肥料增强土壤有机碳 (SOC) 并改变微生物营养限制. 有机肥料在增加SOC的同时,可以加剧碳限制,影响土壤质量.
科学领域:
- 土壤科学 土壤科学
- 微生物学 微生物学
- 生物地质化学生物地质化学
背景情况:
- 酶体积测量有助于推断微生物的营养限制.
- 酶容量和土壤有机碳 (SOC) 在调节受精过程中的微生物代谢中的作用尚未完全理解.
研究的目的:
- 研究土壤酶和SOC如何影响微生物对不同施肥策略的代谢反应.
- 评估有机,无机和混合肥料对微生物限制和SOC的影响.
主要方法:
- 对42项已发表的研究进行了元分析.
- 对土壤酶,SOC和肥策略的数据进行了合成.
主要成果:
- 施肥显著增加了SOC18.82%,受生态系统类型和战略的影响.
- 酶比表明碳 (C) 和 (N) 相对于 (P) 的微生物限制增加.
- 有机肥处理加剧了微生物C限制.
结论:
- 施肥策略,特别是涉及有机肥的施肥策略,可以减轻微生物C和N的限制,同时保持SOC.
- 了解酶固化测量对于优化施肥策略和保持土壤肥沃度至关重要.
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