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树种混合通过改变微生物网络复杂性和Larix olgensis中的组装过程来调节土壤的多营养循环

Yue Liu¹, Chunjing Jiao¹, Wanju Feng²

¹Jilin Provincial Academy of Forestry Sciences, Changchun 130033, China.

|February 27, 2026

概括

混合森林通过增强微生物多样性和合作,促进土壤营养循环. 树种混合改善了土壤微生物的功能和森林生态系统中的营养供应途径.

科学领域:

森林生态森林生态
土壤微生物学土壤微生物学
生物地质化学循环的过程

背景情况:

混合针叶宽叶森林改善了土壤的多营养循环 (SMC).
机制,特别是根球微生物群落的作用,人们对其了解甚少.

研究的目的:

研究Larix olgensis*根球中的细菌和真菌群落如何驱动SMC.
在混合种群中用*Fraxinus mandshurica**阐明微生物途径以供应营养.

主要方法:

纯与混合的L. olgensis和F. mandshurica种植园中的SMC比较.
分析了细菌和真菌社区的结构和多样性.
构建跨王国共发生网络.
利用随机森林和结构方程建模.

主要成果:

在混合 (0.43) 中,SMC明显高于纯 (-0.51).
树种混合增强了微生物多样性,社区聚集的随机性,减少了分散限制.
混合种群显示细菌-真菌合作增加 (19.7%更多的正相关性).
微生物多样性,网络复杂性和细菌组合预测了SMC.

结论:

混合针叶-宽叶种植园增强土壤微生物的功能和营养循环.
改善的SMC是由增加的微生物多样性,改变的组装过程和复杂的相互作用网络驱动的.

关键词:

拉里克斯老鼠的起源组装过程的组装过程.混合物种种植园的种植园.网络复杂性网络的复杂性根球土壤土壤根球土壤土壤的多营养循环.

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