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热带森林恢复期间土壤真菌群落的变化,聚合过程和驱动因素

Xiaofei Guo^1,2, Shaojun Wang¹, Chen Wang¹

¹College of Ecology and Environment, Southwest Forestry University, Kunming 650224, China.

Journal of fungi (Basel, Switzerland)

|January 22, 2024

概括

热带森林恢复改变了土壤真菌群落,从r-战略家转变为K-战略家. 土壤的特性,特别是碳和,在继承期间推动了真菌组成和多样性的这些变化.

科学领域:

生态生态学生态生态学
土壤科学土壤科学
菌类学菌类学是指菌类学.

背景情况:

土壤真菌群落对于森林生态系统的功能至关重要,影响着地面和地下的相互作用.
森林恢复对土壤环境和植物群落产生重大影响,影响土壤真菌组合.
了解热带森林恢复期间的土壤真菌社区动态和组装过程仍然至关重要.

研究的目的:

研究热带二级森林继承期间土壤真菌群体组成,多样性和组装过程的变化.
为了确定推动真菌群落中这些转变的关键土壤特性.
阐明决定性与随机过程在真菌社区组合中的作用.

主要方法:

利用Illumina高通量测序来分析土壤真菌群落.
在热带二级森林 (12,42,53岁) 的时间序列中检查了真菌群落.
与土壤属性测量相关的真菌社区数据.

主要成果:

观察到,随着森林年龄的增加,占主导地位的真菌类从r-战略家 (Ascomycota) 转变为K-战略家 (Basidiomycota).
在恢复期间记录了真菌多样性 (OTU,ACE,Chao1,香农指数) 的下降.
发现决定性过程,而不是随机过程,主要控制着真菌社区的组合.
确定了土壤微生物生物质碳,易氧化碳和土壤水含量作为真菌社区组成的重要驱动因素.
强调微生物生物质碳,容易氧化碳和总对真菌社区多样性的负面贡献.

结论:

热带森林的恢复大大改变了土壤真菌社区的结构和多样性.
土壤碳和池受到恢复的影响,是这些真菌社区变化的主要媒介.
在森林继承过程中,决定性过程在塑造真菌组合中发挥着主导作用.

关键词:

希苏安班纳 (Xishuangbanna) 是一个组装过程组装过程确定性过程是一个决定性的过程.菌类组合菌类组合菌类组合热带森林恢复热带森林恢复

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