在中国东北部寒冷温带森林的不同森林恢复战略下,土壤微生物群落结构和组装过程的变化
Rongze Luo1, Mingyu Wang1, Youjia Zhang1
1Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China.
Microorganisms
|June 27, 2025
概括
中国的自然森林恢复比人工方法更多地增强了土壤的营养,改变了微生物群落. 两种恢复类型中的微生物群落都是由决定性过程驱动的,为可持续森林管理提供了洞察力.
科学领域:
- 生态生态学 生态生态学
- 土壤科学 土壤科学
- 微生物学 微生物学
背景情况:
- 中国的寒冷温带森林生态系统至关重要,但面临着人类的干扰.
- 了解土壤微生物社区对恢复的反应对于生态系统健康至关重要.
研究的目的:
- 在中国温带森林中,在自然 (NR) 和人工 (AR) 恢复下调查土壤微生物社区聚集模式.
- 为了比较NR和AR对土壤特性和微生物多样性的影响.
主要方法:
- 高通量测序用于分析土壤细菌和真菌群落.
- 测量了土壤营养度 (TN,AN,DOC,SOC) 的情况.
- 分析了社区组装过程.
主要成果:
- 在NR下的土壤显示TN,AN,DOC和SOC明显高于AR.
- 细菌的α-多样性没有变化,但真菌的α-多样性在恢复模式之间有显著的变化.
- 细菌和真菌的β多样性都被恢复模式显著改变.
- 像*Pajaroellobacter*,*Podila*和*Russula*这样的特定属在NR中更为丰富,而*Incoybe*在AR中是关键.
- 确定性过程主要推动了NR和AR的微生物社区聚集.
结论:
- 不同的森林恢复策略显著影响土壤特性和微生物社区结构.
- 与人工修复相比,自然修复在增强土壤营养素和改变微生物组成方面似乎更有效.
- 确定性过程是恢复温带森林土壤中微生物聚集的关键驱动因素,为可持续的管理实践提供信息.
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