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首页> 美国卫生研究院文献>Scientific Reports >Changes in Plant Rhizosphere Microbial Communities under Different Vegetation Restoration Patterns in Karst and Non-karst Ecosystems
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Changes in Plant Rhizosphere Microbial Communities under Different Vegetation Restoration Patterns in Karst and Non-karst Ecosystems

机译：喀斯特和非喀斯特生态系统不同植被恢复方式下植物根际微生物群落的变化

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Understanding how patterns of recovery and geological conditions affect microbial communities is important for determining the stability of karst ecosystems. Here, we investigated the diversity and composition of microorganisms in karst and non-karst environments under natural restoration and artificial rehabilitation conditions. The results showed no significant differences in soil microbial diversity, but the microbial communities associated with geological conditions and tree species differed significantly. Variation partitioning analysis (VPA) showed that a total of 77.3% of the variation in bacteria and a total of 69.3% of the variation in fungi could be explained by vegetation type and geological background. There were significant differences in six bacterial classes (Actinobacteria, Alphaproteobacteria, Ktedonobacteria, TK10, Gammaproteobacteria, and Anaerolineae) and nine fungal classes (Eurotiomycetes, Agaricomycetes, unclassified _p_Ascomycota, Sordariomycetes, Tremellomycetes, norank_k_Fungi, Pezizomycetes, Leotiomycetes and Archaeorhizomycetes) among the soils collected from six plots. A Spearman correlation heatmap showed that the microbial community was affected by the major soil properties. Principal coordinates analysis indicated that the microbial community of Pinus yunnanensis in the artificial forest, which was established for the protection of the environment was most similar to that in the natural secondary forest in the karst ecosystem. These findings further our understanding of microbial responses to vegetation restoration and geological conditions.
机译：了解恢复方式和地质条件如何影响微生物群落对于确定喀斯特生态系统的稳定性很重要。在这里，我们研究了自然恢复和人工恢复条件下岩溶和非岩溶环境中微生物的多样性和组成。结果表明，土壤微生物多样性无明显差异，但与地质条件和树木种类有关的微生物群落差异显着。变异分区分析（VPA）表明，细菌的总变异量为77.3％，真菌的变异量为69.3％，可以通过植被类型和地质背景来解释。在六个细菌类别（放线菌，α变形细菌，角膜细菌，TK10，γ变形杆菌和厌氧菌）和九个真菌类别（欧洲菌，Agaricomycetes，未分类的_p_Ascomycota，Sordariomycetes，Lemthelececeomycestes，Lemthelececeomytes，Fonder_ceyceaetes，F。从六个地块。 Spearman相关热图显示微生物群落受到主要土壤性质的影响。主坐标分析表明，为保护环境而建立的云南松人工林中的微生物群落与喀斯特生态系统中的天然次生林最为相似。这些发现使我们进一步了解了微生物对植被恢复和地质条件的反应。

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