Variations in the Structure and Composition of Soil Microbial Communities of Different Forests in the Daxing’anling Mountains, Northeastern China

Variations in the Structure and Composition of Soil Microbial Communities of Different Forests in the Daxing’anling Mountains, Northeastern China

Soil microorganisms are crucial in global biogeochemical cycles, impacting ecosystems’ energy flows and material cycling. This study, via high-throughput sequencing in four forests—the original <i>Larix gmelinii</i> (Rupr.) Kuzen. forest (LG), the conifer–broad-leaved mixed <i>Pinu...

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Bibliographic Details
Main Authors: Han Qu, Mingyu Wang, Xiangyu Meng, Youjia Zhang, Xin Gao, Yuhe Zhang, Xin Sui, Maihe Li
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Microorganisms
Subjects:
cold temperate climate
forest types
original purest forest
microbial structure
soil microbial diversity
Online Access:https://www.mdpi.com/2076-2607/13/6/1298
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Summary:Soil microorganisms are crucial in global biogeochemical cycles, impacting ecosystems’ energy flows and material cycling. This study, via high-throughput sequencing in four forests—the original <i>Larix gmelinii</i> (Rupr.) Kuzen. forest (LG), the conifer–broad-leaved mixed <i>Pinus sylvestris</i> var. <i>mongolica</i> Litv. forest (PS), the original pure <i>Betula platyphylla</i> Sukaczev forest (BP), and the original pure <i>Populus</i> L. forest (PL) in Shuanghe National Nature Reserve, Daxing’anling mountains—explored soil microbial community structures and diversities. The results indicated that the BP and PL forests had the lowest soil bacterial ACE and Chao1 indices, and the original pure birch forest’s Shannon index was higher than that of the poplar forest. The soil’s fungal Chao1 index of the birch forest was higher than that of the larch forests. <i>Bradyrhizobium</i> and <i>Roseiarcus</i> were the dominant soil bacterial genera; the dominant soil fungal genera were <i>Podila</i>, <i>Russula</i>, and <i>Sebacina</i>. RDA and mantel analyses indicated that soil microbial community structures varied across forest types mainly because of the effective phosphorous and pH levels, soil’s total nitrogen level, and available phosphorus level. This study offers a scientific foundation for cold-temperate-forest ecosystem management regarding soil microbial diversity and community structural changes in different forest types.
ISSN:2076-2607

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