Soil microbial community structure of &lt;i&gt;Larix gmelinii&lt;/i&gt; forest in the Aershan area

Zhang, Wen; Wang, Dandan; Reyila, Mumin; Huang, Kaichuan; Liu, Shun; Cui, Bao‐Kai

doi:10.17520/biods.2022258

Cited by 2 publications

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“…Equimolar concentrations of all samples were pooled and subjected to paired-end sequencing on the Illumina MiSeq platform by Personal Biotechnology Co., Ltd. (Shanghai, China). Raw sequences were processed using the QIIME2 platform (version 2021.2) [ 29 , 30 ]. The qiime cutadapt plugin was employed to eliminate sequence primers, followed by de-duplication, quality control, merging, and chimera removal using the qiime dada2 plug-in [ 31 ].…”

Section: Methodsmentioning

confidence: 99%

Afforestation-Induced Shifts in Soil Bacterial Diversity and Community Structure in the Saihanba Region

Huang,

Zhao,

et al. 2024

Microorganisms

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Afforestation plays a pivotal role in ecosystem restoration, exemplified by the Saihanba Mechanized Forest Farm, the world’s largest planted forest; however, the assembly mechanisms and interactions of soil microbial communities in such forests remain inadequately understood. This study aimed to elucidate the impact of different afforestation tree species, namely Larix gmelinii var. principis-rupprechtii, Picea asperata, and Pinus sylvestris var. mongolica, on soil bacterial diversity and community structure in comparison to grassland. Sixty soil samples were collected at a 20 cm depth, and high-throughput sequencing was employed to identify bacterial communities and assess their interactions with environmental factors. A total of 6528 operational taxonomic units (OTUs) were identified, with Solirubrobacter, Conexibacter, Bacillus, Massilia, Gaiella, Acidibacter, and Vicinamibacter being the dominant genera. Afforestation significantly impacted soil bacterial alpha diversity, with notable influence from key soil chemical properties, including available phosphorus (AP), cation exchange capacity (CEC), and the carbon-to-nitrogen ratio of soil organic matter (SOM-C/N). The Mantel test highlighted pH, the Normalized Difference Vegetation Index (NDVI), and spatial variable (dbMEM) as primary environmental factors influencing dominant bacterial genera. The bacterial community structure demonstrated deterministic homogeneous selection, wherein SOM-C/N emerged as a significant factor influencing the dissimilarity of soil bacterial communities. Furthermore, plantation soils exhibited a more complex network structure than grassland soil, highlighting the crucial role of bacterial communities in vegetation changes and providing valuable insights into their response to environmental factors during the reforestation process.

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Section: Methodsmentioning

confidence: 99%

Afforestation-Induced Shifts in Soil Bacterial Diversity and Community Structure in the Saihanba Region

Huang,

Zhao,

et al. 2024

Microorganisms

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Seasonal variation in the soil fungal community structure of Larix gmelinii forests in Northeast China

Zhao

Wang²,

Huang³

et al. 2023

Front. Microbiol.

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Soil fungi play an indispensable role in forest ecosystems by participating in energy flow, material circulation, and assisting plant growth and development. Larix gmelinii is the dominant tree species in the greater Khingan Mountains, which is the only cold temperate coniferous forest in China. Understanding the variations in underground fungi will help us master the situation of L. gmelinii above ground. We collected soil samples from three seasons and analyzed the differences in soil fungal community structure using high-throughput sequencing technology to study the seasonal changes in soil fungal community structure in L. gmelinii forests. We found that the Shannon and Chao1 diversity in autumn was significantly lower than in spring and summer. The community composition and functional guild varied significantly between seasons. Furthermore, we showed that ectomycorrhizal fungi dominated the functional guilds. The relative abundance of ectomycorrhizal fungi increased dramatically from summer to autumn and was significantly negatively correlated with temperature and precipitation. Temperature and precipitation positively affect the alpha diversity of fungi significantly. In addition, pH was negatively correlated with the Chao1 diversity. Temperature and precipitation significantly affected several dominant genera and functional guilds. Among the soil physicochemical properties, several dominant genera were affected by pH, and the remaining individual genera and functional guilds were significantly correlated with total nitrogen, available phosphorus, soil organic carbon, or cation exchange capacity. For the composition of total fungal community, temperature and precipitation, as well as soil physicochemical properties except AP, significantly drove the variation in community composition.

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Soil microbial community structure of <i>Larix gmelinii</i> forest in the Aershan area

Cited by 2 publications

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Afforestation-Induced Shifts in Soil Bacterial Diversity and Community Structure in the Saihanba Region

Afforestation-Induced Shifts in Soil Bacterial Diversity and Community Structure in the Saihanba Region

Seasonal variation in the soil fungal community structure of Larix gmelinii forests in Northeast China

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