Response of fungal communities to afforestation and its indication for forest restoration

Huang, Kaichuan; Guo, Zhenli; Zhao, Wen; Song, Chang-Ge; Wang, Hao; Li, Junning; Reyila, Mumin; Sun, Yanping; Cui, Bao‐Kai

doi:10.1016/j.fecs.2023.100125

Cited by 2 publications

(2 citation statements)

References 105 publications

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“…The Saihanba Mechanized Forest Farm, situated in the northern area of Hebei Province, China, stands as the world’s largest plantation forest, established in the 1950s. While our previous study comprehensively examined soil fungi in the Saihanba region, analyzing composition, functional variances, and underlying factors influencing fungal communities across various vegetation types [ 24 ], there is a significant gap in understanding soil bacteria within this region. We selected the main afforestation species in the forest site, that is, Larix gmelinii var.…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…Our previous study showed that differences in temperature and precipitation are also the main driving factors for differences in fungal communities at large regional scales (Wang et al, 2022). Even at a small local scale, there are significant differences in soil fungal communities among different vegetation types (Huang et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Spatial variations impact the soil fungal communities of Larix gmelinii forests in Northeast China

Zhao,

Huang,

Mumin

et al. 2024

Front. Plant Sci.

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Soil fungi play a critical role in the biogeochemical cycles of forest ecosystems. Larix gmelinii is a strong and important timber tree species, which forms close associations with a wide range of soil fungi. However, the temporal-spatial disparity effects on the assembly of soil fungal communities in L. gmelinii forests are poorly understood. To address these questions, a total of 120 samples, including 60 bulk soil and 60 root samples, were collected from Aershan and Genhe in July (summer) and October (autumn)2021. We obtained 7,788 operational taxonomic units (OTUs) after merging, filtering, and rarefying using high-throughput sequencing. The dominant phyla are Basidiomycota, Ascomycota, Mortierellomycota, and Mucoromycota. There were 13 dominant families, among which the families with average relative abundance more than 5% included Thelephoraceae, Mortierellaceae, Archaeorhizomycoaceae, and Inocybaceae. In the functional guilds, symbiotrophic fungi had a relative advantage in the identified functions, and the relative abundances of pathotrophic and saprotrophic fungi varied significantly between sites. There were 12 families differentially expressed across compartments, 10 families differentially expressed between seasons, and 69 families were differentially expressed between sites. The variation in alpha diversity in the bulk soil was greater than that in the rhizosphere soil. Among the three parts (compartment, season, and site), the site had a crucial effect on the beta diversity of the fungal community. Deterministic processes dominated fungal community assembly in Genhe, whereas stochastic processes dominated in Aershan. Soil physicochemical properties and climatic factors significantly affected fungal community structure, among which soil total nitrogen and pH had the greatest effect. This study highlights that spatial variations play a vital role in the structure and assembly of soil fungal communities in L. gmelinii forests, which is of great significance for us in maintaining the health of the forests.

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Response of fungal communities to afforestation and its indication for forest restoration

Cited by 2 publications

References 105 publications

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

Spatial variations impact the soil fungal communities of Larix gmelinii forests in Northeast China

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