Changes in Soil Bacterial Community Structure and Diversity of Pinus Tabuliformis Plantation after 65 Years of near-naturalization in North China

Our study investigates the effect of near-naturalization of plantations on soil physicochemical and bacterial features and the difference between soil layers in Baxianshan National Nature Reserve. Four stands were involved, including two forest types: near-naturalized and natural secondary forests,...

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Bibliographic Details
Published in:Journal of sustainable forestry 2023-10, Vol.42 (9), p.887-909
Main Authors: Qiu, Zhenlu, Shi, Cong, Zhang, Mei, Tang, Lili, Li, Xueying, Zhao, Tiejian, Shi, Fuchen
Format: Article
Language:English
Subjects:
Bacteria
Carbon/nitrogen ratio
Community structure
dominant phyla
Environmental factors
Forestry
Forests
high throughput sequencing
Nature reserves
Near-Naturalization
Plantations
Proteobacteria
Relative abundance
Soil layers
Soil microorganisms
Soil properties
Soil structure
Soil surfaces
Soils
Surface layers
Sustainability
α-diversity
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Summary:Our study investigates the effect of near-naturalization of plantations on soil physicochemical and bacterial features and the difference between soil layers in Baxianshan National Nature Reserve. Four stands were involved, including two forest types: near-naturalized and natural secondary forests, with the former classified into three stages. Soil physicochemical and bacterial properties were determined and analyzed. TC, TN contents and C/N ratio of the surface soil were higher than the corresponding lower layer. TC, TN contents decreased first and then increased with near-naturalization, lower than the natural secondary forests, while the C/N ratio was the opposite; total and endemic OTUs quantity was more in the surface layer than the lower and both increased with near-naturalization; the dominant phyla were Proteobacteria, Acidobacteria, Gemmatimonadetes, and verrucomicrobia, the relative abundance of Proteobacteria increased with near-naturalization while that of other dominant phyla decreased; the α-diversity increased on the whole during near-naturalization and was lower than the natural secondary forests except for Simpson and Shannon index; environmental factors significantly explained the bacterial α-diversity and community structure of natural secondary forests but not near-naturalized forests. This study helps fully understand the change characteristics and response mechanisms of soil bacterial community structure to the restoration of the plantation.
ISSN:1054-9811
1540-756X
DOI:10.1080/10549811.2022.2123359