globalchange  > 气候变化与战略
DOI: 10.1016/j.soilbio.2019.107699
Title:
Climatic factors have unexpectedly strong impacts on soil bacterial β-diversity in 12 forest ecosystems
Author: Zheng Y.; Ji N.-N.; Wu B.-W.; Wang J.-T.; Hu H.-W.; Guo L.-D.; He J.-Z.
Source Publication: Soil Biology and Biochemistry
ISSN: 380717
Publishing Year: 2020
Volume: 142
Language: 英语
Keyword: Climatic factor ; Community assembly ; Forest ecosystem ; Latitudinal gradient ; β-diversity
Scopus Keyword: Bacteria ; Biodiversity ; Climate change ; Forestry ; Multivariant analysis ; Random processes ; Soils ; Stochastic systems ; Tropics ; Alpha and beta diversities ; Climatic factors ; Community assembly ; Forest ecosystem ; Implications for futures ; Latitudinal gradients ; Mean annual precipitation ; Soil bacterial community ; Ecosystems ; bacterium ; belowground biomass ; biodiversity ; community dynamics ; forest ecosystem ; global climate ; multivariate analysis ; pH ; soil microorganism ; China ; Bacteria (microorganisms)
English Abstract: It is critical to identify the community assembly patterns (i.e., deterministic or stochastic processes) of soil microbes and the potential driving factors to better predict the belowground biodiversity and functioning in forest ecosystems. Here, a combined approach of neutral model and multivariate analysis was employed to examine the soil bacterial communities in 12 undisturbed forests in China, spanning a wide latitudinal range from 21.6°N to 50.8°N. A clear divergent pattern was found for community composition, indicating that deterministic processes dominated the community assembly of soil bacteria. The α-diversity (richness) nonlinearly changed from tropical to cold temperate zones, with the lowest and highest values detected in subtropical and temperate zones, respectively. Although no latitudinal pattern was observed for β-diversity (community variation), there were clear climate zone patterns. Unlike the minor effects of mean annual precipitation (MAP) and temperature (MAT) on bacterial α-diversity, MAP and MAT were important factors affecting soil bacterial β-diversity. Soil pH was a strong driver of α- and β-diversity, but plant factors had only minor effects. Altogether, this study highlights the unexpected importance of climatic factors in shaping bacterial β-diversity in forest soils. Our findings have implications for future investigations of bacterial community dynamics in forest ecosystems, particularly the responses of community composition to global climate change scenarios across large geographical scales. © 2019
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Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/158897
Appears in Collections:气候变化与战略

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Affiliation: School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China; State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China

Recommended Citation:
Zheng Y.,Ji N.-N.,Wu B.-W.,et al. Climatic factors have unexpectedly strong impacts on soil bacterial β-diversity in 12 forest ecosystems[J]. Soil Biology and Biochemistry,2020-01-01,142
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