Strong partitioning of soil bacterial community composition and co-occurrence networks along a small-scale elevational gradient on Zijin Mountain

* Soil bacterial community composition strongly differed along a short elevational gradient. * Soil pH and elevation were significantly correlated with soil bacterial community composition. * Degree scores, betweenness centralities, and composition of network hubs differed among elevations. The elev...

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Bibliographic Details
Published in:Soil Ecology Letters 2021-12, Vol.3 (4), p.290-302
Main Authors: Liu, Xu, Yang, Teng, Shi, Yu, Zhu, Yichen, He, Mulin, Zhao, Yunke, Adams, Jonathan M., Chu, Haiyan
Format: Article
Language:English
Subjects:
Bacteria
Bacterial community composition
Co-occurrence network
Community composition
Composition
Dissolved organic carbon
Distribution patterns
DNA sequencing
Earth and Environmental Science
Ecology
Ecosystems
Elevation
Elevational distribution
Environment
Forests
Keystone species
Mountain forests
Mountains
Network hubs
Network topologies
Partitioning
Precipitation
Research Article
Soil chemistry
Soil Microbial Ecology
Soil microorganisms
Soil pH
Soil Science & Conservation
Soil sciences
Soils
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Summary:* Soil bacterial community composition strongly differed along a short elevational gradient. * Soil pH and elevation were significantly correlated with soil bacterial community composition. * Degree scores, betweenness centralities, and composition of network hubs differed among elevations. The elevational distributions of bacterial communities in natural mountain forests, especially along large elevational gradients, have been studied for many years. However, the distributional patterns that underlie variations in soil bacterial communities along small-scale elevational gradients in urban ecosystems are not yet well understood. Using Illumina MiSeq DNA sequencing, we surveyed soil bacterial communities at three elevations on Zijin Mountain in Nanjing City: the hilltop (300 m a.s.l.), the hillside (150 m a.s.l.), and the foot of the hill (0 m a.s.l.). The results showed that edaphic properties differed significantly with elevation. Bacterial community composition, rather than alpha diversity, strongly differed among the three elevations (Adonis: R 2 = 0.12, P
ISSN:2662-2289
2662-2297
DOI:10.1007/s42832-021-0122-2