title: Urban-development-induced Changes in the Diversity and Composition of the Soil Bacterial Community in Beijing.
abstract: Numerous studies have implicated urbanization as a major cause of loss of biodiversity. Most of them have focused on plants and animals, even though soil microorganisms make up a large proportion of that biodiversity. However, it is unclear how the soil bacterial community is affected by urban development. Here, paired-end Illumina sequencing of the 16 S rRNA gene at V4 region was performed to study the soil microbial community across Beijing's built-up area. Proteobacteria, Acidobacteria, Bacteroidetes, Actinobacteria, Gemmatimonadetes, Verrucomicrobia, Planctomycetes, and Chloroflexi were the dominant phyla in all samples, but the relative abundance of these phyla differed significantly across these concentric zones. The diversity and composition of the soil bacterial community were found to be closely correlated with soil pH. Variance partitioning analysis suggested that urban ring roads contributed 5.95% of the bacterial community variation, and soil environmental factors explained 17.65% of the variation. The results of the current work indicate that urban development can alter the composition and diversity of the soil microbial community, and showed pH to be a key factor in the shaping of the composition of the soil bacterial community. Urban development did have a strong impact on the bacterial community of urban soil in Beijing.
authors.affiliation: College of Water Sciences, Beijing Normal University, Beijing, China.|Chinese Research Academy of Environmental Sciences, Beijing, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Yan
authors.affiliation: Chinese Research Academy of Environmental Sciences, Beijing, China.
authors.forename: Junsheng
authors.initials: J
authors.lastname: Li
authors.affiliation: Chinese Research Academy of Environmental Sciences, Beijing, China.
authors.forename: Nengwen
authors.initials: N
authors.lastname: Xiao
authors.affiliation: College of Water Sciences, Beijing Normal University, Beijing, China.|Chinese Research Academy of Environmental Sciences, Beijing, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Qi
authors.affiliation: College of Water Sciences, Beijing Normal University, Beijing, China.|Chinese Research Academy of Environmental Sciences, Beijing, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Fu
authors.affiliation: Chinese Research Academy of Environmental Sciences, Beijing, China.
authors.forename: Gaohui
authors.initials: G
authors.lastname: Liu
authors.affiliation: School of Environment and Natural Resources, Renmin University of China, Beijing, China.
authors.forename: Mengping
authors.initials: M
authors.lastname: Qiao
mesh_terms: D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D044822:Biodiversity; D002244:Carbon / Q000032:analysis; D002681:China; D004553:Electric Conductivity; D006813:Humidity; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000032:analysis; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D021521:Ribotyping; D012988:Soil Microbiology; D014507:Urbanization
chemical_list: D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D002244:Carbon; D009584:Nitrogen