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题名: Elevated carbon dioxide accelerates the spatial turnover of soil microbial communities
作者: Deng, Ye; He, Zhili; Xiong, Jinbo; Yu, Hao; Xu, Meiying; Hobbie, Sarah E.; Reich, Peter B.; Schadt, Christopher W.; Kent, Angela; Pendall, Elise; Wallenstein, Matthew; Zhou, Jizhong
刊名: GLOBAL CHANGE BIOLOGY
出版日期: 2016-02
卷号: 22, 期号:2, 页码:957-964
关键词: elevated carbon dioxide ; free air CO2 enrichment ; microbial community ; spatial turnover rate ; -diversity
DOI: 10.1111/gcb.13098
部门归属: 中国科学院环境生物技术重点实验室
英文摘要: Although elevated CO2 (eCO(2)) significantly affects the -diversity, composition, function, interaction and dynamics of soil microbial communities at the local scale, little is known about eCO(2) impacts on the geographic distribution of micro-organisms regionally or globally. Here, we examined the -diversity of 110 soil microbial communities across six free air CO2 enrichment (FACE) experimental sites using a high-throughput functional gene array. The -diversity of soil microbial communities was significantly (P<0.05) correlated with geographic distance under both CO2 conditions, but declined significantly (P<0.05) faster at eCO(2) with a slope of -0.0250 than at ambient CO2 (aCO(2)) with a slope of -0.0231 although it varied within each individual site, indicating that the spatial turnover rate of soil microbial communities was accelerated under eCO(2) at a larger geographic scale (e.g. regionally). Both distance and soil properties significantly (P<0.05) contributed to the observed microbial -diversity. This study provides new hypotheses for further understanding their assembly mechanisms that may be especially important as global CO2 continues to increase.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36124
Appears in Collections:中国科学院环境生物技术重点实验室_期刊论文

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