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A Fundamental Role of Slope Aspect and Elevation in Controlling Diversity Patterns of Soil Bacterial Communities: Insights from an Arid-Montane Ecosystem in China

文献类型：期刊论文

作者Chen, Long-Fei2; Kong, Jun-Qia2; He, Zhi-Bin2; Zhao, Wen-Zhi2; Song, Ming-Dan1; Li, Yue-Mei1; Gao, Yuan2; Yang, Shu-Ping2
刊名JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
出版日期2022-09-28
页码12
ISSN号0718-9508
关键词Bacteria Community diversity and composition Biogeographic patterns Topography Slope aspect Arid-montane ecosystems
DOI10.1007/s42729-022-01002-8
通讯作者He, Zhi-Bin(hzbmail@lzb.ac.cn)
英文摘要In montane ecosystems, slope aspect and elevation are the main topographic parameters that produce environmental heterogeneity related to microclimate, pedogenic processes, and vegetation patterns. However, their effects on belowground microbes are not well understood. In particular, there are few studies on how bacteria community responds to slope aspect. Here, we selected a shaded north-facing slope and a sunny south-facing slope, and investigated the influences of slope aspect and elevation on bacterial communities along transects at 2400 to 3800 m in the Qilian Mountains, a typical arid-montane ecosystem of northwestern China. The results showed that bacterial alpha and beta diversity differed significantly with slope aspect and elevation. North-facing slope had higher bacterial richness and abundance than south-facing slope, and the bacterial community composition differed significantly between slope aspects (stress = 0.062, R-2 = 0.849, p < 0.001) as revealed by non-metric multidimensional scaling analysis. Bacterial richness and diversity increased significantly with elevation and then decreased on both north-facing and south-facing slopes, with the highest values at 3500 m, and the community composition differed dramatically along elevation, as shown with quadratic relationships (R-south-facing(2) = 0.78; R-north-facing(2) = 0.66) between beta diversity indices and elevation. Redundancy analysis further revealed that the variations in soil pH, soil organic carbon, and soil carbon/nitrogen ratios induced by slope aspect and elevation contributed significantly to the diversity patterns of soil bacterial communities. These findings indicated a fundamental role of slope aspect and elevation in controlling diversity patterns of bacterial communities in arid-montane ecosystems, providing new insights into microbial relationships with topography.
WOS关键词FUNGAL COMMUNITIES ; ALTITUDINAL GRADIENT ; QILIAN MOUNTAINS ; LOESS PLATEAU ; PLANT ; ALPINE ; FOREST ; VEGETATION ; DYNAMICS ; NITRIFICATION
资助项目Key Program of the Chinese Academy of Sciences[QYZDJ-SSW-DQC040] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0303] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA23060301]
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
语种英语
出版者SPRINGER INT PUBL AG
WOS记录号WOS:000861160400002
资助机构Key Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)
源URL[http://ir.igsnrr.ac.cn/handle/311030/184989]  
专题中国科学院地理科学与资源研究所
通讯作者He, Zhi-Bin
作者单位1.Qinghai Univ, Acad Agr & Forestry Sci, Xining 810000, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Long-Fei,Kong, Jun-Qia,He, Zhi-Bin,et al. A Fundamental Role of Slope Aspect and Elevation in Controlling Diversity Patterns of Soil Bacterial Communities: Insights from an Arid-Montane Ecosystem in China[J]. JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,2022:12.
APA Chen, Long-Fei.,Kong, Jun-Qia.,He, Zhi-Bin.,Zhao, Wen-Zhi.,Song, Ming-Dan.,...&Yang, Shu-Ping.(2022).A Fundamental Role of Slope Aspect and Elevation in Controlling Diversity Patterns of Soil Bacterial Communities: Insights from an Arid-Montane Ecosystem in China.JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,12.
MLA Chen, Long-Fei,et al."A Fundamental Role of Slope Aspect and Elevation in Controlling Diversity Patterns of Soil Bacterial Communities: Insights from an Arid-Montane Ecosystem in China".JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION (2022):12.

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来源：地理科学与资源研究所

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