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Patterns and drivers of soil microbial communities along a precipitation gradient on the Mongolian Plateau

文献类型：期刊论文

作者Chen, Dima; Mi, Jia; Chu, Pengfei; Cheng, Junhui; Zhang, Lixia; Pan, Qingmin; Xie, Yichun1; Bai, Yongfei
刊名LANDSCAPE ECOLOGY
出版日期2015
卷号30期号:9页码:1669-1682
关键词The Inner Mongolia grassland transect Precipitation gradient PLFA Soil microbial community Plant community Soil properties
ISSN号0921-2973
DOI10.1007/s10980-014-9996-z
文献子类Article
英文摘要Our understanding of the patterns and drivers of soil microbial communities at the regional scale remains inadequate although both have been extensively studied in plant communities. In this study, we examined the patterns and drivers of soil microbial communities using data from 24 arid and semi-arid ecosystem sites, covering a broad range of community types, soils, and climates on the Mongolian Plateau. Our findings demonstrated that, at the regional scale, the total soil microbial biomass, fungal biomass, bacterial biomass, and actinomycete biomass increased with mean annual precipitation, soil organic carbon (SOC), total soil nitrogen (TSN), C:N ratio, annual aboveground net primary productivity (ANPP), and root biomass. However, these values decreased with increasing soil pH and mean annual temperature and showed hump-shaped relationships with plant species richness (SR) and ANPP. Variations in soil microbial communities were associated with precipitation, plant community (SR, ANPP, and BB), and soil properties (SOC, TSN, and pH). At the local scale in a typical steppe, water addition by 30 % increased the total microbial biomass by 20 %, bacterial biomass by 16 %, and actinomycete biomass by 54 %. The increased microbial biomass, however, was still 25-41 % lower than that in the meadow steppe that received similar amount rainfall, indicating that, apart from the dominant effect of precipitation, plant community and soil properties could also regulate soil microbial communities. Our findings have important implications for understanding the impacts of climate change (e.g., precipitation) on soil microbial communities and linkages to ecosystem functioning in the Inner Mongolia grasslands and elsewhere.
学科主题Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
出版地DORDRECHT
电子版国际标准刊号1572-9761
WOS关键词BELOW-GROUND COMMUNITIES ; NITROGEN DEPOSITION ; LAND-USE ; FUNGAL COMMUNITIES ; PLANT COMPOSITION ; SEMIARID STEPPE ; ORGANIC-CARBON ; CLIMATE-CHANGE ; DIVERSITY ; GRASSLAND
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000361903500008
出版者SPRINGER
资助机构Natural Science Foundation of China [31030013, 31320103916, 31100335] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050400] ; Land-Cover/Land-Use Program at NASA [NNX09AK87G]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25649]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China
2.Eastern Michigan Univ, Dept Geog & Geol, Ypsilanti, MI 48197 USA
推荐引用方式
GB/T 7714		 Chen, Dima,Mi, Jia,Chu, Pengfei,et al. Patterns and drivers of soil microbial communities along a precipitation gradient on the Mongolian Plateau[J]. LANDSCAPE ECOLOGY,2015,30(9):1669-1682.
APA Chen, Dima.,Mi, Jia.,Chu, Pengfei.,Cheng, Junhui.,Zhang, Lixia.,...&Bai, Yongfei.(2015).Patterns and drivers of soil microbial communities along a precipitation gradient on the Mongolian Plateau.LANDSCAPE ECOLOGY,30(9),1669-1682.
MLA Chen, Dima,et al."Patterns and drivers of soil microbial communities along a precipitation gradient on the Mongolian Plateau".LANDSCAPE ECOLOGY 30.9(2015):1669-1682.

入库方式： OAI收割

来源：植物研究所

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