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

doi:10.1007/s10980-014-9996-z

	Patterns and drivers of soil microbial communities along a precipitation gradient on the Mongolian Plateau
	Chen, Dima ; Mi, Jia ; Chu, Pengfei ; Cheng, Junhui ; Zhang, Lixia ; Pan, Qingmin; Xie, Yichun 1; Bai, Yongfei
	2015
发表期刊	LANDSCAPE ECOLOGY
ISSN	0921-2973
卷号	30 期号:9 页码:1669-1682
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.
关键词	The Inner Mongolia grassland transect Precipitation gradient PLFA Soil microbial community Plant community Soil properties
学科领域	Ecology ; Geography, Physical ; Geosciences, Multidisciplinary
DOI	10.1007/s10980-014-9996-z
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000361903500008
出版者	SPRINGER
文献子类	Article
出版地	DORDRECHT
EISSN	1572-9761
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]
作者邮箱	yfbai@ibcas.ac.cn
引用统计	被引频次：103[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.

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