The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland

doi:10.1016/j.ecolind.2022.108918

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland
	Chen, Xiang ; Tian, Jianqing 3; Liu, Shixian 3,4; Wei, Zhijun ; Wang, Yang 3; Song, Xiangyang ; Zhang, Xiaoyan 1; Bai, Yongfei 3
刊名	ECOLOGICAL INDICATORS
	2022
卷号	139
关键词	Co-occurrence patterns Microbial network topology Nitrogen fertilizer Plant above ground productivity Stability
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2022.108918
文献子类	Article
英文摘要	The role of soil microbial diversity and interactions in controlling plant productivity after fertilization remains unknown in grassland systems. This knowledge gap hampers our understanding of how shifts in soil microbial diversity and interactions can modify soil functioning and grassland production under changing environments. In this study, we evaluated the influence of short-term field fertilization on soil microbial diversity, particularly the complexity of microbial ecological networks in controlling aboveground plant productivity under five nitrogen addition rates (0, 6, 12, 20, 32 g N m(-2) year(-1)). The N fertilization resulted in higher forage production. The bacterial and fungal alpha diversity and taxonomic composition were relatively stable across the N addition rates. Network analysis showed that the complexity of the bacterial network increased gradually with increasing N addition rates, peaking at 20 g N m(-2) year(-1), while modularity and \|negative\|: positive cohesion had contrasting patterns across the N addition rates. Additionally, the changes of bacterial interactions were predominantly driven by the keystone taxa richness and abundance. Compared with the bacterial co-occurrence network, the fungal co-occurrence network remained relatively stable. Strong positive linkages between plant production and the complexity of the bacterial network were also observed. Furthermore, the increment of forage production was highly related to the keystone taxa abundance. Together, our results highlighted that the complexity of the soil bacterial network plays a vital role in enhancing the connection between soil microbial diversity and plant production. Our findings exemplify a significant progress in projecting the effects of soil microbial diversity on ecosystem functions in grassland ecosystems.
学科主题	Biodiversity Conservation ; Environmental Sciences
电子版国际标准刊号	1872-7034
出版地	AMSTERDAM
WOS关键词	SOIL MICROBIAL COMMUNITIES ; BELOW-GROUND COMMUNITIES ; NITROGEN ENRICHMENT ; DIVERSITY ; BIODIVERSITY ; THRESHOLDS ; NETWORKS ; FUNGI
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000913330600001
资助机构	Inner Mongolia Key Project [2021ZD0044-02]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28757]
专题	植被与环境变化国家重点实验室
作者单位	1.Univ Chinese Acad Sci, Coll Life Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.M Grass Ecol & Environm Grp Co Ltd, Hohhot 010000, Peoples R China 3.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010011, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xiang,Tian, Jianqing,Liu, Shixian,et al. The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland[J]. ECOLOGICAL INDICATORS,2022,139.
APA	Chen, Xiang.,Tian, Jianqing.,Liu, Shixian.,Wei, Zhijun.,Wang, Yang.,...&Bai, Yongfei.(2022).The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland.ECOLOGICAL INDICATORS,139.
MLA	Chen, Xiang,et al."The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland".ECOLOGICAL INDICATORS 139(2022).