干旱区生态环境知识资源中心(Arid): Mycorrhizal fungi maintain plant community stability by mitigating the negative effects of nitrogen deposition on subordinate species in Central Asia

Arid

DOI	10.1111/jvs.12944
	Mycorrhizal fungi maintain plant community stability by mitigating the negative effects of nitrogen deposition on subordinate species in Central Asia
	Jia, Yangyang; Walder, Florian; Wagg, Cameron; Feng, Gu
通讯作者	Feng, G
来源期刊	JOURNAL OF VEGETATION SCIENCE
ISSN	1100-9233
EISSN	1654-1103
英文摘要	Questions Plant community stability is threatened by increasing numbers of simultaneously changing factors such as increased precipitation and nitrogen (N) deposition. Despite the pivotal roles of arbuscular mycorrhizal fungi (AMF) for plant community dynamics, only few studies have paid attention to their roles in maintaining plant community stability under global change. We therefore assessed the interactive effects of a realistic N deposition and AMF on plant community temporal stability under future increased precipitation scenarios. Location Gurbantunggut desert, China. Methods We conducted a four-year field experiment simulating a realistic N deposition and with/without AMF treatments in one typical ephemeral plant community, dynamically monitoring the changes in plant community biomass and composition. Results We found that suppression of AMF significantly reduced Shannon-Wiener diversity and evenness while the realistic N deposition only marginally reduced the Shannon-Wiener diversity. Suppression of AMF and increased N deposition highly increased the species turnover. Particularly, the stability of subordinate plant species significantly correlated to the community-level stability. AMF were able to buffer the negative effects of increased N deposition on plant community diversity, to maintain community-level stability. Conclusions Our study supports the subordinate insurance hypothesis, highlighting the considerable roles of subordinate plant species in maintaining community stability. Furthermore, our results indicate the joint roles of AMF and N deposition in regulating plant community stability, and point to the importance of taking AMF and the realistic N deposition into account for understanding the responses of community stability to multiple global change scenarios.
英文关键词	arbuscular mycorrhizal fungi Central Asia climate change ephemeral plant community nitrogen deposition subordinate insurance hypothesis subordinate species temporal stability
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000572803300001
WOS关键词	ECOSYSTEM STABILITY ; TEMPORAL STABILITY ; JUNGGAR BASIN ; BIODIVERSITY ; DIVERSITY ; PRODUCTIVITY ; ENRICHMENT ; DROUGHT ; GRASSLANDS ; IMPACTS
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328274
作者单位	[Jia, Yangyang; Feng, Gu] China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China; [Jia, Yangyang; Walder, Florian] Agroscope, Res Div Agroecol & Environm, Plant Soil Interact, Zurich, Switzerland; [Wagg, Cameron] Agr & Agri Food Canada, Fredericton Res & Dev Ctr, Fredericton, NB, Canada
推荐引用方式 GB/T 7714	Jia, Yangyang,Walder, Florian,Wagg, Cameron,et al. Mycorrhizal fungi maintain plant community stability by mitigating the negative effects of nitrogen deposition on subordinate species in Central Asia[J]. 中国农业大学.
APA	Jia, Yangyang,Walder, Florian,Wagg, Cameron,&Feng, Gu.
MLA	Jia, Yangyang,et al."Mycorrhizal fungi maintain plant community stability by mitigating the negative effects of nitrogen deposition on subordinate species in Central Asia".JOURNAL OF VEGETATION SCIENCE