Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe

NWIPB OpenIR

	Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe
	Xiao, Yuanming; Li, Changbin; Yang, Yang; Peng, Yunfeng; Yang, Yuanhe; Zhou, Guoying
	2020
发表期刊	FRONTIERS IN MICROBIOLOGY
卷号	11
摘要	Global climate change and nitrogen deposition have been having broad impacts on microorganisms. On the Qinghai-Tibetan Plateau (QTP), the responses of soil microbial community assemblage and diversity to nitrogen deposition and changes in precipitation are poorly understood, especially in the alpine steppe. In this study, we conducted a field manipulative experiment of nitrogen deposition and precipitation amount in an alpine steppe on the northeastern QTP and investigated the responses of community composition, diversity, and community assemblage of soil fungi. Soil fungal community compositions were significantly altered under nitrogen addition, precipitation change, and their interaction, and positively related with soil moisture, soil pH, and plant species richness. However, they were negatively related to soil mineralizable N and soil available P content. Operational taxonomic units (OTU) richness and Chao 1 index decreased under nitrogen addition combined with precipitation reduction treatment, whereas the Shannon-Wiener index declined only under precipitation increment treatment. Convergent fungal community assembly processes were not acutely altered by both nitrogen addition and precipitation changes, indicating that environmental filtering was a dominant ecological process controlling fungal community assemblage. By elucidating the above questions, the study enhanced our ability to predict the responses of soil fungal communities to nitrogen deposition and precipitation changes at alpine steppes on the QTP in the future.
关键词	soil fungi phylogenetic community structure community assembly climate change structural equation model
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60224
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Xiao, Yuanming,Li, Changbin,Yang, Yang,et al. Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe[J]. FRONTIERS IN MICROBIOLOGY,2020,11.
APA	Xiao, Yuanming,Li, Changbin,Yang, Yang,Peng, Yunfeng,Yang, Yuanhe,&Zhou, Guoying.(2020).Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe.FRONTIERS IN MICROBIOLOGY,11.
MLA	Xiao, Yuanming,et al."Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe".FRONTIERS IN MICROBIOLOGY 11(2020).