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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
Source PublicationFRONTIERS IN MICROBIOLOGY
Volume11
AbstractGlobal 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.
Keywordsoil fungi phylogenetic community structure community assembly climate change structural equation model
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/60224
Collection中国科学院西北高原生物研究所
Recommended Citation
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).
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