干旱区生态环境知识资源中心(Arid): Variations in diversity, composition, and species interactions of soil microbial community in response to increased N deposition and precipitation intensity in a temperate grassland

Arid

DOI	10.1186/s13717-023-00445-w
	Variations in diversity, composition, and species interactions of soil microbial community in response to increased N deposition and precipitation intensity in a temperate grassland
	Cui, Shuyan; Xiao, Yushan; Zhou, Yu; Wu, Pengfeng; Cui, Liqiang; Zheng, Guo
通讯作者	Zheng, G
来源期刊	ECOLOGICAL PROCESSES
EISSN	2192-1709
出版年	2023
卷号	12 期号:1
英文摘要	BackgroundGlobal climate change has resulted in precipitation regimes exhibiting an increasing trend in rainfall intensity but a reduction in frequency. In addition, nitrogen (N) deposition occurs simultaneously in arid and semi-arid regions. Microbial biomass, diversity, composition, and species interactions are key determinants of ecological functions. We examined the effects of changes in precipitation intensity and N addition on the soil bacterial and fungal communities in a semi-arid grassland in Inner Mongolia, China.MethodsThe microbial biomass (bacterial PLFAs and fungal PLFAs) was determined through phospholipid fatty acid (PLFA) analysis, and microbial diversity (Shannon index and evenness index) was determined with high-throughput sequencing (16S and ITS). Species interactions were determined using a molecular ecological network analysis. The relationships between microbial community (bacterial community and fungal community) and environmental variables were examined by Mantel tests.ResultsWe found that N addition decreased fungal PLFA under moderate, high, and extreme precipitation intensity treatments and increased fungal community complexity under the high precipitation intensity treatment. Furthermore, N addition increased bacterial diversity under moderate and high precipitation intensity treatments. N addition caused greater environmental stress to the fungal community, which was dominated by deterministic processes.ConclusionsThe effects of N deposition on soil bacterial and fungal communities were altered by precipitation intensity. The changes in soil bacterial and fungal communities were different, implying that composition and functional traits adapt differently to projected global changes at a regional scale.
英文关键词	Microbial community composition Phospholipid fatty acid High-throughput sequencing Precipitation intensity N deposition
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001032369000001
WOS关键词	NITROGEN ; BACTERIAL ; STABILITY ; CARBON ; FUNGI ; PH
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396007
推荐引用方式 GB/T 7714	Cui, Shuyan,Xiao, Yushan,Zhou, Yu,et al. Variations in diversity, composition, and species interactions of soil microbial community in response to increased N deposition and precipitation intensity in a temperate grassland[J],2023,12(1).
APA	Cui, Shuyan,Xiao, Yushan,Zhou, Yu,Wu, Pengfeng,Cui, Liqiang,&Zheng, Guo.(2023).Variations in diversity, composition, and species interactions of soil microbial community in response to increased N deposition and precipitation intensity in a temperate grassland.ECOLOGICAL PROCESSES,12(1).
MLA	Cui, Shuyan,et al."Variations in diversity, composition, and species interactions of soil microbial community in response to increased N deposition and precipitation intensity in a temperate grassland".ECOLOGICAL PROCESSES 12.1(2023).