干旱区生态环境知识资源中心(Arid): Enhanced atmospheric nitrogen deposition triggered little change in soil microbial diversity and structure in a desert ecosystem

Arid

DOI	10.1016/j.gecco.2021.e01879
	Enhanced atmospheric nitrogen deposition triggered little change in soil microbial diversity and structure in a desert ecosystem
	Sha, Minghui; Xu, Jing; Zheng, Zicun; Fa, Keyu
通讯作者	Fa, KY (corresponding author), China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
EISSN	2351-9894
出版年	2021
卷号	31
英文摘要	Enhanced atmospheric nitrogen deposition can greatly influence the soil nitrogen content and soil microorganisms in terrestrial ecosystems. However, there is a lack of knowledge about the response of soil microbes to changes in soil nitrogen, particularly in desert ecosystems. To address this, we used long-term artificial nitrogen addition to simulate atmospheric nitrogen deposition in a desert ecosystem in Ningxia, China. We adopted a high-throughput sequencing method (16S rRNA and ITS) to explore the effects of different amounts of atmospheric nitrogen deposition on soil microbial diversity and community structure. Six years of nitrogen addition (6 g N m(-2) y(-1)) significantly increased the soil organic carbon content and the total soil nitrogen content (p < 0.05) and promoted the growth of Leymus secalinus. However, it did not significantly change the diversity and the structure of soil microbial communities (p > 0.05). Further analysis revealed that nitrogen addition substantially reduced the number of positive correlations between soil microbial species and the number of core microbial species. Our results suggest that for desert ecosystems, at present, atmospheric nitrogen deposition may increase soil nitrogen use by some vegetation but it does not alleviate the competition for soil nitrogen between soil microbes and vegetation. Moreover, although enhanced atmospheric nitrogen deposition did not significantly change the soil microbial community structure, it may negatively affect the interactions among soil microbial species. This would hinder soil microbial adaptation to the changing environment and the development of desert ecosystems.
英文关键词	Atmospheric nitrogen deposition Soil microbial diversity Soil microbial community structure Desert ecosystems
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:000708625100009
WOS关键词	COMMUNITIES ; PLANT ; MICROORGANISMS ; BIODIVERSITY ; RESPIRATION ; LIMITATION ; RESPONSES ; ADDITIONS ; PATTERNS ; IMPACT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	中国农业大学 ; 北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363477
作者单位	[Sha, Minghui; Xu, Jing; Zheng, Zicun; Fa, Keyu] China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China; [Sha, Minghui; Xu, Jing; Zheng, Zicun; Fa, Keyu] Natl Field Sci Observat & Res Stn Efficient Water, Beijing, Peoples R China; [Fa, Keyu] Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Sha, Minghui,Xu, Jing,Zheng, Zicun,et al. Enhanced atmospheric nitrogen deposition triggered little change in soil microbial diversity and structure in a desert ecosystem[J]. 中国农业大学, 北京林业大学,2021,31.
APA	Sha, Minghui,Xu, Jing,Zheng, Zicun,&Fa, Keyu.(2021).Enhanced atmospheric nitrogen deposition triggered little change in soil microbial diversity and structure in a desert ecosystem.GLOBAL ECOLOGY AND CONSERVATION,31.
MLA	Sha, Minghui,et al."Enhanced atmospheric nitrogen deposition triggered little change in soil microbial diversity and structure in a desert ecosystem".GLOBAL ECOLOGY AND CONSERVATION 31(2021).