干旱区生态环境知识资源中心(Arid): Soil prokaryotic community shows no response to 2 years of simulated nitrogen deposition in an arid ecosystem in northwestern China

Arid

DOI	10.1111/1462-2920.15364
	Soil prokaryotic community shows no response to 2 years of simulated nitrogen deposition in an arid ecosystem in northwestern China
	Huang, Juying; Xu, Yixin; Yu, Hailong; Zhu, Wanwan; Wang, Pan; Wang, Bin; Na, Xiaofan
通讯作者	Na, XF (corresponding author), Lanzhou Univ, Sch Life Sci, Lanzhou, Peoples R China.
来源期刊	ENVIRONMENTAL MICROBIOLOGY
ISSN	1462-2912
EISSN	1462-2920
出版年	2021
卷号	23 期号:2 页码:1222-1237
英文摘要	An arid ecosystem might be sensitive to nitrogen (N) deposition, but the associated ecosystem-specific response of soil microbes is not well studied. To assess the N enrichment effects on plant and prokaryotic community diversity, we performed a two-year NH4NO3 treatment in a desert steppe in northwestern China. Results showed that N addition increased plant aboveground biomass and decreased plant Shannon diversity. A C-4 herb (Salsola collina) became dominant, and loss of legume species was observed. The concentrations of soil NH4+-N, NO3--N, microbial biomass N, and the plant aboveground biomass N pool increased in contrast to total N, suggesting that the N input into the arid ecosystem might mainly be assimilated by plants and exit the ecosystem. Remarkably, the alpha-diversity and structure of the soil prokaryotic community did not vary even at the highest N addition rate. Structural equation modelling further found that the plant aboveground N pool counteracted the acidification effect of N deposition and maintained soil pH thus partially stabilizing the composition of prokaryotic communities in a desert steppe. These findings suggested that the plants and N loss might contribute to the lack of responsiveness of soil prokaryotic community to N deposition in a desert steppe.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000602251800001
WOS关键词	MICROBIAL COMMUNITIES ; EXTRACTION METHOD ; RELATIVE UPTAKE ; BIOMASS ; BACTERIAL ; PHOSPHORUS ; GRASSLAND ; DYNAMICS ; DROUGHT ; ACIDITY
WOS类目	Microbiology
WOS研究方向	Microbiology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350124
作者单位	[Huang, Juying; Xu, Yixin; Zhu, Wanwan; Wang, Pan] Ningxia Univ, Inst Environm Engn, Yinchuan, Ningxia, Peoples R China; [Xu, Yixin; Yu, Hailong; Zhu, Wanwan; Wang, Pan] Ningxia Univ, Coll Resources & Environm, Yinchuan, Ningxia, Peoples R China; [Wang, Bin] Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou, Peoples R China; [Na, Xiaofan] Lanzhou Univ, Sch Life Sci, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Huang, Juying,Xu, Yixin,Yu, Hailong,et al. Soil prokaryotic community shows no response to 2 years of simulated nitrogen deposition in an arid ecosystem in northwestern China[J]. 兰州大学,2021,23(2):1222-1237.
APA	Huang, Juying.,Xu, Yixin.,Yu, Hailong.,Zhu, Wanwan.,Wang, Pan.,...&Na, Xiaofan.(2021).Soil prokaryotic community shows no response to 2 years of simulated nitrogen deposition in an arid ecosystem in northwestern China.ENVIRONMENTAL MICROBIOLOGY,23(2),1222-1237.
MLA	Huang, Juying,et al."Soil prokaryotic community shows no response to 2 years of simulated nitrogen deposition in an arid ecosystem in northwestern China".ENVIRONMENTAL MICROBIOLOGY 23.2(2021):1222-1237.