干旱区生态环境知识资源中心(Arid): Soil properties and microbial abundance explain variations in N2O fluxes from temperate steppe soil treated with nitrogen and water in Inner Mongolia, China

Arid

DOI	10.1016/j.apsoil.2021.103984
	Soil properties and microbial abundance explain variations in N2O fluxes from temperate steppe soil treated with nitrogen and water in Inner Mongolia, China
	Zhang, Jiaqi; He, Pei; Liu, Yinghui; Du, Wei; Jing, Haichao; Nie, Cheng
通讯作者	Liu, YH (corresponding author), Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China.
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2021
卷号	165
英文摘要	Microbe-mediated soil nitrification and denitrification processes affect the variations in soil N2O fluxes. Researchers are concerned about how the abundances of nitrifiers and denitrifiers and the N2O fluxes from temperate semi-arid grassland soil vary as nitrogen (N) and water inputs vary. In this study, we report the results from a field experiment that was set up in a temperate semi-arid grassland area in northern China in May 2017. In August 2018, we collected samples to investigate how a range of physical, chemical and biological characteristics of soil, including the pH, moisture, dissolved organic carbon content (DOC) and available N content, N2O fluxes, and the abundances of ammonia oxidizers and denitrifiers in the soil, changed after N (4 g N.m(-2).year(-1) NH4NO3) and water (112.5 mm.year(-1)) were added over a period of 1 year. We analyzed the abundances of AOA amoA, AOB amoA, nirS, nirK and nosZ using quantitative PCR. We found that the soil N2O emissions were negatively affected by the water additions, but were not affected by the N additions. We also found that the AOA amoA and nosZ genes responded positively to the N additions. Watering had a positive effect on the nirS gene abundance, while N additions and water together intensified the effect of only water on the nirS gene abundance. The nirS gene abundance, soil pH, and DOC content explained 46.1%, 20.1% and 12.0% of the variations in the soil N2O fluxes, respectively. These results provide improved insights into how microorganisms affect N cycling, and may be used to help predict how soil N2O fluxes might change in the future, as N deposition and precipitation change.
英文关键词	Nitrogen deposition Precipitation Nitrification Denitrification Functional genes N2O fluxes Semi-arid grassland
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000657603200008
WOS关键词	COMPLETE NITRIFICATION ; AMMONIA OXIDIZERS ; FUNCTIONAL GENES ; COMMUNITIES ; DENITRIFICATION ; FERTILIZATION ; EMISSIONS ; BACTERIA ; DEPOSITION ; OXIDE
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368511
作者单位	[Zhang, Jiaqi; He, Pei; Liu, Yinghui; Du, Wei; Jing, Haichao; Nie, Cheng] Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jiaqi,He, Pei,Liu, Yinghui,et al. Soil properties and microbial abundance explain variations in N2O fluxes from temperate steppe soil treated with nitrogen and water in Inner Mongolia, China[J]. 北京师范大学,2021,165.
APA	Zhang, Jiaqi,He, Pei,Liu, Yinghui,Du, Wei,Jing, Haichao,&Nie, Cheng.(2021).Soil properties and microbial abundance explain variations in N2O fluxes from temperate steppe soil treated with nitrogen and water in Inner Mongolia, China.APPLIED SOIL ECOLOGY,165.
MLA	Zhang, Jiaqi,et al."Soil properties and microbial abundance explain variations in N2O fluxes from temperate steppe soil treated with nitrogen and water in Inner Mongolia, China".APPLIED SOIL ECOLOGY 165(2021).