干旱区生态环境知识资源中心(Arid): Effects of nitrogen fertilization on soil CO2 emission and bacterial communities in maize field on the semiarid Loess Plateau

Arid

DOI	10.1007/s11104-023-06084-6
	Effects of nitrogen fertilization on soil CO2 emission and bacterial communities in maize field on the semiarid Loess Plateau
	Wang, Jinbin; Li, Lingling; Xie, Junhong; Xie, Lihua; Effah, Zechariah; Luo, Zhuzhu; Nizamani, Mir Muhammad
通讯作者	Li, LL
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2023
英文摘要	Background and aimsNitrogen fertilization is one of the most important practices for improving of crop yield and soil quality, which also affects soil CO2 emission. CO2 emission is strongly influenced by soil bacterial communities. It is still unknown precisely how nitrogen fertilization affects soil bacterial communities in the semiarid Loess Plateau and how its effects are related to CO2 emissions.MethodsA field experiment was conducted with four nitrogen fertilization rates (0 (N0), 100 (N1), 200 (N2), and 300 (N3) kg N ha(-1)). Nitrogen fertilization effects soil bacterial communities, CO2 emission, carbon emission efficiency (CEE), and their relationships were investigated.ResultsAs a result of nitrogen fertilization, soil bacterial abundance increased, and the bacterial community composition and network changed. Soil CO2 emission under N1, N2, and N3 were increased by 17.3%, 24.8%, and 28.9% compared to the N0 treatment, respectively. N2 and N3 exhibited the highest maize grain yield and CEE. CEE under N2 and N3 increased by 96.9%-140.9% compared to the N0 treatment. Soil bacterial abundance had a positive correlation with CO2 emission. CO2 emission were also affected by the bacterial composition and network, which were related to the Actinobacteria. Multiple regression analysis further suggested that CO2 emission was jointly regulated by the abundance, composition, and network modules of the bacterial community.ConclusionOverall, our results indicated that nitrogen fertilization promoted CO2 emission via increasing bacterial abundance and altering the composition of their community, and provided a new insight into the connection between soil microorganisms and agricultural CO2 emission in the semi-arid region.
英文关键词	Nitrogen fertilization Soil CO2 emission Soil bacterial communities Maize field Semiarid Loess Plateau
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000993944800001
WOS关键词	NETWORK ANALYSIS REVEALS ; HETEROTROPHIC RESPIRATION ; TEMPERATURE SENSITIVITY ; MICROBIAL BIOMASS ; ORGANIC-CARBON ; AUTOTROPHIC RESPIRATION ; FUNGAL COMMUNITIES ; ROTATION CROPLAND ; WATER-USE ; LAND-USE
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398026
推荐引用方式 GB/T 7714	Wang, Jinbin,Li, Lingling,Xie, Junhong,et al. Effects of nitrogen fertilization on soil CO2 emission and bacterial communities in maize field on the semiarid Loess Plateau[J],2023.
APA	Wang, Jinbin.,Li, Lingling.,Xie, Junhong.,Xie, Lihua.,Effah, Zechariah.,...&Nizamani, Mir Muhammad.(2023).Effects of nitrogen fertilization on soil CO2 emission and bacterial communities in maize field on the semiarid Loess Plateau.PLANT AND SOIL.
MLA	Wang, Jinbin,et al."Effects of nitrogen fertilization on soil CO2 emission and bacterial communities in maize field on the semiarid Loess Plateau".PLANT AND SOIL (2023).