Variability in responses of bacterial communities and nitrogen oxide emission to urea fertilization among various flooded paddy soils

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 土壤环境科学实验室

	Variability in responses of bacterial communities and nitrogen oxide emission to urea fertilization among various flooded paddy soils
	Ding, Long-Jun; Su, Jian-Qiang; Wang, Ning; Zhu, Yong-Guan; Xu, Hui-Juan; Li, Hong-Bo
刊名	FEMS MICROBIOLOGY ECOLOGY
	2015-03
卷号	91 期号:3 页码:-
关键词	Bacterial Population Nitrous Oxide Urea Functional Gene
英文摘要	Fertilization affects bacterial communities and element biogeochemical cycling in flooded paddy soils and the effect might differ among soil types. In this study, five paddy soils from Southern China were subjected to urea addition to explore impacts of fertilization on nitrogen oxide (N2O) emission and bacterial community composition under the flooding condition. 16S rRNA gene-based illumina sequencing showed no obvious shifts in bacterial community composition of five soils after urea addition. However, some genera were affected by fertilization addition and the influenced genera varied among soils. During the late period (day 8-19) of flooding incubation without urea addition, N2O emission rates were elevated for all soils. However, urea effects on N2O emission were different among flooded soils. For soils where nirS and nirK gene abundances increased with urea addition, N2O emission was significantly increased compared to control treatment. Redundancy analysis showed that dissolved organic carbon, ammonium (NH4+), ferrous iron (Fe2+) and nitrate (NO3-) in pore water explained 33.4% of the variation in soil bacterial community composition, implying that urea regimes influenced the relative abundance of some bacterial populations possibly by regulating soil characteristics and then influencing N2O emission. These results provided insights into soil type-dependent effect of fertilization on the overall bacterial communities and nitrogen oxide emission in flooded paddy soils.
WOS研究方向	Microbiology
WOS记录号	WOS:000352781700010
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32905]
专题	生态环境研究中心_土壤环境科学实验室
推荐引用方式 GB/T 7714	Ding, Long-Jun,Su, Jian-Qiang,Wang, Ning,et al. Variability in responses of bacterial communities and nitrogen oxide emission to urea fertilization among various flooded paddy soils[J]. FEMS MICROBIOLOGY ECOLOGY,2015,91(3):-.
APA	Ding, Long-Jun,Su, Jian-Qiang,Wang, Ning,Zhu, Yong-Guan,Xu, Hui-Juan,&Li, Hong-Bo.(2015).Variability in responses of bacterial communities and nitrogen oxide emission to urea fertilization among various flooded paddy soils.FEMS MICROBIOLOGY ECOLOGY,91(3),-.
MLA	Ding, Long-Jun,et al."Variability in responses of bacterial communities and nitrogen oxide emission to urea fertilization among various flooded paddy soils".FEMS MICROBIOLOGY ECOLOGY 91.3(2015):-.