IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Linkage of N2O emissions to the abundance of soil ammonia oxidizers and denitrifiers in purple soil under long-term fertilization
Dong, Zhixin1,2; Zhu, Bo1,2; Hua, Keke1,2; Jiang, Yan3
Corresponding AuthorZhu, Bo
2015
Source PublicationSOIL SCIENCE AND PLANT NUTRITION
ISSN0038-0768
EISSN1747-0765
Volume61Issue:5Pages:799-807
SubtypeArticle
AbstractMicrobial nitrification and denitrification are responsible for the majority of soil nitrous (N2O) emissions. In this study, N2O emissions were measured and the abundance of ammonium oxidizers and denitrifiers were quantified in purple soil in a long-term fertilization experiment to explore their relationships. The average N2O fluxes and abundance of the amoAgene in ammonia-oxidizing bacteria during the observed dry season were highest when treated with mixed nitrogen, phosphorus and potassium fertilizer (NPK) and a single N treatment (N) using NH(4)HCO(3)as the sole N source; lower values were obtained using organic manure with pig slurry and added NPK at a ratio of 40%:60% (OMNPK),organic manure with pig slurry (OM) and returning crop straw residue plus synthetic NH(4)HCO(3)fertilizer at a ratio of 15%:85% (SRNPK). The lowest N2O fluxes were observed in the treatment that used crop straw residue(SR) and in the control with no fertilizer (CK). Soil NH(4)(+)provides the substrate for nitrification generating N2O as a byproduct. The N2O flux was significantly correlated with the abundance of the amoA gene in ammonia-oxidizing bacteria (r=0.984, p<0.001), which was the main driver of nitrification. During the wet season, soil nitrate (NO3-) and soil organic matter (SOC) were found positively correlated with N2O emissions (r=0.774, p=0.041 and r=0.827, p=0.015, respectively). The nirS gene showed a similar trend with N2O fluxes. These results show the relationship between the abundance of soil microbes and N2O emissions and suggest that N2O emissions during the dry season were due to nitrification, whereas in wet season, denitrification might dominate N2O emission.
KeywordN2o Flux Abundance Of Functional Gene Purple Soil Wheat-maize Cropping System
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1080/00380768.2015.1049930
WOS Subject ExtendedPlant Sciences ; Environmental Sciences & Ecology ; Agriculture
Indexed BySCI
WOS KeywordNITROUS-OXIDE EMISSIONS ; NORTH CHINA PLAIN ; COMMUNITY COMPOSITION ; GRAZED GRASSLAND ; ARCHAEA ; BACTERIA ; DIVERSITY ; QUANTIFICATION ; NITRIFICATION ; ECOSYSTEM
Language英语
Quartile4区
TOP
WOS SubjectPlant Sciences ; Environmental Sciences ; Soil Science
WOS IDWOS:000363531900006
Funding OrganizationNational Natural Science Foundation of China(41301266) ; Innovative Team Program of Chinese Academy of Sciences(KZZD-EW-TZ-06)
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/13833
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China
3.Meteorol Adm, Natl Meteorol Ctr, Beijing 100081, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Dong, Zhixin,Zhu, Bo,Hua, Keke,et al. Linkage of N2O emissions to the abundance of soil ammonia oxidizers and denitrifiers in purple soil under long-term fertilization[J]. SOIL SCIENCE AND PLANT NUTRITION,2015,61(5):799-807.
APA Dong, Zhixin,Zhu, Bo,Hua, Keke,&Jiang, Yan.(2015).Linkage of N2O emissions to the abundance of soil ammonia oxidizers and denitrifiers in purple soil under long-term fertilization.SOIL SCIENCE AND PLANT NUTRITION,61(5),799-807.
MLA Dong, Zhixin,et al."Linkage of N2O emissions to the abundance of soil ammonia oxidizers and denitrifiers in purple soil under long-term fertilization".SOIL SCIENCE AND PLANT NUTRITION 61.5(2015):799-807.
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