DOI: 10.1016/j.atmosenv.2017.11.054
Scopus记录号: 2-s2.0-85036480328
论文题名: Straw enhanced CO2 and CH4 but decreased N2O emissions from flooded paddy soils: Changes in microbial community compositions
作者: Wang N ; , Yu J ; -G ; , Zhao Y ; -H ; , Chang Z ; -Z ; , Shi X ; -X ; , Ma L ; Q ; , Li H ; -B
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 174 起始页码: 171
结束页码: 179
语种: 英语
英文关键词: Greenhouse gas
; Microbial community compositions
; Paddy soil
; Straw return
Scopus关键词: Bacteria
; Carbon dioxide
; Denitrification
; Floods
; Gas emissions
; Global warming
; Greenhouse gases
; Microorganisms
; Soils
; Bacterial community composition
; Denitrifying bacteria
; DOC concentrations
; Flooded conditions
; Global warming potential
; Microbial community composition
; Paddy soils
; Soil characteristics
; Soil pollution
; carbon dioxide
; iron
; methane
; nitrogen oxide
; agricultural soil
; bacterium
; carbon dioxide
; community composition
; community dynamics
; global warming
; greenhouse gas
; methane
; microbial activity
; microbial community
; nitric oxide
; paddy field
; straw
; Acidobacteria
; Actinobacteria
; Article
; carbon footprint
; Chloroflexi
; Clostridium
; comparative study
; controlled study
; Firmicutes
; flooding
; greenhouse effect
; kinetics
; microbial community
; nonhuman
; priority journal
; Proteobacteria
; soil
; soil acidity
; soil property
; China
; Jiangsu
; Taizhou
; Yixing
; Zhejiang
; Bacteria (microorganisms)
; Clostridium
; Firmicutes
; Proteobacteria
; Triticum aestivum
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: To explore microbial mechanisms of straw-induced changes in CO2, CH4, and N2O emissions from paddy field, wheat straw was amended to two paddy soils from Taizhou (TZ) and Yixing (YX), China for 60 d under flooded condition. Illumia sequencing was used to characterize shift in bacterial community compositions. Compared to control, 1–5% straw amendment significantly elevated CO2 and CH4 emissions with higher increase at higher application rates, mainly due to increased soil DOC concentrations. In contrast, straw amendment decreased N2O emission. Considering CO2, CH4, and N2O emissions as a whole, an overall increase in global warming potential was observed with straw amendment. Total CO2 and CH4 emissions from straw-amended soils were significantly higher for YX than TZ soil, suggesting that straw-induced greenhouse gas emissions depended on soil characteristics. The abundance of C-turnover bacteria Firmicutes increased from 28–41% to 54–77% with straw amendment, thereby increasing CO2 and CH4 emissions. However, straw amendment reduced the abundance of denitrifying bacteria Proteobacteria from 18% to 7.2–13% or increased the abundance of N2O reducing bacteria Clostridium from 7.6–11% to 13–30%, thereby decreasing N2O emission. The results suggested straw amendment strongly influenced greenhouse gas emissions via alerting soil properties and bacterial community compositions. Future field application is needed to ascertain the effects of straw return on greenhouse gas emissions. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83077
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China; Laboratory for Agricultural Wastes Treatment and Recycling, Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China; Soil and Water Science Department, University of Florida, Gainesville, FL, United States
Recommended Citation:
Wang N,, Yu J,-G,et al. Straw enhanced CO2 and CH4 but decreased N2O emissions from flooded paddy soils: Changes in microbial community compositions[J]. Atmospheric Environment,2018-01-01,174