中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effects of elevated CO2 and N fertilization on CH4 emissions from paddy rice fields

文献类型:期刊论文

作者Xu, ZJ; Zheng, XH; Wang, YS; Han, SH; Huang, Y; Zhu, JG; Butterbach-Bahl, K
刊名GLOBAL BIOGEOCHEMICAL CYCLES
出版日期2004-08-10
卷号18期号:3页码:9
关键词free-air carbon dioxide enrichment (FACE) N fertilization CH4 emission paddy rice fields
ISSN号0886-6236
DOI10.1029/2004GB002233
通讯作者Xu, ZJ(zhongjunxu@yahoo.com)
英文摘要The authors employed free-air carbon dioxide enrichment facilities for investigating the effects of elevating the present atmospheric CO2 by 200 mumol mol(-1) and increasing the application rate of urea-based fertilizers from 150 to 250 kg N ha(-1) on CH4 emissions from paddy rice fields in southeastern China. The elevated CO2 significantly stimulated methane emission, which was mainly due to the stimulation in rice growth. Intensifying N fertilization mitigated the CH4 emission under the ambient CO2 but stimulated the CH4 emission under the elevated CO2. This suggests that N fertilization has a potential to stimulate both CH4 production and CH4 oxidation. Thus the net effect of N fertilization on CH4 emission from paddy rice fields most likely depends upon the counterbalance between the nitrogen-induced increases in CH4 production and CH4 oxidation, as a N excess may result in the inhibition of methane emission, whereas a N limitation may result in the stimulation of methane emission.
收录类别SCI
WOS关键词CARBON-DIOXIDE ENRICHMENT ; METHANE EMISSION ; NITROUS-OXIDE ; ORYZA-SATIVA ; FOREST SOILS ; OXIDATION ; PLANTS ; TEMPERATURE ; TRANSPORT ; GROWTH
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000223343000001
出版者AMER GEOPHYSICAL UNION
URI标识http://www.irgrid.ac.cn/handle/1471x/2559331
专题南京土壤研究所
通讯作者Xu, ZJ
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
3.Karlsruhe Res Ctr, Inst Climate & Meteorol Res, D-82467 Garmisch Partenkirchen, Germany
4.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Xu, ZJ,Zheng, XH,Wang, YS,et al. Effects of elevated CO2 and N fertilization on CH4 emissions from paddy rice fields[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2004,18(3):9.
APA Xu, ZJ.,Zheng, XH.,Wang, YS.,Han, SH.,Huang, Y.,...&Butterbach-Bahl, K.(2004).Effects of elevated CO2 and N fertilization on CH4 emissions from paddy rice fields.GLOBAL BIOGEOCHEMICAL CYCLES,18(3),9.
MLA Xu, ZJ,et al."Effects of elevated CO2 and N fertilization on CH4 emissions from paddy rice fields".GLOBAL BIOGEOCHEMICAL CYCLES 18.3(2004):9.

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来源:南京土壤研究所

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