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Effects of nitrogen fertilizer on CH4 emission from rice fields: multi-site field observations
Xie, Baohua1,2; Zheng, Xunhua1; Zhou, Zaixing1,2; Gu, Jiangxin1; Zhu, Bo3; Chen, Xin4; Shi, Yi4; Wang, Yiyong5; Zhao, Zhichun2,5; Liu, Chunyan1; Yao, Zhisheng1; Zhu, Jianguo6
Corresponding AuthorXunhua Zheng
2010
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume326Issue:1-2Pages:393-401
SubtypeArticle
AbstractThere is an ongoing discussion of the possible effects of nitrogen (N) application on methane (CH4) emission from rice fields. However, the Intergovernmental Panel on Climate Change (IPCC) methodologies for estimating the national inventory of CH4 emission from paddy rice production do not consider the effects of N addition. To assess the lack of knowledge about N addition effects on inventory estimates, we recently launched a multi-site observation campaign in major rice cultivation regions of China. The observations showed that, across various climate zones, the application of ammonium-based fertilizers at the commonly-adopted levels for fields in China (150 or 250 kg N ha(-1)) generally inhibited accumulative CH4 emission during rice season (by 28-30% on average) as compared to no N addition. An increase in application from the moderate level of 150 kg N ha(-1) to the high rate of 250 kg N ha(-1) did not significantly modify CH4 emission. Our results suggest that disregarding the effect of N fertilization by the IPCC methodologies may not significantly bias CH4 inventory estimates of China. In regions with much lower N addition levels, however, disregarding the effect of N fertilization may result in the underestimation of regional CH4 emission, since these emissions were mainly derived from studies in regions with relatively high N addition rates; There is an ongoing discussion of the possible effects of nitrogen (N) application on methane (CH4) emission from rice fields. However, the Intergovernmental Panel on Climate Change (IPCC) methodologies for estimating the national inventory of CH4 emission from paddy rice production do not consider the effects of N addition. To assess the lack of knowledge about N addition effects on inventory estimates, we recently launched a multi-site observation campaign in major rice cultivation regions of China. The observations showed that, across various climate zones, the application of ammonium-based fertilizers at the commonly-adopted levels for fields in China (150 or 250 kg N ha(-1)) generally inhibited accumulative CH4 emission during rice season (by 28-30% on average) as compared to no N addition. An increase in application from the moderate level of 150 kg N ha(-1) to the high rate of 250 kg N ha(-1) did not significantly modify CH4 emission. Our results suggest that disregarding the effect of N fertilization by the IPCC methodologies may not significantly bias CH4 inventory estimates of China. In regions with much lower N addition levels, however, disregarding the effect of N fertilization may result in the underestimation of regional CH4 emission, since these emissions were mainly derived from studies in regions with relatively high N addition rates.
KeywordAmmonium-based Inventory Biomass Oxidation
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11104-009-0020-3
WOS Subject ExtendedAgriculture ; Plant Sciences
Indexed BySCI
WOS KeywordMETHANE EMISSION ; PADDY SOILS ; OXIDATION ; PATTERNS ; CO2 ; MANAGEMENT ; OXIDE
Language英语
WOS SubjectAgronomy ; Plant Sciences ; Soil Science
WOS IDWOS:000272850200031
Funding OrganizationChinese Academy of Sciences(KZCX2-yw-204 ; National Science Foundation of China(40425010) ; European Union(IP 017841) ; Helmholtz-CAS Jointed Laboratory ENTRANCE ; KZCX3SW- 440)
Citation statistics
Cited Times:73[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5033
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Bounder Layer Phys & Atmo, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.CAS, IMHE, Chengdu 610041, Peoples R China
4.CAS, Inst Appl Ecol, Shenyang 110015, Peoples R China
5.CAS, NE Inst Geog or Agroecol, Changchun 130012, Peoples R China
6.CAS, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Xie, Baohua,Zheng, Xunhua,Zhou, Zaixing,et al. Effects of nitrogen fertilizer on CH4 emission from rice fields: multi-site field observations[J]. PLANT AND SOIL,2010,326(1-2):393-401.
APA Xie, Baohua.,Zheng, Xunhua.,Zhou, Zaixing.,Gu, Jiangxin.,Zhu, Bo.,...&Zhu, Jianguo.(2010).Effects of nitrogen fertilizer on CH4 emission from rice fields: multi-site field observations.PLANT AND SOIL,326(1-2),393-401.
MLA Xie, Baohua,et al."Effects of nitrogen fertilizer on CH4 emission from rice fields: multi-site field observations".PLANT AND SOIL 326.1-2(2010):393-401.
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