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	Tillage and crop residue management significantly affects N-trace gas emissions during the non-rice season of a subtropical rice-wheat rotation
	Yao, Zhisheng1; Zheng, Xunhua1; Xie, Baohua1; Mei, Baoling1; Wang, Rui1; Butterbach-Bahl, Klaus2; Zhu, Jianguo3; Yin, Rui3
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2009-10-01
卷号	41期号:10页码:2131-2140
关键词	Nitrous oxide Nitric oxide Tillage Crop residue Emission factor
ISSN号	0038-0717
DOI	10.1016/j.soilbio.2009.07.025
通讯作者	Zheng, Xunhua(xunhua.zheng@post.iap.ac.cn)
英文摘要	Field operations of tillage and residue incorporation could have potentially important influences on N-trace gas fluxes, though poorly quantified. Here we studied the effects of straw incorporation in the preceding rice season and no-tillage prior to wheat sowing on nitric oxide (NO) and nitrous oxide (N2O) emissions during the non-rice period of a typical rice-wheat rotation in the Yangtze River Delta. Compared to conventional management practice (no straw incorporation along with rotary harrowing tillage to 10 cm before wheat sowing), straw incorporation alone decreased cumulative N2O emissions over the entire non-rice period by 32% (1.53 vs. 2.24 kg N ha(-1), P < 0.05) but did not affect NO emissions (0.88 vs. 0.87 kg N ha(-1)). In contrast, no-tillage alone increased N2O emissions by 75% (P < 0.05) while reducing NO emissions by 48% (P < 0.01). Combination of no-tillage and straw incorporation led to no change in N2O emissions but a reduction in NO emissions compared to the conventional management regime. The direct N2O emission factors (EF(d)s) of applied nitrogen fertilizers during the non-rice season ranged from 0.29% to 1.35% with a coefficient of variation (CV) as large as 68% among the investigated management regimes. The EF(d)s for NO ranged from 0.13% to 0.32% with a CV of 50%. Adoption of these new EFds will allow us to account for management effects on N-trace gas emissions when calculating emission inventories. Nevertheless, it is noteworthy that the uncertainty remains high, since the effects of soil properties such as texture or pH on management practices are not yet well defined. (C) 2009 Elsevier Ltd. All rights reserved.
收录类别	SCI
WOS关键词	NITROUS-OXIDE EMISSIONS ; NON-WATERLOGGED PERIOD ; SANDY LOAM SOIL ; NITRIC-OXIDE ; N2O FLUXES ; CARBON-DIOXIDE ; AGRICULTURAL FIELDS ; NUTRIENT-UPTAKE ; FERTILIZER-N ; DENITRIFICATION
WOS研究方向	Agriculture
WOS类目	Soil Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000271047800015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558792
专题	南京土壤研究所
通讯作者	Zheng, Xunhua
作者单位	1.Chinese Acad Sci, State Key Lab Atmospher Boundary Layer Phys & Atm, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Karlsruhe Res Ctr, Inst Meteorol & Climate Res, D-82467 Garmisch Partenkirchen, Germany 3.Chinese Acad Sci, Nanjing Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 21008, Peoples R China
推荐引用方式 GB/T 7714	Yao, Zhisheng,Zheng, Xunhua,Xie, Baohua,et al. Tillage and crop residue management significantly affects N-trace gas emissions during the non-rice season of a subtropical rice-wheat rotation[J]. SOIL BIOLOGY & BIOCHEMISTRY,2009,41(10):2131-2140.
APA	Yao, Zhisheng.,Zheng, Xunhua.,Xie, Baohua.,Mei, Baoling.,Wang, Rui.,...&Yin, Rui.(2009).Tillage and crop residue management significantly affects N-trace gas emissions during the non-rice season of a subtropical rice-wheat rotation.SOIL BIOLOGY & BIOCHEMISTRY,41(10),2131-2140.
MLA	Yao, Zhisheng,et al."Tillage and crop residue management significantly affects N-trace gas emissions during the non-rice season of a subtropical rice-wheat rotation".SOIL BIOLOGY & BIOCHEMISTRY 41.10(2009):2131-2140.

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