干旱区生态环境知识资源中心(Arid): Irrigation reduces the negative effect of global warming on winter wheat yield and greenhouse gas intensity

Arid

DOI	10.1016/j.scitotenv.2018.07.296
	Irrigation reduces the negative effect of global warming on winter wheat yield and greenhouse gas intensity
	Li, Jiazhen 1,2; Dong, Wenxu 1; Oenema, Oene 3; Chen, Tuo 1,2; Hu, Chunsheng 1; Yuan, Haijing 4; Zhao, Liying 1,2
通讯作者	Hu, Chunsheng
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	646 页码:290-299
英文摘要	Global warming may exacerbate drought, decrease crop yield and affect greenhouse gas (GHG) emissions in semi-arid regions. However, the interactive effects of increases in temperature and water availability on winter wheat yield and GHG emissions in semi-arid climates are not well-understood. Here, we report on a two-year field experiment that examined the effects of a mean soil temperature increase of similar to 2 degrees C (at 5 cm depth) with and without additional irrigation on wheat yield and GHG emissions. Infrared heaters were placed above the crop canopy at a height of 1.8 m to simulate warming. Fluxes of CH4, CO2 and N2O were measured using closed static chamber technique once per week during the wheat growing seasons. Warming decreased wheat yield by 28% in the relatively dry year of 2015, while supplemental irrigation nullified the warming effect completely. Warming did not alter the wheat yield significantly in the relatively wet year of 2016, but supplemental irrigation with no warming decreased the wheat yield by 25%. Warming increased CO2 emissions by 28% and CH4 uptake by 24% and tended to decrease N2O emissions. Supplemental irrigation increased N2O emissions but had little effect on CO2 emissions and CH4 uptake. Evidently, warming and supplemental irrigation had interactive effects on wheat yield, GHG emissions and GHG emissions intensity. Precision irrigation appears to be a means of simultaneously increasing wheat yield and reducing GHG emissions under warming conditions in semi-arid areas. (c) 2018 Published by Elsevier B.V.
英文关键词	Warming Irrigation Greenhouse gases Wheat yield Global warming potential Greenhouse gas intensity
类型	Article
语种	英语
国家	Peoples R China ; Netherlands
收录类别	SCI-E
WOS记录号	WOS:000445164800031
WOS关键词	NORTH CHINA PLAIN ; SOIL RESPIRATION ; CLIMATE-CHANGE ; FIELD MEASUREMENT ; METHANE EMISSION ; CROPPING SYSTEMS ; N2O EMISSIONS ; NITROGEN ; CARBON ; TEMPERATURE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218578
作者单位	1.Chinese Acad Sci, Key Lab Agr Water Resources, Hebei Lab Agr Water Saving, Ctr Agr Resources Res,Inst Genet & Dev Biol, 286 Huaizhong Rd, Shijiazhuang 050021, Hebei, Peoples R China; 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China; 3.Wageningen Univ & Res, Wageningen Environm Res, NL-6700 AA Wageningen, Netherlands; 4.Fujian Agr & Forestry Univ, Coll Resources & Environm, Fuzhou 350002, Peoples R China
推荐引用方式 GB/T 7714	Li, Jiazhen,Dong, Wenxu,Oenema, Oene,et al. Irrigation reduces the negative effect of global warming on winter wheat yield and greenhouse gas intensity[J],2019,646:290-299.
APA	Li, Jiazhen.,Dong, Wenxu.,Oenema, Oene.,Chen, Tuo.,Hu, Chunsheng.,...&Zhao, Liying.(2019).Irrigation reduces the negative effect of global warming on winter wheat yield and greenhouse gas intensity.SCIENCE OF THE TOTAL ENVIRONMENT,646,290-299.
MLA	Li, Jiazhen,et al."Irrigation reduces the negative effect of global warming on winter wheat yield and greenhouse gas intensity".SCIENCE OF THE TOTAL ENVIRONMENT 646(2019):290-299.