The optimization of wheat yield through adaptive crop management in a changing climate: evidence from China

doi:10.1002/jsfa.10993

	The optimization of wheat yield through adaptive crop management in a changing climate: evidence from China
	Liu, Yujie 1,2; Zhang, Jie 1,2; Ge, Quansheng 1,2
刊名	JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
	2020-12-29
页码	10
关键词	wheat yield crop management climate change China
ISSN号	0022-5142
DOI	10.1002/jsfa.10993
通讯作者	Liu, Yujie(liuyujie@igsnrr.ac.cn)
英文摘要	BACKGROUND Adaptive crop management is critical to food security in a changing climate, but the respective contributions of climate change and crop management to yields remain unclear. Thus, we distinguished and quantified the respective contribution of climate change and crop management on wheat yield between 1981 and 2018 in China, using first-difference multivariate regression model. RESULTS Wheat production in China has increased over the past four decades. Under the sole impact of climate change, wheat yield generally decreased (-5.45 to +1.09% decade(-1)). Crop management increased the wheat yield from 7.11 to 19.94% decade(-1). Sensitivities of wheat yield to climatic variables (average temperature, accumulated sunshine hours, accumulated precipitation) were spatially heterogeneous; notably, in spring-wheat planting areas, wheat yield was more susceptible to the negative impact of warming. In terms of relative contribution, the contribution of climate change to spring wheat yield was -24.08% to -5.41%, and the contribution to winter wheat was -4.98% to +34.69%. Crop management had a positive contribution to all wheat-growing areas (65.31-96.84%). CONCLUSION Crop management had a greater effect on wheat yield than climate change did. Among the three climatic variables investigated, average temperature had the dominant effect on wheat yield change; the impact of precipitation was minimal but mostly negative. The results provide insight regarding the contribution of climate change and crop management to wheat yield; adaptation measures may be more effective in planting areas where crop management contributes more, which will help stakeholders optimize crop management and adaptation strategies. (c) 2020 Society of Chemical Industry
资助项目	National Natural Science Foundation of China[41671037] ; Youth Innovation Promotion Association, CAS[2016049] ; Program for 'Kezhen' Excellent Talents in IGSNRR, CAS[2017RC101] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC005]
WOS关键词	WINTER-WHEAT ; CHANGE IMPACTS ; WARMING TEMPERATURES ; PHENOLOGICAL TRENDS ; GROWING-SEASON ; SPRING MAIZE ; RICE ; RESPONSES ; CULTIVAR ; GROWTH
WOS研究方向	Agriculture ; Chemistry ; Food Science & Technology
语种	英语
出版者	WILEY
WOS记录号	WOS:000603318600001
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Program for 'Kezhen' Excellent Talents in IGSNRR, CAS ; Key Research Program of Frontier Sciences, CAS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137716]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Yujie
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yujie,Zhang, Jie,Ge, Quansheng. The optimization of wheat yield through adaptive crop management in a changing climate: evidence from China[J]. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE,2020:10.
APA	Liu, Yujie,Zhang, Jie,&Ge, Quansheng.(2020).The optimization of wheat yield through adaptive crop management in a changing climate: evidence from China.JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE,10.
MLA	Liu, Yujie,et al."The optimization of wheat yield through adaptive crop management in a changing climate: evidence from China".JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE (2020):10.