Does actual cropland water consumption change with evaporation potential in the Lower Yellow River?

doi:10.1016/j.agee.2021.107468

	Does actual cropland water consumption change with evaporation potential in the Lower Yellow River?
	Sun, Zhigang 1,2,3,4; Li, Shiji 1,3; Zhu, Kangying 1,3; Yang, Ting 2,4; Shao, Changxiu 2,3,4
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	2021-08-15
卷号	316 页码:9
关键词	Actual crop water consumption Evaporation potential Water use efficiency North China Plain Winter wheat-summer maize cropping system
ISSN号	0167-8809
DOI	10.1016/j.agee.2021.107468
通讯作者	Shao, Changxiu(shaocx@igsnrr.ac.cn)
英文摘要	The North China Plain (NCP) is one of the most important regions for food production in China; however, the typical winter wheat-summer maize cropping system has created a continuous decline in groundwater levels, triggering serious ecological problems. Additionally, changes in the evaporation potential in the NCP have altered from decreasing to sharply increasing. Therefore, it is critical to understand the actual cropland water consumption (i.e., the actual evapotranspiration, AET) and crop water use efficiency (WUE) under this new trend. This understanding is significant for agricultural water management in the NCP. This study investigated the historical AET and WUE trends for the winter wheat-summer maize cropping system during 1992-2014. This investigation was based on a long-term AET dataset obtained using a large lysimeter from 1992 to 2014 at the Yucheng Comprehensive Experiment Station of the Chinese Academy of Sciences near the Lower Yellow River. The results showed that annual AET decreased pre-2008 and rebounded post-2008. The rebound rate of annual AET from 2008 to 2014 was more than three times the annual decrease rate of AET from 1992 to 2008. The significant increase in summer maize AET mainly contributed to the rebound of the annual AET after 2008. Following the changes in AET and crop yield, the annual WUE had evidently increased for 1992-2008 and sharply decreased from 2008 to 2014. The significant decrease in winter wheat WUE mainly contributed to the annual decrease in WUE post-2008. Climate change, agricultural management, and crop yields were observed to regulate the changes in AET and WUE. In the context of accelerating climate change and the increased frequency of extreme climatic events, strategies to improve WUE by the Lower Yellow River have been proposed, which may also be helpful in the NCP and similar regions worldwide.
资助项目	National Natural Science Foundation of China[31870421] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23050102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040303] ; Chinese Academy of Sciences[KJZD-SW-113]
WOS关键词	NORTH CHINA PLAIN ; USE EFFICIENCY ; CLIMATE-CHANGE ; WINTER-WHEAT ; PAN EVAPORATION ; SUMMER MAIZE ; CROPPING SYSTEMS ; GRAIN-YIELD ; EVAPOTRANSPIRATION
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000653013500007
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163905]
专题	中国科学院地理科学与资源研究所
通讯作者	Shao, Changxiu
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Shandong Dongying Inst Geog Sci, Dongying 257000, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, CAS Engn Lab Yellow River Delta Modern Agr, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Sun, Zhigang,Li, Shiji,Zhu, Kangying,et al. Does actual cropland water consumption change with evaporation potential in the Lower Yellow River?[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2021,316:9.
APA	Sun, Zhigang,Li, Shiji,Zhu, Kangying,Yang, Ting,&Shao, Changxiu.(2021).Does actual cropland water consumption change with evaporation potential in the Lower Yellow River?.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,316,9.
MLA	Sun, Zhigang,et al."Does actual cropland water consumption change with evaporation potential in the Lower Yellow River?".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 316(2021):9.