干旱区生态环境知识资源中心(Arid): Spatial-temporal variation in irrigation water requirement for the winter wheat-summer maize rotation system since the 1980s on the North China Plain

Arid

DOI	10.1016/j.agwat.2019.01.004
	Spatial-temporal variation in irrigation water requirement for the winter wheat-summer maize rotation system since the 1980s on the North China Plain
	Wu, Dong 1,2; Fang, Shibo 2,3; Li, Xuan 2; He, Di 2; Zhu, Yongchao 2; Yang, Zaiqiang 3; Xu, Jiaxin 4; Wu, Yingjie 2
通讯作者	Fang, Shibo
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	214 页码:78-86
英文摘要	The irrigation water requirement (IR) is crucial for optimizing agricultural water management and reallocation and for adjusting the planting structure. Based on the datasets derived from 277 meteorological stations and 42 agro-meteorological stations from 1980 to 2012, the simplified water balance equation was employed to estimate the IR in the winter wheat-summer maize rotation system. The results indicated that, for the two crops, the crop coefficients varied with time and space at different growth stages, with low or moderate variability levels. The average values of K-cini K-cmid and K-cend were 0.69, 1.17, 0.34 and 0.76, 1.13, 0.43 for winter wheat and summer maize, respectively. The region located to the most of northern parts of the Yellow River had reduced precipitation and increased reference evapotranspiration (ETo) during the rotation cycle; moreover, in the southern part of this region, the precipitation increased significantly with distinctly decreased ETo. In the North China Plain (NCP), the IR for the winter wheat, summer maize and rotation cycle all had no significant trend change, for which the multi-year average values were 341.1, 250.5 and 592.5 mm, respectively. The region with higher IR was primarily located in northern Shandong and the most of northern parts of the Yellow River, where the IR level was remarkably aggravated in dry seasons. Additionally, the IR increased in the northern NCP region and in the junction area between Hebei and Shandong, and IR decreased with a trend of 10 mm decade(-1) in other areas. In addition, the magnitude of the station and time intervals for abrupt change of IR varied with different growing seasons.
英文关键词	Rotation cycle Crop coefficient Water balance IR Dry season Wet season
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000458592700009
WOS关键词	TEMPERATE DESERT STEPPE ; CLIMATE-CHANGE ; REFERENCE EVAPOTRANSPIRATION ; CROP COEFFICIENT ; INNER-MONGOLIA ; SPATIOTEMPORAL VARIABILITY ; DROUGHT CHARACTERISTICS ; MAINLAND CHINA ; PRECIPITATION ; IMPACT
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214001
作者单位	1.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Nanjing 210044, Jiangsu, Peoples R China; 2.Chinese Acad Meteorol Sci, State Key Lab Sever Weather, Beijing 100081, Peoples R China; 3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China; 4.Chengdu Univ Technol, Coll Earth Sci, Chengdu 610000, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Wu, Dong,Fang, Shibo,Li, Xuan,et al. Spatial-temporal variation in irrigation water requirement for the winter wheat-summer maize rotation system since the 1980s on the North China Plain[J]. 南京信息工程大学,2019,214:78-86.
APA	Wu, Dong.,Fang, Shibo.,Li, Xuan.,He, Di.,Zhu, Yongchao.,...&Wu, Yingjie.(2019).Spatial-temporal variation in irrigation water requirement for the winter wheat-summer maize rotation system since the 1980s on the North China Plain.AGRICULTURAL WATER MANAGEMENT,214,78-86.
MLA	Wu, Dong,et al."Spatial-temporal variation in irrigation water requirement for the winter wheat-summer maize rotation system since the 1980s on the North China Plain".AGRICULTURAL WATER MANAGEMENT 214(2019):78-86.