干旱区生态环境知识资源中心(Arid): Water-Use Efficiency of Crops in the Arid Area of the Middle Reaches of the Heihe River: Taking Zhangye City as an Example

Arid

DOI	10.3390/w11081541
	Water-Use Efficiency of Crops in the Arid Area of the Middle Reaches of the Heihe River: Taking Zhangye City as an Example
	Xiao, Xingyuan 1,2; Fan, Limeng 1; Li, Xiubin 2; Tan, Minghong 2; Jiang, Tao 1; Zheng, Luqian 2; Jiang, Fengrui 3
通讯作者	Xiao, Xingyuan
来源期刊	WATER
EISSN	2073-4441
出版年	2019
卷号	11 期号:8
英文摘要	The middle reaches of the Heihe River are an important food base in the arid regions of Northwest China. The agricultural water consumption in this region accounts for about 90% of the total water consumption. The shortage of water resources is the primary reason for restricting agricultural development. Therefore, studying the efficiency of agricultural water use is essential to improving the effective use of water resources. Under the premise of considering agricultural water saving, we improved the water efficiency model from the perspective of pure agricultural income that farmers are more concerned about. In this study, we took Zhangye City in the middle reaches of the Heihe River as an example, based on meteorological crop data and farmer survey data. Then, we used the input-output method to quantitatively analyze the net income of the crops in Zhangye City. We used the CROPWAT model to calculate the water demand of crops during the growing season. Lastly, we used the improved water-use efficiency (WUE) model to analyze WUE differences of crops in the study area. We reached the following conclusions: (1) among the six crops in the study area, the net profit of seed corn was 20,520 yuan/ha, followed by field corn, 11,700 yuan/ha, then followed by potato, rapeseed, wheat, and barley; (2) the maximum water requirement for the crop growth period was 597.2 mm for field corn, followed by 577.3 mm for seed corn, then followed by rapeseed, wheat, barley, and potato; (3) among the six crops, the WUE calculated using the water efficiency model before and after improvement had obvious differences. The WUE calculated using the original model reached 9.03 yuan/m(3) for potato, followed by 6.33 yuan/m(3) for seed corn. The WUE calculated using the improved model reached 3.44 yuan/m(3) for seed corn, which is the maximum, followed by potato with 2.25 yuan/m(3). Considering the agricultural water saving and crop yields, we propose to properly expand the cultivation of seed corn and potato in the middle reaches of the Heihe River. This would be more conducive to achieving a win-win situation for water conservation and revenue.
英文关键词	water-use efficiency CROPWAT model input-output model Zhangye City
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000484561500016
WOS关键词	MAIZE ; BASIN ; CHINA
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219239
作者单位	1.Shandong Univ Sci & Technol, Coll Geomat, Qingdao 266590, Shandong, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 3.Weifang Middle Sch, Weifang 261041, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Xingyuan,Fan, Limeng,Li, Xiubin,et al. Water-Use Efficiency of Crops in the Arid Area of the Middle Reaches of the Heihe River: Taking Zhangye City as an Example[J]. 中国科学院地理科学与资源研究所,2019,11(8).
APA	Xiao, Xingyuan.,Fan, Limeng.,Li, Xiubin.,Tan, Minghong.,Jiang, Tao.,...&Jiang, Fengrui.(2019).Water-Use Efficiency of Crops in the Arid Area of the Middle Reaches of the Heihe River: Taking Zhangye City as an Example.WATER,11(8).
MLA	Xiao, Xingyuan,et al."Water-Use Efficiency of Crops in the Arid Area of the Middle Reaches of the Heihe River: Taking Zhangye City as an Example".WATER 11.8(2019).