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Water-Use Efficiency of Crops in the Arid Area of the Middle Reaches of the Heihe River: Taking Zhangye City as an Example
Xiao, Xingyuan1,2; Fan, Limeng1; Li, Xiubin2; Tan, Minghong2; Jiang, Tao1; Zheng, Luqian2; Jiang, Fengrui3
2019-08-01
Source PublicationWATER
Volume11Issue:8Pages:12
Corresponding AuthorXiao, Xingyuan(xiaoxy_111@163.com)
AbstractThe 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.
Keywordwater-use efficiency CROPWAT model input-output model Zhangye City
DOI10.3390/w11081541
WOS KeywordMAIZE ; BASIN ; CHINA
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[91325302] ; Domestic Visiting Scholar Program for Young Backbone Teachers of Colleges and Universities in Shandong Province
Funding OrganizationNational Natural Science Foundation of China ; Domestic Visiting Scholar Program for Young Backbone Teachers of Colleges and Universities in Shandong Province
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000484561500016
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69654
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXiao, Xingyuan
Affiliation1.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
Recommended Citation
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]. WATER,2019,11(8):12.
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),12.
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):12.
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