干旱区生态环境知识资源中心(Arid): Optimizing the allocation of irrigation water for multiple crops based on the crop water allocation priority

Arid

DOI	10.1007/s00271-022-00792-0
	Optimizing the allocation of irrigation water for multiple crops based on the crop water allocation priority
	Gong, Juan; He, Liuyue; Liu, Xiuxia; Wang, Sufen
通讯作者	Wang, SF
来源期刊	IRRIGATION SCIENCE
ISSN	0342-7188
EISSN	1432-1319
出版年	2023
卷号	41 期号:1 页码:49-68
英文摘要	There is an urgent need to ensure regional food security and increase irrigation water productivity in response to water shortages in arid and semi-arid regions. Previous studies of the optimal allocation of irrigation water did not consider simultaneously optimizing across multiple crops or at different growth stages. This paper describes the development of an irrigation water optimization model that uses a crop water allocation priority (CWAP) model. The CWAP value was determined by quantifying the changes in three indicators: yield, economic benefits, and irrigation water productivity. Maximum yield, maximum economic benefits, and minimum irrigation shortage (at the critical crop and growth stage) were used as the objective functions of a non-linear multi-objective optimization model. The largest irrigation district in the northern arid area of China, Hetao Irrigation District (HID), was chosen to prototype this model. The optimization results, using CWAP, showed that yield, economic benefits, irrigation water productivity, and water productivity could be increased, respectively, by up to 13.38%, 13.40%, 2.30%, and 6.29%, for most crops when compared with optimization results without CWAP. Comparison of the optimized net irrigation quantities with the actual net irrigation quantities showed that optimization reduced water usage by up to 60.77% for wheat, 51.24% for corn, and 63.59% for sunflower. Blue water utilization under optimal irrigation conditions decreased by 1.12% for wheat, 2.91% for corn, and 9.91% for sunflower, compared with those in actual irrigation scenario. This method of optimizing irrigation water allocation in arid areas using CWAP provides decision-makers with accurate water-saving irrigation protocols that will reduce demand for water resources and promote sustainable agriculture.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000794877400001
WOS关键词	YELLOW-RIVER BASIN ; SOIL-MOISTURE ; SUNFLOWER ; YIELD ; SALINITY ; DISTRICT ; MAIZE ; HETAO ; MODEL ; CORN
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397068
推荐引用方式 GB/T 7714	Gong, Juan,He, Liuyue,Liu, Xiuxia,et al. Optimizing the allocation of irrigation water for multiple crops based on the crop water allocation priority[J],2023,41(1):49-68.
APA	Gong, Juan,He, Liuyue,Liu, Xiuxia,&Wang, Sufen.(2023).Optimizing the allocation of irrigation water for multiple crops based on the crop water allocation priority.IRRIGATION SCIENCE,41(1),49-68.
MLA	Gong, Juan,et al."Optimizing the allocation of irrigation water for multiple crops based on the crop water allocation priority".IRRIGATION SCIENCE 41.1(2023):49-68.