干旱区生态环境知识资源中心(Arid): Water-Saving Potential of Different Agricultural Management Practices in an Arid River Basin

Arid

DOI	10.3390/w14132072
	Water-Saving Potential of Different Agricultural Management Practices in an Arid River Basin
	Zhang, Wang; Tian, Yong; Feng, Yu; Liu, Jie; Zheng, Chunmiao
通讯作者	Liu, J
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:13
英文摘要	Water scarcity threatens food security in arid areas, highlighting the importance of water-saving agriculture for food production. Agricultural management practices are developed to improve water-use efficiency, and their water-saving effects are generally evaluated at the field scale rather than the regional scale. To figure out the regional water-saving potential of irrigation methods and mulching practices, the FAO AquaCrop model was first calibrated and validated at the three experimental stations. With aggregating spatial information, a distributed model was constructed and validated in a typical arid river basin of northwest China. Twelve combinations of soil mulching (plastic and straw) and irrigation methods (basin, furrow, drip, and subsurface drip) were simulated using the model to evaluate the effect of agricultural management practices on crop evapotranspiration (ET), crop water productivity, and regional water consumption. The results showed that soil mulching, advanced irrigation methods, and their combinations reduced noneffective soil evaporation (E) and the E/ET ratios and improved crop water productivity. Plastic mulching combined with subsurface drip irrigation is the most promising practice, increasing the crop water productivity of seed maize and spring wheat by 18.2% and 11.1% on average and reducing regional crop water consumption by 7.7% (75.0 million m(3)) and 7.4% (72.7 million m(3)), respectively. The reduction in irrigation water extraction ranged from 20.6% under furrow irrigation with straw mulching to 68.7% under subsurface drip irrigation with plastic mulching. This study quantitatively assessed the water-saving potential of soil mulching, irrigation methods, and their combinations to reduce agricultural water use, offering practical implications for the management and development of water-saving agriculture in arid areas.
英文关键词	AquaCrop model mulching technology drip irrigation seed maize spring wheat Heihe River Basin
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000824714800001
WOS关键词	SUBSURFACE DRIP IRRIGATION ; SIMULATE YIELD RESPONSE ; FAO CROP MODEL ; USE EFFICIENCY ; SOIL-WATER ; MAIZE YIELD ; FOOTPRINT REDUCTION ; MULCH ; PRODUCTIVITY ; PERFORMANCE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394801
推荐引用方式 GB/T 7714	Zhang, Wang,Tian, Yong,Feng, Yu,et al. Water-Saving Potential of Different Agricultural Management Practices in an Arid River Basin[J],2022,14(13).
APA	Zhang, Wang,Tian, Yong,Feng, Yu,Liu, Jie,&Zheng, Chunmiao.(2022).Water-Saving Potential of Different Agricultural Management Practices in an Arid River Basin.WATER,14(13).
MLA	Zhang, Wang,et al."Water-Saving Potential of Different Agricultural Management Practices in an Arid River Basin".WATER 14.13(2022).