干旱区生态环境知识资源中心(Arid): Sap flow characteristics and water demand prediction of cash crop in hyper-arid areas

Arid

DOI	10.1016/j.agwat.2024.108767
	Sap flow characteristics and water demand prediction of cash crop in hyper-arid areas
	Liu, Yunfei; Gui, Dongwei; Chen, Xiaoping; Liu, Qi; Zeng, Fanjiang
通讯作者	Gui, DW
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2024
卷号	295
英文摘要	Crop sap flow is a critical indicator of crop water demand, and predicting its variation trend is essential for adjusting agricultural planting structure and managing water resource in hyper-arid areas. Presently, research on crop sap flow in hyper-arid areas faces limitations due to inadequate meteorological data and restricted monitoring duration, leading to imprecise assessments of environmental impacts on future crop sap flow. Consequently, this hinders effective irrigation scheduling and oasis sustainable development policy. This study analyzed the sap flow changes characteristics of two economic crops (red jujube and walnut) at different time scales in the oasis in the south of Tarim Basin from 2017 to 2021 and the relationship between four environmental factors (solar radiation, temperature, relative humidity and vapor pressure deficit) and the sap flow of red jujube and walnut. By using the Random Forest (RF) model and the future climate data, the sap flow of the two economic crops from 2020 to 2100 was predicted. The results showed that: (1) walnut had a longer daily peak sap flow duration compared to red jujube, whereas red jujube showed a longer monthly peak sap flow duration; (2) in hyper-arid areas, the moisture and temperature directly influenced crop sap flow, while other environmental factor affected these two factors; (3) with the temperature increases, the water demand of red jujube and walnut in Cele Oasis will exceed local water resources carrying capacity. To achieve sustainable development of oasis, it is vital to consider future climatic changes in planning the expansion and crop structure.
英文关键词	Hyper-arid areas Sap flow Cash crop Environmental factor Global warming
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001221842000001
WOS关键词	MANAGEMENT ; BASIN
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/2XILL650/402654
推荐引用方式 GB/T 7714	Liu, Yunfei,Gui, Dongwei,Chen, Xiaoping,et al. Sap flow characteristics and water demand prediction of cash crop in hyper-arid areas[J],2024,295.
APA	Liu, Yunfei,Gui, Dongwei,Chen, Xiaoping,Liu, Qi,&Zeng, Fanjiang.(2024).Sap flow characteristics and water demand prediction of cash crop in hyper-arid areas.AGRICULTURAL WATER MANAGEMENT,295.
MLA	Liu, Yunfei,et al."Sap flow characteristics and water demand prediction of cash crop in hyper-arid areas".AGRICULTURAL WATER MANAGEMENT 295(2024).