干旱区生态环境知识资源中心(Arid): Response of Liquid Water and Vapor Flow to Rainfall Events in Sandy Soil of Arid and Semi-Arid Regions

Arid

DOI	10.3390/agronomy13092424
	Response of Liquid Water and Vapor Flow to Rainfall Events in Sandy Soil of Arid and Semi-Arid Regions
	Lu, Ting; Zheng, Ce; Zhou, Bao; Wu, Jing; Wang, Xueke; Zhao, Yuan; Liu, Xiuhua; Yuan, Wenqian
通讯作者	Zheng, C
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2023
卷号	13 期号:9
英文摘要	In arid and semi-arid regions, rainfall takes on a critical significance to both agricultural and engineering construction activities, and the transport process and driving mechanism of soil water under rainfall conditions are in need of further investigation. To clarify the variations in soil moisture, temperature, and liquid and vapor flux under various rainfall scenarios, the Mu Us Sandy Land was selected as the study region, and a water-vapor-heat transport model was established using the Hydrus-1D software with in situ observed soil and meteorological data. The simulated results were in good agreement with the measured data during both the calibration and validation periods, suggesting that the model was accurate and applicable to the study region. The variations in the selected dry and rainy periods proved the significant effect of rainfall events on soil matric potential, temperature, and driving forces. When rainfall occurred, the hydraulic conductivity for liquid water rose by three to five orders of magnitude, driving the liquid water flow downward. In contrast, the vapor flux played a vital role in soil water movement, accounting for about 15% of the total water flux in the shallow layer when the soil was dry, while it became non-significant during rainy periods due to the reduction in hydraulic conductivity for vapor and the temperature gradient. These results clarified the mechanisms of soil liquid water and vapor movement in arid areas, which could provide scientific support for future studies on vegetation restoration and ecosystem sustainability in ecologically fragile areas.
英文关键词	soil water flux vapor flow rainfall event Hydrus-1D model arid and semi-arid regions
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:001071155300001
WOS关键词	FREEZE-THAW CYCLE ; HEAT-TRANSPORT ; HYDRAULIC CONDUCTIVITY ; COUPLED WATER ; FROZEN SOIL ; VADOSE ZONE ; EVAPORATION ; DYNAMICS ; MOISTURE ; DESERT
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395226
推荐引用方式 GB/T 7714	Lu, Ting,Zheng, Ce,Zhou, Bao,et al. Response of Liquid Water and Vapor Flow to Rainfall Events in Sandy Soil of Arid and Semi-Arid Regions[J],2023,13(9).
APA	Lu, Ting.,Zheng, Ce.,Zhou, Bao.,Wu, Jing.,Wang, Xueke.,...&Yuan, Wenqian.(2023).Response of Liquid Water and Vapor Flow to Rainfall Events in Sandy Soil of Arid and Semi-Arid Regions.AGRONOMY-BASEL,13(9).
MLA	Lu, Ting,et al."Response of Liquid Water and Vapor Flow to Rainfall Events in Sandy Soil of Arid and Semi-Arid Regions".AGRONOMY-BASEL 13.9(2023).