干旱区生态环境知识资源中心(Arid): Numerical investigation of wetting front migration and soil water distribution under vertical line source irrigation with different influencing factors

Arid

DOI	10.2166/ws.2021.054
	Numerical investigation of wetting front migration and soil water distribution under vertical line source irrigation with different influencing factors
	Fan, Yanwei; Ma, Liangjun; Wei, Hujun; Zhu, Pengcheng
通讯作者	Fan, YW (corresponding author), Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China.
来源期刊	WATER SUPPLY
ISSN	1606-9749
EISSN	1607-0798
出版年	2021
英文摘要	Vertical line source irrigation (VLSI) is an underground irrigation method suitable for deep-rooted plants. Understanding the characteristics of the soil wetting body of the VLSI was the key to designing this irrigation system. On the basis of experimental verification of the reliability of the HYDRUS simulation results of VLSI under the conditions of soil texture (ST), initial water content (theta(i)), line source buried depth (B), line source diameter (D) and line source length (L), numerical studies of the migration law of the wetting front of VLSI and the distribution characteristics of soil moisture were performed. The wetting front migration (WFM) was mainly influenced by ST, theta(i), D and L (P < 0.05), while B had little effect on WFM (P > 0.05). The shape of the soil wetting body changed little under different influencing factors. The water content contour was approximately 'ellipsoidal' around the line source. The soil moisture near the line source was close to the saturated moisture content. The moisture content around the line source gradually decreased outward, and the contour lines gradually became dense. According to the simulation results, a prediction model of multiple factors influencing the migration process of the VLSI wetting front was established. The predicted value was in good agreement with the measured value. The results of this research could provide a theoretical basis for further optimizing the combination of VLSI and irrigation elements.
英文关键词	HYDRUS-2D numerical simulation soil water distribution vertical line source irrigation wetting front migration
类型	Article ; Early Access
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000634806700001
WOS关键词	DRIP IRRIGATION ; USE EFFICIENCY ; HYDRAULIC CONDUCTIVITY ; PATTERNS ESTIMATION ; SURFACE DRIP ; ARID REGION ; ADOPTION ; SYSTEMS ; ROOT ; EVAPORATION
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS研究方向	Engineering ; 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/2XILL650/352487
作者单位	[Fan, Yanwei; Ma, Liangjun; Wei, Hujun; Zhu, Pengcheng] Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Fan, Yanwei,Ma, Liangjun,Wei, Hujun,et al. Numerical investigation of wetting front migration and soil water distribution under vertical line source irrigation with different influencing factors[J],2021.
APA	Fan, Yanwei,Ma, Liangjun,Wei, Hujun,&Zhu, Pengcheng.(2021).Numerical investigation of wetting front migration and soil water distribution under vertical line source irrigation with different influencing factors.WATER SUPPLY.
MLA	Fan, Yanwei,et al."Numerical investigation of wetting front migration and soil water distribution under vertical line source irrigation with different influencing factors".WATER SUPPLY (2021).