Infiltration reduction characteristics and a simplified calculation model of film hole irrigation during interference infiltration*

doi:10.1002/ird.2631

	Infiltration reduction characteristics and a simplified calculation model of film hole irrigation during interference infiltration*
	Fan, Yanwei; Shi, Wen; Shao, Xiaoxia; Zhang, Changyan; Yin, Weifan
刊名	IRRIGATION AND DRAINAGE
	2021-07
卷号	71 期号:1 页码:35-47
关键词	film hole interference irrigation film hole irrigation HYDRUS-2D infiltration reduction predictive model
ISSN号	1531-0353
DOI	10.1002/ird.2631
英文摘要	The infiltration types of film hole irrigation (FHI) can be divided into film hole free infiltration (FHFI) and film hole interference infiltration (FHII). Numerical simulations were carried out with HYDRUS to investigate the influence of soil texture (ST), film hole diameter (D), film hole spacing (S) and water depth above the film hole (H) on the cumulative infiltration under two infiltration types of FHFI and FHII. The results showed that the amount of FHII was reduced significantly compared to that of FHFI. ST, D and S are the dominant factors affecting the infiltration reduction volume (Delta I). The relationship between Delta I and the time after interference (t - t(0)) is a proportional function (R-2 >= 0.96), and its proportional coefficient has a good power function relationship with D and S. The power function coefficients have large differences for different ST, and the range of variation is 0.1-191, whereas there is little difference between the power function index of D and S; the average values were 2.6 and -2.5, respectively. A simplified calculation model of infiltration reduction was established, and the estimation accuracy was high (RMSE = 0.017 L, EF = 0.980). This research can provide a reference for the calculation of the irrigation water volume of the FHI.
WOS研究方向	Agriculture ; Water Resources
语种	英语
出版者	WILEY
WOS记录号	WOS:000672096500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148667]
专题	能源与动力工程学院
作者单位	Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Fan, Yanwei,Shi, Wen,Shao, Xiaoxia,et al. Infiltration reduction characteristics and a simplified calculation model of film hole irrigation during interference infiltration*[J]. IRRIGATION AND DRAINAGE,2021,71(1):35-47.
APA	Fan, Yanwei,Shi, Wen,Shao, Xiaoxia,Zhang, Changyan,&Yin, Weifan.(2021).Infiltration reduction characteristics and a simplified calculation model of film hole irrigation during interference infiltration*.IRRIGATION AND DRAINAGE,71(1),35-47.
MLA	Fan, Yanwei,et al."Infiltration reduction characteristics and a simplified calculation model of film hole irrigation during interference infiltration*".IRRIGATION AND DRAINAGE 71.1(2021):35-47.