Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation

To solve the difficulty of observing the soil wetting pattern of vertical moistube irrigation, the HYDRUS-2D software is used to simulate wetting pattern data under different conditions. Based on the analysis of Origin 9.0 and summarizing the law of simulation data, an empirical model for predicting...

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Autores principales:	Yanwei Fan, Zhiwei Yang, Hujun Wei
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	hydrus-2d predictive model soil vertical moistube irrigation wetting pattern size Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/6f54f02ac3dd496fa9aafe8cb7070431
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spelling	oai:doaj.org-article:6f54f02ac3dd496fa9aafe8cb70704312021-11-06T07:04:44ZEstablishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation1606-97491607-079810.2166/ws.2020.326https://doaj.org/article/6f54f02ac3dd496fa9aafe8cb70704312021-02-01T00:00:00Zhttp://ws.iwaponline.com/content/21/1/331https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798To solve the difficulty of observing the soil wetting pattern of vertical moistube irrigation, the HYDRUS-2D software is used to simulate wetting pattern data under different conditions. Based on the analysis of Origin 9.0 and summarizing the law of simulation data, an empirical model for predicting wetting pattern size is constructed, with the reliability of the model verified by experimental data. The results show that the power function is used to fit the relationship between the size of wetting pattern and irrigation time. The power function exponent has small changes in three directions (vertical upward, horizontal, and vertical downward) of the moistube. Further analysis shows that the power function coefficient is in accordance with the power function relationship with soil-saturated hydraulic conductivity, the steady permeability of the moistube, and the difference between soil-saturated moisture content and initial moisture content. The average absolute error of statistical indicators of the built model is between 0.30 and 1.42 cm, the root mean square error is between 0.42 and 1.65 cm, and the Nash–Sutcliffe efficiency coefficient is not less than 0.93. The model has a good prediction effect and can provide a scientific basis for the design, operation, and management of the moistube irrigation engineering.Yanwei FanZhiwei YangHujun WeiIWA Publishingarticlehydrus-2dpredictive modelsoilvertical moistube irrigationwetting pattern sizeWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 1, Pp 331-343 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrus-2d predictive model soil vertical moistube irrigation wetting pattern size Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	hydrus-2d predictive model soil vertical moistube irrigation wetting pattern size Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Yanwei Fan Zhiwei Yang Hujun Wei Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
description	To solve the difficulty of observing the soil wetting pattern of vertical moistube irrigation, the HYDRUS-2D software is used to simulate wetting pattern data under different conditions. Based on the analysis of Origin 9.0 and summarizing the law of simulation data, an empirical model for predicting wetting pattern size is constructed, with the reliability of the model verified by experimental data. The results show that the power function is used to fit the relationship between the size of wetting pattern and irrigation time. The power function exponent has small changes in three directions (vertical upward, horizontal, and vertical downward) of the moistube. Further analysis shows that the power function coefficient is in accordance with the power function relationship with soil-saturated hydraulic conductivity, the steady permeability of the moistube, and the difference between soil-saturated moisture content and initial moisture content. The average absolute error of statistical indicators of the built model is between 0.30 and 1.42 cm, the root mean square error is between 0.42 and 1.65 cm, and the Nash–Sutcliffe efficiency coefficient is not less than 0.93. The model has a good prediction effect and can provide a scientific basis for the design, operation, and management of the moistube irrigation engineering.
format	article
author	Yanwei Fan Zhiwei Yang Hujun Wei
author_facet	Yanwei Fan Zhiwei Yang Hujun Wei
author_sort	Yanwei Fan
title	Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
title_short	Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
title_full	Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
title_fullStr	Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
title_full_unstemmed	Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
title_sort	establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/6f54f02ac3dd496fa9aafe8cb7070431
work_keys_str_mv	AT yanweifan establishmentandverificationofthepredictionmodelofsoilwettingpatternsizeinverticalmoistubeirrigation AT zhiweiyang establishmentandverificationofthepredictionmodelofsoilwettingpatternsizeinverticalmoistubeirrigation AT hujunwei establishmentandverificationofthepredictionmodelofsoilwettingpatternsizeinverticalmoistubeirrigation
_version_	1718443858720718848

Establishment and verification of the prediction model of soil wetting pattern size in vertical moistube irrigation

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