Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching

Numerical simulation can help understanding water- and heat-flow systems through plastic-mulched soils. An effective simulation approach is crucial to know the role of plastic mulch in a soil ecosystem, which can save water in agriculture. A field experiment was conducted at Gifu University in a rai...

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Autores principales:	Mohammad Abdul Kader, Kimihito Nakamura, Masateru Senge, Mohammad Abdul Mojid
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	film mulching heat transport hydrus-2d soil hydraulic function 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/e3cd26814afd40ffb21e7e599638386f
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spelling	oai:doaj.org-article:e3cd26814afd40ffb21e7e599638386f2021-11-06T10:07:37ZTwo-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching1606-97491607-079810.2166/ws.2021.095https://doaj.org/article/e3cd26814afd40ffb21e7e599638386f2021-09-01T00:00:00Zhttp://ws.iwaponline.com/content/21/6/2615https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Numerical simulation can help understanding water- and heat-flow systems through plastic-mulched soils. An effective simulation approach is crucial to know the role of plastic mulch in a soil ecosystem, which can save water in agriculture. A field experiment was conducted at Gifu University in a rainfed soybean cultivation under plastic mulch and bare soil treatments to clarify the soil water and heat flow mechanism. Furthermore, the two-dimensional numerical software HYDRSUS-2D model with different boundaries at the soil surface was used to simulate water and heat flows. Firstly, soil hydraulic parameters were estimated by inverse solution using laboratory-measured data and then coupled soil-water and heat flows were simulated by optimizing soil thermal parameters by inverse solution. The HYDRUS-2D model simulated water and heat flow through the root zone depths satisfactorily. The root-mean square error (RMSE) was 0.015–0.030, and 0.046–0.055 cm3 cm−3 for the plastic mulch, and bare soil, respectively, in estimating soil moisture and 0.66–1.28, and 0.70–1.54 °C, respectively in estimating soil temperature. Water infiltration was 61% lower in the plastic-mulched soil, which reduced soil evaporation as well as soil-moisture storage changes compared to bare soil. This study can be applied to design and manage different plastic mulching patterns in rain-fed crop cultivation. HIGHLIGHTS HYDRUS-2D simulated coupled flow of water and heat through plastic-mulched soil.; Plastic mulch reduced soil evaporation compared to bare soil.; Plastic mulch decreased soil moisture storage compared to bare soil.;Mohammad Abdul KaderKimihito NakamuraMasateru SengeMohammad Abdul MojidIWA Publishingarticlefilm mulchingheat transporthydrus-2dsoil hydraulic functionWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 6, Pp 2615-2632 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	film mulching heat transport hydrus-2d soil hydraulic function Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	film mulching heat transport hydrus-2d soil hydraulic function Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Mohammad Abdul Kader Kimihito Nakamura Masateru Senge Mohammad Abdul Mojid Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
description	Numerical simulation can help understanding water- and heat-flow systems through plastic-mulched soils. An effective simulation approach is crucial to know the role of plastic mulch in a soil ecosystem, which can save water in agriculture. A field experiment was conducted at Gifu University in a rainfed soybean cultivation under plastic mulch and bare soil treatments to clarify the soil water and heat flow mechanism. Furthermore, the two-dimensional numerical software HYDRSUS-2D model with different boundaries at the soil surface was used to simulate water and heat flows. Firstly, soil hydraulic parameters were estimated by inverse solution using laboratory-measured data and then coupled soil-water and heat flows were simulated by optimizing soil thermal parameters by inverse solution. The HYDRUS-2D model simulated water and heat flow through the root zone depths satisfactorily. The root-mean square error (RMSE) was 0.015–0.030, and 0.046–0.055 cm3 cm−3 for the plastic mulch, and bare soil, respectively, in estimating soil moisture and 0.66–1.28, and 0.70–1.54 °C, respectively in estimating soil temperature. Water infiltration was 61% lower in the plastic-mulched soil, which reduced soil evaporation as well as soil-moisture storage changes compared to bare soil. This study can be applied to design and manage different plastic mulching patterns in rain-fed crop cultivation. HIGHLIGHTS HYDRUS-2D simulated coupled flow of water and heat through plastic-mulched soil.; Plastic mulch reduced soil evaporation compared to bare soil.; Plastic mulch decreased soil moisture storage compared to bare soil.;
format	article
author	Mohammad Abdul Kader Kimihito Nakamura Masateru Senge Mohammad Abdul Mojid
author_facet	Mohammad Abdul Kader Kimihito Nakamura Masateru Senge Mohammad Abdul Mojid
author_sort	Mohammad Abdul Kader
title	Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
title_short	Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
title_full	Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
title_fullStr	Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
title_full_unstemmed	Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
title_sort	two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/e3cd26814afd40ffb21e7e599638386f
work_keys_str_mv	AT mohammadabdulkader twodimensionalnumericalsimulationsofsoilwaterandheatflowinarainfedsoybeanfieldunderplasticmulching AT kimihitonakamura twodimensionalnumericalsimulationsofsoilwaterandheatflowinarainfedsoybeanfieldunderplasticmulching AT masaterusenge twodimensionalnumericalsimulationsofsoilwaterandheatflowinarainfedsoybeanfieldunderplasticmulching AT mohammadabdulmojid twodimensionalnumericalsimulationsofsoilwaterandheatflowinarainfedsoybeanfieldunderplasticmulching
_version_	1718443827061063680

Two-dimensional numerical simulations of soil-water and heat flow in a rainfed soybean field under plastic mulching

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