Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China

In order to explore the regional water–salt balance mechanism in Hetao Irrigation District, field experiments were conducted in 2018 and 2019 in the Heji canal study area. The SWAP model was calibrated and validated based on field experiments' observed data. The SWAP model was used to simulate...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Chengfu Yuan
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	hetao irrigation district saline wasteland soil salt concentration soil water content swap model 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/055f8c88a53e450bbd0180ed7e61ba29
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:055f8c88a53e450bbd0180ed7e61ba29
record_format	dspace
spelling	oai:doaj.org-article:055f8c88a53e450bbd0180ed7e61ba292021-11-06T10:07:45ZSimulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China1606-97491607-079810.2166/ws.2020.299https://doaj.org/article/055f8c88a53e450bbd0180ed7e61ba292021-09-01T00:00:00Zhttp://ws.iwaponline.com/content/21/6/2681https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798In order to explore the regional water–salt balance mechanism in Hetao Irrigation District, field experiments were conducted in 2018 and 2019 in the Heji canal study area. The SWAP model was calibrated and validated based on field experiments' observed data. The SWAP model was used to simulate soil water–salt dynamics in saline wasteland after calibration and validation. The results showed that model simulation results of soil water content and soil salt concentration agreed well with the measured values. Soil water content and soil salt concentration changed obviously under the effect of farmland irrigation in the crop growing period. Soil salt was accumulated in saline wasteland. The soil salt accumulation of each soil layer in saline wasteland was 0.164, 0.092, −0.890 and −1.261 mg/cm3, respectively. Soil water content gradually increased and soil salt concentration gradually decreased in the autumn irrigation period. Soil salt was leached in the saline wasteland. The soil salt accumulation of each soil layer in the saline wasteland was −1.011, −1.242, −1.218 and −1.335 mg/cm3, respectively. The saline wasteland became a drainage and salt drainage region for cultivated land. The saline wastelands had an obvious role in adjusting salt balance and maintaining salt dynamic balance in Hetao Irrigation District. HIGHLIGHTS Soil water–salt transport is concentrated in saline wasteland.; Soil water content and soil salt concentration changed obviously in crop growing period.; Soil salt was accumulated in saline wasteland in crop growing period.; Soil water content gradually increased and soil salt concentration gradually decreased in autumn irrigation period.; Saline wasteland became a drainage and salt drainage region.;Chengfu YuanIWA Publishingarticlehetao irrigation districtsaline wastelandsoil salt concentrationsoil water contentswap modelWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 6, Pp 2681-2690 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hetao irrigation district saline wasteland soil salt concentration soil water content swap model Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	hetao irrigation district saline wasteland soil salt concentration soil water content swap model Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Chengfu Yuan Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China
description	In order to explore the regional water–salt balance mechanism in Hetao Irrigation District, field experiments were conducted in 2018 and 2019 in the Heji canal study area. The SWAP model was calibrated and validated based on field experiments' observed data. The SWAP model was used to simulate soil water–salt dynamics in saline wasteland after calibration and validation. The results showed that model simulation results of soil water content and soil salt concentration agreed well with the measured values. Soil water content and soil salt concentration changed obviously under the effect of farmland irrigation in the crop growing period. Soil salt was accumulated in saline wasteland. The soil salt accumulation of each soil layer in saline wasteland was 0.164, 0.092, −0.890 and −1.261 mg/cm3, respectively. Soil water content gradually increased and soil salt concentration gradually decreased in the autumn irrigation period. Soil salt was leached in the saline wasteland. The soil salt accumulation of each soil layer in the saline wasteland was −1.011, −1.242, −1.218 and −1.335 mg/cm3, respectively. The saline wasteland became a drainage and salt drainage region for cultivated land. The saline wastelands had an obvious role in adjusting salt balance and maintaining salt dynamic balance in Hetao Irrigation District. HIGHLIGHTS Soil water–salt transport is concentrated in saline wasteland.; Soil water content and soil salt concentration changed obviously in crop growing period.; Soil salt was accumulated in saline wasteland in crop growing period.; Soil water content gradually increased and soil salt concentration gradually decreased in autumn irrigation period.; Saline wasteland became a drainage and salt drainage region.;
format	article
author	Chengfu Yuan
author_facet	Chengfu Yuan
author_sort	Chengfu Yuan
title	Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China
title_short	Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China
title_full	Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China
title_fullStr	Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China
title_full_unstemmed	Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China
title_sort	simulation soil water–salt dynamics in saline wasteland of yongji irrigation area in hetao irrigation district of china
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/055f8c88a53e450bbd0180ed7e61ba29
work_keys_str_mv	AT chengfuyuan simulationsoilwatersaltdynamicsinsalinewastelandofyongjiirrigationareainhetaoirrigationdistrictofchina
_version_	1718443774677352448

Simulation soil water–salt dynamics in saline wasteland of Yongji Irrigation Area in Hetao Irrigation District of China

Ejemplares similares