A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation

To improve the water application uniformity for sprinkler irrigation on sloping land, indoor tests were conducted on an artificial slope (slopes of 0, 0.05, 0.10 and 0.15) to evaluate the effects of two riser orientations, vertical (VO) and perpendicular (PO) to the slope, on the uniformity of sprin...

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Autores principales:	Xin Hui, Haijun Yan, Lin Zhang, Junying Chen
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	overlapped application uniformity radius of throw riser orientation sprinkler rotation uniformity water distribution 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/91a83dc19ca44e849a02bd964eeeb4ac
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id	oai:doaj.org-article:91a83dc19ca44e849a02bd964eeeb4ac
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spelling	oai:doaj.org-article:91a83dc19ca44e849a02bd964eeeb4ac2021-11-06T10:08:02ZA simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation1606-97491607-079810.2166/ws.2020.231https://doaj.org/article/91a83dc19ca44e849a02bd964eeeb4ac2021-09-01T00:00:00Zhttp://ws.iwaponline.com/content/21/6/2786https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798To improve the water application uniformity for sprinkler irrigation on sloping land, indoor tests were conducted on an artificial slope (slopes of 0, 0.05, 0.10 and 0.15) to evaluate the effects of two riser orientations, vertical (VO) and perpendicular (PO) to the slope, on the uniformity of sprinkler rotation, radius of throw, water distribution of an individual sprinkler and the overlapped water application uniformity (WAU). Compared with the VO, the PO could effectively improve the water distribution on sloping land and minimize the risk of soil erosion. Additionally, the PO was superior in the WAU, and a rectangular arrangement could dramatically enhance the WAU at smaller sprinkler spacing, while larger acceptable sprinkler spacing was accepted in a triangular arrangement. The riser orientation and sprinkler spacing had the most significant effect on the WAU, followed by the slope and sprinkler arrangement, suggesting that the adjustment of riser orientation or sprinkler spacing was helpful in improving the WAU. However, from the aspects of investment cost and installation convenience for irrigation projects, the method of PO was recommended. Therefore, when designing the sprinkler irrigation systems on the slope, choosing PO is the simplest and most effective way to achieve good irrigation uniformity. HIGHLIGHTS Riser perpendicular to the slope can obviously improve the water distribution on sloping land and minimize the risk of soil erosion.; The overlapped water application uniformity is superior for riser perpendicular to the slope than for a vertical riser.; Both the riser orientation and sprinkler spacing have the most significant effects on the overlapped water application uniformity.;Xin HuiHaijun YanLin ZhangJunying ChenIWA Publishingarticleoverlapped application uniformityradius of throwriser orientationsprinkler rotation uniformitywater distributionWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 6, Pp 2786-2798 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	overlapped application uniformity radius of throw riser orientation sprinkler rotation uniformity water distribution Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	overlapped application uniformity radius of throw riser orientation sprinkler rotation uniformity water distribution Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Xin Hui Haijun Yan Lin Zhang Junying Chen A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
description	To improve the water application uniformity for sprinkler irrigation on sloping land, indoor tests were conducted on an artificial slope (slopes of 0, 0.05, 0.10 and 0.15) to evaluate the effects of two riser orientations, vertical (VO) and perpendicular (PO) to the slope, on the uniformity of sprinkler rotation, radius of throw, water distribution of an individual sprinkler and the overlapped water application uniformity (WAU). Compared with the VO, the PO could effectively improve the water distribution on sloping land and minimize the risk of soil erosion. Additionally, the PO was superior in the WAU, and a rectangular arrangement could dramatically enhance the WAU at smaller sprinkler spacing, while larger acceptable sprinkler spacing was accepted in a triangular arrangement. The riser orientation and sprinkler spacing had the most significant effect on the WAU, followed by the slope and sprinkler arrangement, suggesting that the adjustment of riser orientation or sprinkler spacing was helpful in improving the WAU. However, from the aspects of investment cost and installation convenience for irrigation projects, the method of PO was recommended. Therefore, when designing the sprinkler irrigation systems on the slope, choosing PO is the simplest and most effective way to achieve good irrigation uniformity. HIGHLIGHTS Riser perpendicular to the slope can obviously improve the water distribution on sloping land and minimize the risk of soil erosion.; The overlapped water application uniformity is superior for riser perpendicular to the slope than for a vertical riser.; Both the riser orientation and sprinkler spacing have the most significant effects on the overlapped water application uniformity.;
format	article
author	Xin Hui Haijun Yan Lin Zhang Junying Chen
author_facet	Xin Hui Haijun Yan Lin Zhang Junying Chen
author_sort	Xin Hui
title	A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
title_short	A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
title_full	A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
title_fullStr	A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
title_full_unstemmed	A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
title_sort	simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/91a83dc19ca44e849a02bd964eeeb4ac
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A simplified method to improve water distribution and application uniformity for sprinkler irrigation on sloping land: adjustment of riser orientation

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