Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions

This research aims at assessing the impact of drought (in the form of original and modified reconnaissance drought indices (ORDI and MRDI)) on water productivity of rainfed winter wheat in some arid and semi-arid regions of Iran. It focuses on different timescales of drought to determine which perio...

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Autores principales:	Mohammad Mehdi Moghimi, Ali Shabani, Abdol Rasoul Zarei
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	effective precipitation generalized estimating equations meteorological drought indices water productivity winter wheat Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/5093f88685e7466f943679005829bf0a
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spelling	oai:doaj.org-article:5093f88685e7466f943679005829bf0a2021-11-09T23:59:46ZEffect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions2040-22442408-935410.2166/wcc.2021.149https://doaj.org/article/5093f88685e7466f943679005829bf0a2021-11-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/7/3200https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354This research aims at assessing the impact of drought (in the form of original and modified reconnaissance drought indices (ORDI and MRDI)) on water productivity of rainfed winter wheat in some arid and semi-arid regions of Iran. It focuses on different timescales of drought to determine which period of the year had the greatest significant impact. RDI was modified using the Food and Agriculture Organization of the United Nation method (FAO) (MRDI-1), US Bureau of Reclamation (USBR) (MRDI-2), the Simplified version of Soil Conservation Service of the US Department of Agriculture method (USDA-SCS-simplified) (MRDI-3), and the CROPWAT version of USDA-SCS method (USDA-SCS CROPWAT) (MRDI-4). Results showed that in Tabriz and Zanjan stations, 3-month scale of MRDI-2; in Ghazvin, Arak, and Kerman stations, 6-month scale of MRDI-4; in Sanandaj station, 12-month timescale of MRDI-3; and in Shiraz stations, 1-month timescale of MRDI-1 resulted in the highest values of correlation coefficients. According to the goodness-of-fit parameters, in Tabriz and Zanjan stations, MRDI-1; in Ghazvin, Arak and Kerman stations, MRDI-2; in Shiraz station, MRDI-3; and in Sanandaj station, ORDI resulted in the best generalized estimating equation model. These results can be useful to plann for the management of cultivation in impressive timescales. HIGHLIGHTS Investigate the impacts of drought on wheat water productivity.; Considering different timescales of drought.; Modified reconnaissance drought index was used, which considers the effective precipitation.; Water productivity of winter wheat was simulated using the AquaCrop model.; Generalized estimating equation models were used to address the impact of drought on water productivity.;Mohammad Mehdi MoghimiAli ShabaniAbdol Rasoul ZareiIWA Publishingarticleeffective precipitationgeneralized estimating equationsmeteorological drought indiceswater productivitywinter wheatEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 7, Pp 3200-3223 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	effective precipitation generalized estimating equations meteorological drought indices water productivity winter wheat Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	effective precipitation generalized estimating equations meteorological drought indices water productivity winter wheat Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Mohammad Mehdi Moghimi Ali Shabani Abdol Rasoul Zarei Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
description	This research aims at assessing the impact of drought (in the form of original and modified reconnaissance drought indices (ORDI and MRDI)) on water productivity of rainfed winter wheat in some arid and semi-arid regions of Iran. It focuses on different timescales of drought to determine which period of the year had the greatest significant impact. RDI was modified using the Food and Agriculture Organization of the United Nation method (FAO) (MRDI-1), US Bureau of Reclamation (USBR) (MRDI-2), the Simplified version of Soil Conservation Service of the US Department of Agriculture method (USDA-SCS-simplified) (MRDI-3), and the CROPWAT version of USDA-SCS method (USDA-SCS CROPWAT) (MRDI-4). Results showed that in Tabriz and Zanjan stations, 3-month scale of MRDI-2; in Ghazvin, Arak, and Kerman stations, 6-month scale of MRDI-4; in Sanandaj station, 12-month timescale of MRDI-3; and in Shiraz stations, 1-month timescale of MRDI-1 resulted in the highest values of correlation coefficients. According to the goodness-of-fit parameters, in Tabriz and Zanjan stations, MRDI-1; in Ghazvin, Arak and Kerman stations, MRDI-2; in Shiraz station, MRDI-3; and in Sanandaj station, ORDI resulted in the best generalized estimating equation model. These results can be useful to plann for the management of cultivation in impressive timescales. HIGHLIGHTS Investigate the impacts of drought on wheat water productivity.; Considering different timescales of drought.; Modified reconnaissance drought index was used, which considers the effective precipitation.; Water productivity of winter wheat was simulated using the AquaCrop model.; Generalized estimating equation models were used to address the impact of drought on water productivity.;
format	article
author	Mohammad Mehdi Moghimi Ali Shabani Abdol Rasoul Zarei
author_facet	Mohammad Mehdi Moghimi Ali Shabani Abdol Rasoul Zarei
author_sort	Mohammad Mehdi Moghimi
title	Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
title_short	Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
title_full	Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
title_fullStr	Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
title_full_unstemmed	Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
title_sort	effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/5093f88685e7466f943679005829bf0a
work_keys_str_mv	AT mohammadmehdimoghimi effectofdifferenttimescalesofdroughtonwaterproductivityofrainfedwinterwheatinaridandsemiaridregions AT alishabani effectofdifferenttimescalesofdroughtonwaterproductivityofrainfedwinterwheatinaridandsemiaridregions AT abdolrasoulzarei effectofdifferenttimescalesofdroughtonwaterproductivityofrainfedwinterwheatinaridandsemiaridregions
_version_	1718440743264059392

Effect of different timescales of drought on water productivity of rain-fed winter wheat in arid and semi-arid regions

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