Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand

This study investigates the potential impacts of climate change on water resources and evaluates adaptation strategies on rainfed rice water management under climate change scenarios in the Songkhram River Basin, Thailand. The Soil and Water Assessment Tool (SWAT) model was used to project the futur...

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Autores principales:	Siriwat Boonwichai, Sangam Shrestha, Pragya Pradhan, Mukand S. Babel, Avishek Datta
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	adaptation irrigation water requirement swat model water availability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ddb66923fabe49639d3830dcd91070e8
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spelling	oai:doaj.org-article:ddb66923fabe49639d3830dcd91070e82021-11-05T19:07:06ZAdaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand2040-22442408-935410.2166/wcc.2021.220https://doaj.org/article/ddb66923fabe49639d3830dcd91070e82021-09-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/6/2181https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354This study investigates the potential impacts of climate change on water resources and evaluates adaptation strategies on rainfed rice water management under climate change scenarios in the Songkhram River Basin, Thailand. The Soil and Water Assessment Tool (SWAT) model was used to project the future water availability under climate change scenarios for the period of 2020–2044. Future annual water availability is expected to remain unchanged due to unchanged future rainfall but expected to reduce from June to November due to changes in seasonal rainfall. The effects of supplying irrigation water to reduce the impact of climate change and increase rainfed rice production were evaluated. To increase the rice production by 15%, it is proposed to construct a reservoir with a capacity of below 65 MCM in each of the 15 sub-basins to fulfill the irrigation water requirements during the rainfed rice season. Alternatively, adaptation at the farm scale can be implemented by constructing ponds with a capacity of 900 m3 to store water for 1 ha of rice field to meet the potential rice yield during the non-rainfed rice season. The results of this study are helpful to policymakers in understanding the potential impacts of climate change and the formulation of adaptation strategies for water and rice sectors in the basin. HIGHLIGHTS Adaptation strategies for rainfed rice water management under climate change scenarios were evaluated at the farm and basin scale.; The Soil and Water Assessment Tool model was used to forecast the future water availability for the rainfed cultivation.; A pond with a capacity of 900 m3 is recommended to store water for 1 ha of rice to produce the potential rice yield.;Siriwat BoonwichaiSangam ShresthaPragya PradhanMukand S. BabelAvishek DattaIWA Publishingarticleadaptationirrigation water requirementswat modelwater availabilityEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 6, Pp 2181-2198 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	adaptation irrigation water requirement swat model water availability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	adaptation irrigation water requirement swat model water availability Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Siriwat Boonwichai Sangam Shrestha Pragya Pradhan Mukand S. Babel Avishek Datta Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand
description	This study investigates the potential impacts of climate change on water resources and evaluates adaptation strategies on rainfed rice water management under climate change scenarios in the Songkhram River Basin, Thailand. The Soil and Water Assessment Tool (SWAT) model was used to project the future water availability under climate change scenarios for the period of 2020–2044. Future annual water availability is expected to remain unchanged due to unchanged future rainfall but expected to reduce from June to November due to changes in seasonal rainfall. The effects of supplying irrigation water to reduce the impact of climate change and increase rainfed rice production were evaluated. To increase the rice production by 15%, it is proposed to construct a reservoir with a capacity of below 65 MCM in each of the 15 sub-basins to fulfill the irrigation water requirements during the rainfed rice season. Alternatively, adaptation at the farm scale can be implemented by constructing ponds with a capacity of 900 m3 to store water for 1 ha of rice field to meet the potential rice yield during the non-rainfed rice season. The results of this study are helpful to policymakers in understanding the potential impacts of climate change and the formulation of adaptation strategies for water and rice sectors in the basin. HIGHLIGHTS Adaptation strategies for rainfed rice water management under climate change scenarios were evaluated at the farm and basin scale.; The Soil and Water Assessment Tool model was used to forecast the future water availability for the rainfed cultivation.; A pond with a capacity of 900 m3 is recommended to store water for 1 ha of rice to produce the potential rice yield.;
format	article
author	Siriwat Boonwichai Sangam Shrestha Pragya Pradhan Mukand S. Babel Avishek Datta
author_facet	Siriwat Boonwichai Sangam Shrestha Pragya Pradhan Mukand S. Babel Avishek Datta
author_sort	Siriwat Boonwichai
title	Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand
title_short	Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand
title_full	Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand
title_fullStr	Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand
title_full_unstemmed	Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand
title_sort	adaptation strategies for rainfed rice water management under climate change in songkhram river basin, thailand
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/ddb66923fabe49639d3830dcd91070e8
work_keys_str_mv	AT siriwatboonwichai adaptationstrategiesforrainfedricewatermanagementunderclimatechangeinsongkhramriverbasinthailand AT sangamshrestha adaptationstrategiesforrainfedricewatermanagementunderclimatechangeinsongkhramriverbasinthailand AT pragyapradhan adaptationstrategiesforrainfedricewatermanagementunderclimatechangeinsongkhramriverbasinthailand AT mukandsbabel adaptationstrategiesforrainfedricewatermanagementunderclimatechangeinsongkhramriverbasinthailand AT avishekdatta adaptationstrategiesforrainfedricewatermanagementunderclimatechangeinsongkhramriverbasinthailand
_version_	1718444072697331712

Adaptation strategies for rainfed rice water management under climate change in Songkhram River Basin, Thailand

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