Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits

Abstract The changing climate makes it more difficult to manage water resources and food production sustainably. Various adaptation measures have been proposed to moderate the negative impacts of climate change; however, implementation of these measures may be hampered by other factors even if the b...

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Main Authors: Asari Takada, Takeo Yoshida, Yasushi Ishigooka, Atsushi Maruyama, Ryoji Kudo
Format: Article
Language:English
Published: Wiley 2024-04-01
Series:Water Resources Research
Subjects:
Online Access:https://doi.org/10.1029/2022WR034219
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author Asari Takada
Takeo Yoshida
Yasushi Ishigooka
Atsushi Maruyama
Ryoji Kudo
author_facet Asari Takada
Takeo Yoshida
Yasushi Ishigooka
Atsushi Maruyama
Ryoji Kudo
author_sort Asari Takada
collection DOAJ
description Abstract The changing climate makes it more difficult to manage water resources and food production sustainably. Various adaptation measures have been proposed to moderate the negative impacts of climate change; however, implementation of these measures may be hampered by other factors even if the benefits are acknowledged—a situation termed “soft adaptation limits” by the IPCC. We hypothesized that societal rules can be a potential barrier to adaptive action if they are too fixed, because such rules have coevolved with the interactions between the past climate and human activities. To test this hypothesis, we present a framework based on the assumption that associated societal rules of Japan's matured irrigation systems are potential barriers to adaptation. The framework consisted of two process‐based models, one to evaluate the water deficit risk and one to evaluate the benefits of optimizing rice yield and quality. We applied each model to an experiment in which we shifted the current transplantation date by 1 week for up to 5 weeks before and after the current date under the historical (1981–2000) and RCP 2.6 and 8.5 (2011–2030 and 2031–2050) scenarios. We revealed two contrasting development pathways in the study watershed. Soft adaptation limits imposed by water availability will occur by 2030 if farmers optimize for quality, whereas mutual benefits to farmers and river administrators will be achieved if farmers seek yield. We argue that more participatory research with stakeholder engagement, as well as policy discussions about these possible developments, is needed to ensure successful adaptation.
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spelling doaj-art-03794a1a401b4f9cbdfb42e1ad3091722025-08-20T02:36:39ZengWileyWater Resources Research0043-13971944-79732024-04-01604n/an/a10.1029/2022WR034219Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation LimitsAsari Takada0Takeo Yoshida1Yasushi Ishigooka2Atsushi Maruyama3Ryoji Kudo4Institute for Rural Engineering National Agriculture and Food Research Organization Tsukuba JapanInstitute for Rural Engineering National Agriculture and Food Research Organization Tsukuba JapanInstitute for Agro‐Environmental Sciences National Agriculture and Food Research Organization Tsukuba JapanInstitute for Agro‐Environmental Sciences National Agriculture and Food Research Organization Tsukuba JapanGraduate School of Environmental and Life Science Okayama University Okayama JapanAbstract The changing climate makes it more difficult to manage water resources and food production sustainably. Various adaptation measures have been proposed to moderate the negative impacts of climate change; however, implementation of these measures may be hampered by other factors even if the benefits are acknowledged—a situation termed “soft adaptation limits” by the IPCC. We hypothesized that societal rules can be a potential barrier to adaptive action if they are too fixed, because such rules have coevolved with the interactions between the past climate and human activities. To test this hypothesis, we present a framework based on the assumption that associated societal rules of Japan's matured irrigation systems are potential barriers to adaptation. The framework consisted of two process‐based models, one to evaluate the water deficit risk and one to evaluate the benefits of optimizing rice yield and quality. We applied each model to an experiment in which we shifted the current transplantation date by 1 week for up to 5 weeks before and after the current date under the historical (1981–2000) and RCP 2.6 and 8.5 (2011–2030 and 2031–2050) scenarios. We revealed two contrasting development pathways in the study watershed. Soft adaptation limits imposed by water availability will occur by 2030 if farmers optimize for quality, whereas mutual benefits to farmers and river administrators will be achieved if farmers seek yield. We argue that more participatory research with stakeholder engagement, as well as policy discussions about these possible developments, is needed to ensure successful adaptation.https://doi.org/10.1029/2022WR034219climate changedistributed water circulation modelprocess‐based rice simulation modelirrigation water userice yieldrice quality
spellingShingle Asari Takada
Takeo Yoshida
Yasushi Ishigooka
Atsushi Maruyama
Ryoji Kudo
Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits
Water Resources Research
climate change
distributed water circulation model
process‐based rice simulation model
irrigation water use
rice yield
rice quality
title Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits
title_full Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits
title_fullStr Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits
title_full_unstemmed Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits
title_short Potential Barriers to Adaptive Actions in Water–Rice Coupled Systems in Japan: A Framework for Predicting Soft Adaptation Limits
title_sort potential barriers to adaptive actions in water rice coupled systems in japan a framework for predicting soft adaptation limits
topic climate change
distributed water circulation model
process‐based rice simulation model
irrigation water use
rice yield
rice quality
url https://doi.org/10.1029/2022WR034219
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