Climate‑smart water management in rice paddies : a meta‑synthesis on greenhouse gas emissions and yield impacts

Minamikawa, Kazunori

doi:https://doi.org/10.1007/s10333-025-01045-4

WEKO3

lat lon distance

[[sub_check.contents]]

[[sub_radio.contents]]

Field does not validate

[[sub_attr.contents]]　

インデックスツリー

アイテム

Climate‑smart water management in rice paddies : a meta‑synthesis on greenhouse gas emissions and yield impacts

https://jircas.repo.nii.ac.jp/records/2000927

名前 / ファイル	ライセンス	アクション
2000927 (800.5 KB)

Item type

国際農研デフォルトアイテムタイプ（フル）(1)

公開日

2025-08-08

タイトル

Climate‑smart water management in rice paddies : a meta‑synthesis on greenhouse gas emissions and yield impacts

言語

作成者

Minamikawa, Kazunori

ORCID 0000-0002-4762-8765

en	Minamikawa, Kazunori ISNI Japan International Research Center for Agricultural Sciences 0000000121078171

Search repository

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

権利情報

権利情報Resource

http://creativecommons.org/licenses/by/4.0/

権利情報

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

権利情報

The version of record of this article, first published in Paddy and Water Environment is available online at Publisher’s website: https://doi.org/10.1007/s10333-025-01045-4

主題

Climate-smart agriculture, Methane, Multiple drainage, Nitrous oxide, Soil, Technology dissemination

内容記述

内容記述タイプ

Abstract

内容記述

Water management practices in rice paddies, particularly alternate wetting and drying and midseason drainage followed by intermittent irrigation, are widely recognized for reducing methane (CH₄) emissions and irrigation water use compared to continuous flooding (CF). However, these practices also increase nitrous oxide (N₂O) emissions and their effect on rice yield remains unclear, especially in the context of technology dissemination to farmers. This study (1) reviews 11 recent meta-analyses on CH₄and N₂O emissions and rice yield and (2) synthesizes their reported effects on rice growth and yield. Aggregated data show that CH₄ emissions decreased by 31–62% (n = 10), while N₂O emissions increased by 37–445% (n = 7), relative to CF. Rice yield change ranged from − 5.4% to + 11% with a mean of + 1.3% (n = 8). The impact of water management on rice yield varied depending on the timing and intensity of drainage events, with excessive water stress—particularly during the heading stage—and prolonged reductive soil conditions being key risk factors. Results indicate that mild-intensity drainage practices, such as ‘safe AWD,’ not only avoid yield penalties but can significantly enhance rice productivity when tailored to favorable environmental and agronomic conditions. For effective dissemination of these practices, leveraging yield improvement as an incentive for farmers is essential. Optimizing drainage schedules in accordance with rice physiological stages and local conditions is critical. With appropriate localization, water management can serve as a climate-smart strategy that simultaneously improves water efficiency, reduces greenhouse gas emissions, and maintains or increases rice productivity.

言語

内容記述

内容記述タイプ

Other

内容記述

Official journal of the International Society of Paddy and Water Environment Engineering (PAWEES).

言語

出版者

Springer

日付

2025-07-10

日付タイプ

Accepted

言語

eng

資源タイプ

資源タイプ識別子

http://purl.org/coar/resource_type/c_6501

資源タイプ

journal article

出版タイプ

VoR

出版タイプResource

http://purl.org/coar/version/c_970fb48d4fbd8a85

Versions

Ver.1

2025-08-08 00:49:05.279908

Show All versions

Cite as

エクスポート

OAI-PMH

JPCOAR 2.0
JPCOAR 1.0
DublinCore
DDI

Other Formats

JSON
BIBTEX

インデックスリンク

インデックスツリー

アイテム

Climate‑smart water management in rice paddies : a meta‑synthesis on greenhouse gas emissions and yield impacts

× Minamikawa, Kazunori

Versions

Share

Cite as

エクスポート