Water Use Efficiency and Carbon Trade-Offs of Gravity and Pump Irrigation in Rice Cultivation
水利用効率と炭素トレードオフ：重力灌漑とポンプ灌漑の比較（稲作において） (AI 翻訳)
Chaitat Bokird, Jutithep Vongphet, Sasiwimol Khawkomol, Ketvara Sittichok, Chaiyapong Thepprasit, Bancha Kwanyuen, Bittawat Wichaidist, Chaisri Suksaroj, Songsak Puttrawutichai
🤖 gxceed AI 要約
日本語
タイの灌漑プロジェクトにおいて、重力式とポンプ管理式の灌漑システムを比較。水生産性や水フットプリントに有意差はないが、ポンプ式は灌漑工程での炭素排出が5倍高い。一方、エコ効率は最大8.11%向上し、低炭素農業と灌漑近代化のトレードオフを示す。
English
Comparing gravity vs pump irrigation in Thailand, this study finds no significant differences in water productivity or footprint, but pump irrigation generates five times higher carbon emissions. Eco-efficiency improves up to 8.11%, highlighting a trade-off between low-carbon agriculture and irrigation modernization.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
タイの事例だが、日本の水田灌漑でもポンプ利用は一般的であり、再エネ導入や効率化の必要性を示唆する。日本の農業分野でのGX推進に参考となる。
In the global GX context
This empirical study from Thailand demonstrates the carbon-water trade-off in irrigation modernization, relevant for global agricultural decarbonization strategies, especially where pump irrigation is expanding.
👥 読者別の含意
🔬研究者:Provides a quantitative framework for assessing carbon-water trade-offs in irrigation systems.
🏢実務担当者:Highlights the need to integrate renewable energy in pump irrigation to reduce carbon footprint while maintaining flexibility.
🏛政策担当者:Offers evidence for balancing water security and decarbonization in agricultural policy.
📄 Abstract（原文）
As climate change worsens, irrigation modernization has become critical for better water distribution and maintaining rice production in the face of increasing water constraints. However, there remains a gap in quantification regarding the environmental trade-offs between pump-managed and gravity-based irrigation systems, especially in integrated assessments that relate economic performance, carbon emissions, and water use. This study used an integrated framework of water productivity (WP), consumptive water footprint (WF), carbon footprint, and eco-efficiency to compare gravity-based and pump-managed systems in the Don Chedi Operation and Maintenance Project, Thailand, from 2021 to 2023. The results showed no significant differences in WP and WF between systems. WP averaged 0.39 kg m−3 during the wet seasons and 0.54 kg m−3 during the dry seasons, while the WF averaged 2517 m3 t−1 and 1854 m3 t−1, respectively. These findings indicate that pump-managed irrigation enhanced operational flexibility and yield stability but did not substantially improve water use efficiency. However, compared with the gravity-based system, the pump-managed system produced much greater carbon emissions, with total carbon footprints ranging from 1.252 to 1.333 tCO2eq t−1, or five times higher in the irrigation process. Eco-efficiency metrics rose by up to 8.11% despite this environmental burden, indicating enhanced economic resilience amid fluctuating water conditions. These results show a recurring trade-off between low-carbon agricultural development and irrigation modernization. The study therefore emphasizes the importance of integrating renewable energy and low-carbon technologies into pump-based irrigation systems to support climate-resilient and sustainable agricultural transitions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/su18105097first seen 2026-05-21 04:43:12
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