缓解大米种植甲排放的进展:过去,现在和未来的战略
Tran Dang Xuan1,2,3, Tran Thi Ngoc Minh4, Ramin Rayee5
1Transdisciplinary Science and Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Hiroshima, 739-8529, Japan. tdxuan@hiroshima-u.ac.jp.
Environmental science and pollution research international
|August 19, 2025
概括
减少种植产生的甲排放是至关重要的. 诸如交替湿和干燥等实践显著减少了排放,得到了金融激励和精准农业的支持.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 气候科学 气候科学
背景情况:
- 米种植是全球甲 (10-12%的总排放) 的重要来源.
- 在大米田中,传统的连续洪水做法创造了厌氧条件,促进了甲的产生.
- 田的甲 (CH4) 排放是温室气体排放的关键因素.
研究的目的:
- 分析米种植中的甲减排策略.
- 评估各种缓解技术和财务激励措施的有效性.
- 识别可持续大米种植的障碍和未来方向.
主要方法:
- 分析不同种植水的排放数据.
- 审查碳信用和认证计划等金融机制.
- 评估精准农业技术 (物联网,无人机,机器学习).
主要成果:
- 替代湿和干燥 (AWD) 减少了41.37%的CH4排放.
- 生物炭应用和中季排水减少了CH4排放量,分别减少了28.97%和23.87%.
- 财政激励和政策机制对于农民采用低排放技术至关重要.
结论:
- 实施改进的水资源管理,土壤处理和政策支持,大大提高了水栽培中的甲减排效率.
- 精准农业为优化资源管理提供了潜力.
- 采用障碍包括成本和培训;未来的研究应侧重于耐压品种和在发展中国家更广泛地实施AWD和物联网.
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