先进的技术适应可以提高各种水生产系统的能源和碳效率
V K Choudhary1,2, Ram Swaroop Meena3
1ICAR-National Institute of Biotic Stress Management, Raipur, 493225, Chhattisgarh, India.
Heliyon
|March 22, 2024
概括
钻井播种直播种 (DSR L) 是南亚最有利可图,最节能,最环保的生产系统. 与传统移植大米 (TPR) 相比,这种方法提供了更高的净收益率和更低的碳足迹.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 环境科学 环境科学
背景情况:
- 全球迫切需要节能,具有成本效益和环保的米生产系统.
- 南亚的水生产系统在利能力,能源效率和生态影响方面面临挑战.
- 实行各种水种植方法,包括移植水 (TPR) 和直接播种水 (DSR) 变种.
研究的目的:
- 评估和比较南亚不同大米生产系统的经济可行性,能源效率和环境足迹.
- 根据可持续性指标,确定最适合农民采用的水种植方法.
主要方法:
- 数据来自南亚各地的280个农民农场.
- 五种大米生产系统的比较:移植大米 (TPR),湿直播大米 (WDSR),钻井播种直播大米 (DSR L),传统直播大米 (DSR) 和DSR + 灌 (DSR + B).
- 对产量,利能力,能源使用效率,能源生产率,能源利能力,能源输出效率,碳效率,碳可持续性指数和碳足迹进行分析.
主要成果:
- 移植大米 (TPR) 产量为6056公斤的1公谷物和7752公斤的1公草,但不是有利可图的,节能的或环保的.
- 钻井播种直播种米在线 (DSR L) 产量为5832公斤ha-1谷物和7757公斤ha-1草.
- DSR L表现出卓越的表现,净收益最高 (每111.5美元),能源使用效率高 (12.77),能源生产率高 (0.41千克每千克),能源利率高 (11.77千克每千克),碳足迹最低 (0.14千克二氧化碳等于1千克每千克),碳指标有利.
结论:
- 钻井播种直播种在线 (DSR L) 是研究中的最生产力,经济可行,能源效率和环境安全的米生产系统.
- 对于南亚的米种植者来说,DSR L是一个可持续和可采用的替代方案.
- 这些发现支持向DSR L过渡,以改善农民生计和减少大米种植对环境的影响.
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