以数据为导向,优化县级管管理,以实现中国低碳,增收入的米生产
Qianying Wu1, Shangkun Liu1, Ruitao Lou1
1Department of Biosystems Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang Province, 310058, China.
Journal of environmental management
|September 19, 2025
概括
优化大米回归土壤可以平衡气候目标和粮食安全. 使用机器学习的特定地点策略将温室气体排放量降至最低,同时提高产量,特别是在单一作物系统中.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 机器学习应用 机器学习应用
背景情况:
- 草管理是复杂的,需要平衡气候变化减缓与大米生产的粮食安全.
- 对于可持续农业来说,特定地点的回收优化是必不可少的.
研究的目的:
- 制定一个综合框架,以优化中国主要大米种植地区的吸管回收和移除率.
- 确定特定地点的草管理策略,尽量减少温室气体 (GHG) 排放,而不会对大米产量产生负面影响.
主要方法:
- 利用机器学习 (ML) 模型,XGBoost 显示出卓越的性能,以预测草回报对温室气体排放 (CH4,N2O),土壤有机碳和大米产量的影响.
- 开发了一个补充的草物流模型来管理多余的草,避免燃烧.
- 进行了生态系统净经济效益 (NEEB) 分析.
主要成果:
- 在单一的米系统中,73%的吸管回报率使得产量增加了26.5%,温室气体排放减少了105%.
- XGBoost准确预测了草回报对排放,土壤碳和产量的影响.
- 由于产量-排放权衡,建议在双系统中去除草.
- 产量增加和降低肥料使用带来的经济效益超过了草管理成本.
结论:
- 在ML的指导下,特定于地点的数据驱动的草管理策略可以显著减少温室气体排放,提高农业的可持续性.
- 经济效益是巨大的,即使碳的社会成本被认为是最小的.
- 该框架为大米生产的可持续农业发展提供了一条道路.
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