优化覆盖作物实践作为全球农业生态系统服务的可持续解决方案
Tianyi Qiu1,2, Yu Shi2,3, Josep Peñuelas4,5
1Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan, China.
Nature communications
|December 5, 2024
概括
优化覆盖作物实践,包括长期使用和气候智能方法,大大提高了农业的可持续性. 这种方法提高了作物产量,碳捕获和土壤稳定性,同时减轻了全球农业生态系统的环境权衡.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 生态生态学 生态生态学
背景情况:
- 覆盖作物越来越多地被用于农业可持续性.
- 然而,它们的全部潜力往往受到环境权衡的限制,例如温室气体排放增加.
- 优化覆盖作物策略对于最大化收益至关重要.
研究的目的:
- 优化覆盖作物实践,使用元分析和数据驱动量化.
- 评估优化覆盖作物的全球农业生态系统的协同效益.
- 预测优化实践对粮食安全和环境保护的长期影响.
主要方法:
- 2,302个观察结果的元分析.
- 以数据为导向的量化覆盖作物的影响.
- 优化实践组合的评估,包括双种植,终止时间和残留物覆.
主要成果:
- 优化覆盖作物实践,特别是长期 (≥5年) 和气候智能 (例如,无耕作),协同增强农业生态系统服务.
- 一个最佳的投资组合涉及豆类/非豆类双种植,在种植前25天的终止,以及残留物覆盖.
- 预计的收益包括每年增加1.25%的多种服务,97.7亿米的作物生产,21.7亿米的二氧化碳封存,以及减少2.41亿米的土壤侵蚀.
结论:
- 优化覆盖作物实践为平衡粮食安全和环境保护提供了强有力的战略.
- 到2100年继续实施可以减轻气候相关的产量损失,并为气候中立性做出贡献.
- 这些优化实践对恶劣和欠发达的农业地区尤其有益.
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