土壤储量可以延长全球储量,改善水质
R W McDowell1,2, P M Haygarth3
1Faculty of Agriculture and Life Sciences, Lincoln University, Christchurch, New Zealand. richard.mcdowell@lincoln.ac.nz.
Nature food
|January 3, 2025
概括
土壤中庞大的储量可以显著减少肥料需求. 利用这些尚未开发的储量为实现更大的农业可持续性和改善水质提供了一条道路.
科学领域:
- 农业科学 农业科学
- 土壤科学 土壤科学
- 环境科学 环境科学
背景情况:
- 是作物生产的关键营养素.
- 目前的肥应用做法引发了环境问题.
- 在全球的耕地和草原上存在重要的储量.
研究的目的:
- 为了量化全球的库存在不易获得的土壤池.
- 评估这些库存的潜力,以满足未来的需求.
- 评估对的可持续性和环境质量的影响.
主要方法:
- 编制和整合现有的全球土壤和地质数据库.
- 估计非耕地和草原土壤中的储量.
- 计算这些库存相对于地质储备和年度肥料应用的比例.
主要成果:
- 农田和草原的全球非易于获得的储量占2020年估计的地质储量的32-41%.
- 这些土壤储量代表了2020年年度肥应用量中的146-186年.
- 确定了减少对肥料的依赖和改善水质的潜力.
结论:
- 未开发的土壤是可持续农业的重要资源.
- 有效的作物进入这些储备可以减少对合成肥料的依赖.
- 利用土壤储量是提高全球可持续性的关键.
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