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生物炭-堆肥混合物调节地中海条件下的屋顶农业系统中的微量元素和营养动态
Medina Veliu1, Hugo López-Romano2, Giuseppe Picca3
1Univ Gustave Eiffel, GERS-LEE, Bouguenais F-44344, France; Instituto de Ciencias Agrarias (ICA-CSIC), Calle Serrano 115dpdo, Madrid 28006, Spain; Institut de la Recherce en Science et Techniques de la Ville - CNRS FR2488, Centrale Nantes, France.
Ecotoxicology and environmental safety
|July 17, 2025
概括
由有机废物制成的生物炭改性堆肥为屋顶农业 (RA) 提供了安全,可持续的泥炭替代品. 这项研究表明,它们减少了植物吸收和微量元素的浸出,并改善了营养素的保留.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 屋顶农业 (RA) 需要可持续的,轻量级的生长媒介作为泥炭的替代品.
- 将有机废物与生物炭共同堆肥是一个潜在的解决方案,减少了对环境的影响.
- 关于这些堆肥生物炭基质的食品安全和环境性能存在知识差距.
研究的目的:
- 检查从消耗的咖啡粉,咖啡银皮和海藻中提取的堆肥中的微量元素和营养动力学,有或没有生物炭.
- 评估这些基质对植物吸收和元素浸出在屋顶种植三年的影响.
- 评估生物炭改性堆肥的食品安全和环境性能,作为RA的泥炭替代品.
主要方法:
- 通过共同堆肥消耗的咖啡粉,咖啡银皮和带有和没有生物炭的海藻,创造了六种基板.
- 在马德里的一座屋顶上用这些基板种植了番茄,生菜和瑞士三年.
- 分析了微量元素和营养动态,并为基于风险的元素类别计算了特定的指数,以评估植物吸收和浸出.
主要成果:
- 原料类型显著影响了微量元素和营养动态;生物炭持续减少了植物的吸收和出.
- 基于海藻的堆肥含含量较高,但生物炭将植物吸收量降低了高达40%. 和仍然在欧盟的安全限制范围内.
- 生物炭增强了营养保留,在三年内分别减少了40%和25%的和损失.
结论:
- 生物炭改性堆肥是用于屋顶农业的可行,安全和可持续的泥炭替代品.
- 这些基板支持作物生产,同时有效地减轻与营养物质出和微量元素污染相关的环境风险.
- 该研究提供了关于城市农业环境中基于生物炭的生长介质的长期性能和安全性的关键数据.
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