一个建模框架来评估绿色屋顶的作物生产潜力
Pengxuan Xie1, Valerio Barbarossa2, Jan Willem Erisman1
1Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA Leiden, the Netherlands.
The Science of the total environment
|October 28, 2023
概括
城市绿色屋顶可以通过种植白菜等作物来提高粮食安全,阿姆斯特丹有400公适合生产的土地. 这项研究模拟了作物产量,并为城市规模的城市农业优化了灌.
科学领域:
- 城市农业 城市农业
- 可持续的食品系统 可持续的食品系统
- 绿色屋顶技术 绿色屋顶技术
背景情况:
- 全球日益增长的粮食需求和有限的耕地威胁着粮食安全.
- 城市粮食生产,特别是绿色屋顶上的粮食生产,为满足需求和减少农业土地压力提供了解决方案.
- 目前缺乏绿色屋顶作物生产的城市规模建模框架.
研究的目的:
- 在城市绿色屋顶上适应和应用Aquacrop模型来模拟作物生长和生产潜力.
- 评估作物产量,并确定适合在阿姆斯特丹进行绿色屋顶农业的地区.
- 综合优化灌策略,考虑气候驱动的水资源供应情况.
主要方法:
- 适应Aquacrop模型以模拟在绿色屋顶上的作物生长.
- 将模型应用于阿姆斯特丹合适的屋顶区域,考虑斜率和承载能力.
- 包括基于气候驱动的水资源可用性场景的优化灌方法.
主要成果:
- 卷心菜的产量在30.8至75.9/ha-1年之间,豆类的产量在1.7至6.4/ha-1年之间.
- 在阿姆斯特丹,大约400公的适合绿色屋顶面积 (占屋顶总面积的16%) 可以支持作物生产.
- 阿姆斯特丹适合绿色屋顶的年度作物生产潜力估计为28千.
结论:
- 开发的建模框架有效地模拟了城市规模的绿色屋顶作物生产潜力.
- 城市绿色屋顶为粮食生产提供了巨大的潜力,有助于缩短供应链和城市粮食安全.
- 该框架可适应在其他城市使用,以指导城市规划和种植战略.
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