提高垂直绿化系统的排水质量:基质类型超过了促进微生物生长的植物生长效应
Xi Shu1, D Johan Kotze2, Sari Timonen3
1Faculty of Biological and Environmental Sciences, Ecosystems and Environment Research Programme, University of Helsinki, FI-15140 Lahti, Finland; Faculty of Agriculture and Forestry, Helsinki Institute of Sustainability Science (HELSUS) & Department of Agriculture, University of Helsinki, Yliopistonkatu 3, FI-00014, Finland.
The Science of the total environment
|September 3, 2023
概括
垂直绿化系统 (VGS) 可以管理雨水. 基于 Reed 的基板释放的元素比沙土更多,但植物生长促进微生物 (PGPM) 和水分控制可以减少漏.
科学领域:
- 环境科学 环境科学
- 城市生态城市生态学
- 水资源管理 水资源管理
背景情况:
- 有限的城市绿地需要创新的雨水管理解决方案.
- 垂直绿化系统 (VGS) 被探索为互补的战略.
- 在VGS中,有机与非有机基质的比较雨水管理能力未得到充分研究.
研究的目的:
- 调查基质类型和植物生长促进微生物 (PGPM) 接种对VGS流水中的元素度和负载的影响.
- 评估模拟雨水量和基板湿度对VGS雨水质量的影响.
- 为优化VGS设计提供经验证据,以加强雨水管理.
主要方法:
- 使用创新的VGS来评估元素 (包括N,P,金属在内的15个元素) 的流水.
- 实验操纵了基质类型 (基与沙土),PGPM注射,模拟的雨水量和基质水分.
- 分析了流水度和元素的总负载.
主要成果:
- 基板类型显著影响了元素度和负载,基板显示出比沙土土壤更高的输出.
- PGPM注射降低了总元素负载,特别是对于特定的金属和营养素,具有基质依赖的效应.
- 模拟的雨水量和基板湿度与基板类型相互作用,影响了元素漏动态.
结论:
- 基板的选择对于最小化从VGSs中的元素出至关重要.
- 保持适当的基板湿度水平和使用PGPM注射可以进一步提高VGS的雨水管理.
- 通过基质选择,湿度管理和PGPM的优化VGS设计可以有效地控制元素漏.
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