植物覆盖和生物质的变化在广泛的绿色屋顶上超过十年和十个经验教训
J Scott MacIvor1, Madison Appleby2, Samantha Miotto2
1Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario, Canada.
Journal of environmental management
|May 18, 2024
概括
有 Sedum 种植和有机媒介的广泛绿色屋顶,特别是灌,显示出最佳的植物覆盖和生物质. 塞杜姆为维护变化提供了弹性,确保了绿色屋顶的成功.
科学领域:
- 城市生态城市生态学
- 园艺科学 园艺科学
- 绿色基础设施绿色基础设施
背景情况:
- 绿色屋顶提供环境,社会和经济上的好处,导致在城市地区广泛采用.
- 长期监测绿色屋顶的性能是罕见的,限制了对其功能寿命的深入分析.
- 北美确立的绿色屋顶法规和标准强调了它们与城市景观的整合.
研究的目的:
- 评估绿色屋顶的长期性能,重点关注植物覆盖和生物质.
- 在十年内调查生长媒介,植物选择和灌对绿色屋顶功能的影响.
- 评估不同绿色屋顶系统在不同维护条件下的弹性.
主要方法:
- 一个长达十年的监测研究 (2011-2021) 在加拿大多伦多的绿色屋顶测试设施.
- 对生长媒介,植物类型 (,,草) 和灌水平的实验性操纵.
- 随着时间的推移,对植物覆盖面和生物质积累的定量分析,区分维护和后维护阶段.
主要成果:
- 在维护阶段 (2011-2017年),有机媒介和灌的Sedum种植产生了最高的植物覆盖和生物质.
- 没有灌的草和草表现不佳,不论介质类型.
- 在维护后 (2017-2021年),Sedum种植的模块保持了覆盖和生物质,而forbs和草则下降,被Sedum超越.
结论:
- 灌对于维持植被覆盖和生物质在绿色屋顶上种植草和草至关重要.
- 树种植提供了显著的弹性,缓冲环境波动和维护中断,从而提高了广泛的绿色屋顶的可靠性.
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