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量化绿色屋顶上的蒸发透气流:观察方法的比较分析

Ahmeda Assann Ouédraogo¹, Emmanuel Berthier¹, David Ramier¹

¹Equipe TEAM, Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et Aménagement (Cerema), 12 rue Teisserenc de Bort, F 78190 Trappes, France.

The Science of the total environment

|August 10, 2023

概括

在绿色屋顶上的蒸发透气 (ET) 很难测量. 能量平衡方法比水平衡或室内方法产生更高的ET估计,基底深度和有机含量显著影响结果.

科学领域:

环境科学环境科学
水文学的水文学
城市生态城市生态学

背景情况:

蒸发透气 (ET) 对绿色雨水基础设施 (GSI) 功能至关重要,例如减少城市排水和促进冷却.
在绿色屋顶 (GR) 上准确的ET评估是复杂的和有争议的.

研究的目的:

在实验绿色屋顶上比较估计蒸发透气 (ET) 的不同方法.
确定影响绿色屋顶系统中ET率的因素.

主要方法:

在五个实验绿色屋顶地块上使用水平衡,能量平衡和ET室进行了ET估计.
数据被收集和分析,以比较每日和每小时的ET值.

主要成果:

与水平衡 (0.83 mm/d) 和室内方法 (11.5 mm/d) 相比,能量平衡方法产生了更高的ET值 (1.83.7 mm/d).
所有方法的ET值都低于Penman-Monteith计算的潜在ET值.
基质厚度 (特别是15厘米) 和有机含量显著增加ET,草本植物表现优于.

结论:

选择ET估计方法对结果产生影响,能源平衡由于感知热量流动而显示更高的值.
水平衡是实用的,而室内方法在降雨后更可靠,但劳动密集型.
基板特性和植物类型是绿色屋顶中ET的关键驱动因素,影响GSI性能.

关键词:

进行比较,比较.能源平衡能源平衡能源平衡蒸发转化是指蒸发转化.蒸发透气室是一个蒸发透气室.绿色屋顶是一个绿色的屋顶.水平衡水平衡的水平衡.

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