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原生植被和土壤湿度动态对绿色屋顶系统中蒸发透气的影响

Zhaokai Dong¹, Daniel J Bain², Shishir Paudel³

¹Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA.

The Science of the total environment

|August 28, 2024

概括

绿色屋顶的蒸发透气 (ET) 很难测量. 土壤湿度数据准确地跟踪ET,优于标准模型,并为雨水保留提供更好的灌信息.

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:

蒸发转化 (ET) 对绿色屋顶 (GR) 水预算至关重要.
在全面的GR中准确地评估ET是具有挑战性的.
了解ET有助于进行雨水保留分析.

研究的目的:

在匹兹堡的绿色屋顶上调查外星人的动态.
评估使用土壤水分的ET测量方法.
通知绿色屋顶灌策略.

主要方法:

使用了为期15个月的水平衡研究.
采用了持续的土壤湿度监测.
基于传感器的ET与Hargreaves和FAO-56 Penman-Monteith模型进行了比较.

主要成果:

每天的水分损失与太阳辐射,温度和湿度相关.
哈格里夫斯和粮农组织-56模型高估了ET的1.8倍和2.1倍,分别.
水应力显著降低了ET,显示出与水分含量的线性关系.

结论:

土壤湿度数据对于绿色屋顶中精确的ET评估至关重要.
对于精确的ET估计,需要水应力系数.
结果支持改善绿色屋顶性能和灌管理.

关键词:

作物系数的作物系数蒸发转化是指蒸发转化.绿色屋顶是一个绿色的屋顶.土壤水分土壤水分植物物种植物物种水平衡水平衡的水平衡.

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