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探索城市住宅植被的区域冷却效率,使用场景模拟
Jiaxin Sun1, Li Feng1, Hairong Feng1
1College of Geography and Remote Sensing, Hohai University, Nanjing 211100, China.
The Science of the total environment
|October 11, 2024
概括
城市植被 城市植被
科学领域:
- 城市气候学 城市气候学
- 环境科学 环境科学
- 可持续发展的城市规划
背景情况:
- 城市植被的微型制冷效率对于改善住宅热环境至关重要.
- 对建筑布局对绿色空间冷却影响的定量分析至关重要.
- 现有的研究往往缺乏对建筑物植物相互作用的微观分析.
研究的目的:
- 研究城市住宅植被的区域冷却效率 (RCE).
- 分析RCE的每日变化特征.
- 确定在典型的中国住宅区影响RCE的关键因素.
主要方法:
- 使用ENVI-MET模型进行微尺度数值模拟.
- 设计了15个模拟场景,建筑的方向,高度和密度各不相同.
- 开发和应用区域冷却效率 (RCE) 方法.
主要成果:
- RCE表现出单一峰值的每日变化,最低点在6点,最高点在14点.
- 空气温度和建筑密度与RCE正相关;相对湿度显示出负相关.
- 空气温度,相对湿度和建筑密度是对RCE影响最大的因素.
结论:
- 建筑的布局显著影响城市植被的冷却效率.
- 了解RCE变化和影响因素有助于改善热环境.
- 为优化城市规划提供理论支持,以获得更好的热舒适性.
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