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测量各种城市绿地与当地气候区之间的关系

Vlaďka Kirschner¹, Karel Macků², David Moravec³

¹Department of Landscape and Urban Planning, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, 16500, Prague, Czech Republic. kirschner@fzp.czu.cz.

Scientific reports

|June 16, 2023

概括

密集树木的紧城市绿地 (UGS) 提供了最显著的冷却效应,降低了土地表面温度高达2.3°C. 这一发现有助于城市规划,以改善城市微气候.

科学领域:

城市规划和设计
环境科学环境科学
气候学气候学气候学

背景情况:

城市绿地 (UGS) 减轻了城市热岛 (UHI) 效应,改善了城市生活条件.
在不同住宅区的UGS类型的具体影响仍然未被充分探索.
了解这些关系对于有效的城市气候监管至关重要.

研究的目的:

系统地分析各种UGS对附近住宅区的冷却效应.
研究UGS特征 (大小,形状,树木密度) 与住宅区类型 (当地气候区) 之间的关系.
为优化城市规划和设计提供数据驱动的见解.

主要方法:

分析了布拉格的71个UGS,评估它们对400米以内住宅区的冷却效应.
根据空间特征对UGS的分类以及根据当地气候区分别对住宅区的分类 (LCZ 2,5,6).
基于UGS类型,LCZ和距离的陆地表面温度 (LST) 的回归建模.

主要成果:

紧的UGS (10-25公) 与密集的树木覆盖展示了最实质性的冷却效应.
与效率较低的类型相比,在最有效的UGS400米以内观察到LST平均降低2.3°C.
降温的影响在不同的当地气候区有所不同.

结论:

特定的UGS特性,特别是大小和树木密度,显著影响它们的冷却效率.
有针对性的UGS设计和放置可以优化城市环境中的微气候调节.
结果支持基于证据的城市规划,以适应气候变化和改善城市生活.

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