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量化中国的生态恢复项目推动的城市绿化降温效应

Dong Xu^1,2,3, Tingting Bai⁴, Lin Yang⁵

¹Department of Geography, National University of Singapore, Singapore 119077, Singapore.

Environmental science & technology

|November 16, 2024

概括

城市绿化 (UG) 显著降温城市,在20年内将变暖趋势减少14.17%. 这种降温潜力在城市核心远高于蔓延地区,突出显示了植被管理的重要性.

科学领域:

环境科学环境科学
城市气候学城市气候学
地理信息科学地理信息科学

背景情况:

城市绿化 (UG) 通过改变表面能量平衡来影响当地气候.
长期的冷却潜力,空间模式和UG对城市变暖的影响尚未完全理解.

研究的目的:

开发一种新的统计模型来评估城市绿化 (CPUG) 的降温潜力.
创建中国的第一个CPUG地图,并量化其对城市变暖趋势的影响.

主要方法:

设计了一个新的统计模型来评估CPUG.
分析了二十年来观测和模拟的城市表面温度 (UST) 的趋势.
量化CPUG及其在不同城市区域制城市变暖的贡献.

主要成果:

在过去的二十年中,CPUG量化为0.20K,在中国城市的城市变暖趋势减缓了14.17%.
CPUG在城市核心 (1.01 K,56.08%的变暖减少) 和蔓延地区 (0.14 K,9.93%的变暖减少) 之间有显著差异.
城市化和生态恢复项目被确定为影响CPUG的关键因素.

结论:

开发的模型有效地评估了UG趋势对城市变暖的长期影响.
人为植被管理对于缓解城市变暖至关重要.
结果为开发适应气候的城市提供了至关重要的参考.

关键词:

减缓气候变化减缓气候变化冷却效应的冷却效应是什么生态恢复项目生态恢复项目城市绿化城市绿化

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