通过植被恢复缓解城市热岛 (UHI):采矿社区的见解
Haoxuan Yu1,2, Izni Zahidi1,2, Chow Ming Fai1,2
1Department of Civil Engineering School of Engineering Monash University Malaysia Jalan Lagoon Selatan Bandar Sunway Selangor 47500 Malaysia.
Global challenges (Hoboken, NJ)
|March 12, 2025
概括
植被恢复有效地打击城市热岛 (UHI) 效应. 增加的植被覆盖面显著降低了表面温度,特别是在受矿业影响的地区,强调了生态恢复的重要性.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 遥感 遥感 遥感 遥感
背景情况:
- 城市热岛 (UHI) 效应加剧了气候挑战,特别是在受损的采矿景观中.
- 植被恢复是缓解UHI和改善当地气候条件的关键策略.
- 评估植被覆盖的变化及其对UHI的影响对于可持续的城市发展至关重要.
研究的目的:
- 分析2000年至2020年的植被覆盖变化及其对Dexing City (中国),Qibaoshan Township (中国) 和Dartford Ebbsfleet Garden City (英国) 的UHI的影响.
- 量化增加植被覆盖和UHI缓解之间的关系.
- 展示生态恢复在城市规划中的作用.
主要方法:
- 利用卫星图像和遥感数据来追踪植被覆盖的变化 (部分植被覆盖 - FVC).
- 在选定的案例研究地点分析了UHI范围和温度变化.
- 在20年 (2000-2020年) 期间比较FVC和UHI数据.
主要成果:
- 德市保持高FVC (0.88-0.91) 的采矿后回收,减少了UHI面积. 奇博山镇增加了FVC (0.88至>0.92),UHI下降了26%.
- 达特福德通过城市绿化实现了0.71的FVC峰值.
- 增加的植被覆盖,通过蒸发,阴影和白色效应,与采矿场相比,降低了高达3°C的表面温度.
结论:
- 植被恢复是缓解城市热岛效应的高效策略.
- 将生态恢复与可持续城市规划相结合,对于气候弹性至关重要.
- 遥感为监测植被覆盖和UHI动态提供了有价值的数据.
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