Efficacy assessment of green-blue nature-based solutions against environmental heat mitigation.
Efficacy assessment of green-blue nature-based solutions against environmental heat mitigation.
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DOI：
10.1016/j.envint.2023.108187
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发表时间：
2023-09
影响因子：
11.8
通讯作者：
J. Sahani;Prashant Kumar;Sisay E. Debele
中科院分区：
文献类型：
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作者：
J. Sahani;Prashant Kumar;Sisay E. Debele
基于自然的解决方案（NBS），例如绿色（植被）和蓝色（水体）基础设施正在被推广为管理热浪风险的具有成本效益和可持续的战略，但需要长期监测证据来支持其实施。这项工作的目的是对绿色（林地和草地）和蓝色（水体）NBS 与建成区的冷却效率进行比较评估。一年多来的连续固定监测表明，国家统计局所在地日平均最高气温比建成区低2-3℃（最高可达15%）。几乎所有季节，林地的气温下降幅度最大，其次是水体和草地。 NBS 在夏季、日照高峰和热浪时段（比建成区温度低约 6°C）表现最佳。使用电动自行车进行移动监测，绿蓝NBS组合的区域显示出最高的空间降温程度，其次是水体、林地和草地区域。生成的数据库可以验证城市规模的环境模型，并协助城市规划者根据机会、需求和范围将 NBS 纳入城市住宅，与可持续发展目标 11（可持续城市和社区）和 13（气候行动）保持一致。
Nature-based solutions (NBS) such as green (vegetation) and blue (waterbodies) infrastructure are being promoted as cost-effective and sustainable strategies for managing the heatwaves risks, but long-term monitoring evidence is needed to support their implementation. This work aims to conduct a comparative assessment of the cooling efficiency of green (woodland and grassland) and blue (waterbody) NBS in contrast to a built-up area. Over a year of continuous fixed monitoring showed that the average daily maximum temperatures at NBS locations were 2–3 °C (up-to 15%) lower than the built-up area. Woodland showed the maximum temperature reduction in almost all seasons, followed by waterbody and grassland. NBS performed the best during the summers, peak sunshine, and heatwave hours (up to ∼ 6 °C cooler than built-up area). Using an e-bike for mobile monitoring, the areas where green–blue NBS were combined showed the highest spatial cooling extent, followed by waterbody, woodland, and grassland areas. The database generated can validate city-scale environmental models and assist city planners to incorporate NBS into urban dwellings based on the opportunity, need and scope, aligning with Sustainable Development Goals 11 (sustainable cities and communities) and 13 (climate action).