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IF 10.5 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Sustainable Cities and Society Pub Date : 2024-09-14 DOI:10.1016/j.scs.2024.105805

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引用次数: 0

摘要

绿色和蓝色空间对于减轻城市热岛影响至关重要，但在干旱地区却鲜有研究。在这项研究中，我们对埃及开罗和吉萨省的五种不同类型的绿色和蓝色基础设施（GBI）的月度和季节性降温进行了量化：河流、湖泊、"捕获 "的农业区、城市公园和高尔夫球场。利用 Landsat-8 土地表面温度 (LST) 图像，我们评估了每种绿色和蓝色基础设施类型在四个季节中每个季节三个重复点的 LST 变化情况。所有 GBI 类型在夏季的降温幅度最大。水体的低温层降温差异大于绿地。按降温潜能值（5 月 LST 降温）的增大排序，它们是农业区（3.3 °C）、高尔夫球场（4.3 °C）、公园（4.4 °C）、湖泊（8.2 °C）和河流（12.2 °C）。在河流和湖泊等蓝色空间，延伸到邻近缓冲区的降温效应最大。本文首次提供了干旱地区高尔夫球场和城市农业等研究较少的 GBI 类型的降温数据。它为城市规划者提供了信息支持，帮助他们在大都市地区拥抱绿色和蓝色空间，并保护它们免受城市扩张的影响。

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Seasonal environmental cooling benefits of urban green and blue spaces in arid regions

Green and blue spaces are vital for mitigating urban heat island impacts but are poorly studied in arid regions. In this study, we quantify monthly and seasonal cooling for five contrasting types of green and blue infrastructure (GBI): rivers, lakes, "captured" agricultural areas, urban parks, and golf courses in the Cairo and Giza provinces of Egypt. Using Landsat-8 images of Land Surface Temperature (LST) we assessed change in LST along bisecting transects and in circle plots for three replicates of each GBI type, in each of four seasons. Cooling was greatest in summer for all GBI types. Cooling differentials of LST were greater for water bodies than for green spaces. Ordered by increasing cooling potential (May LST cooling) they were: Agricultural areas (3.3 °C), Golf courses (4.3 °C), Parks (4.4 °C), Lakes (8.2 °C) and Rivers (12.2 °C). The cooling effects extending into adjacent buffer areas were greatest for blue spaces like rivers and lakes. This paper provides the first data for cooling by less-studied GBI types in arid regions, such as golf courses and urban agriculture. It provides information to support city planners to embrace green and blue spaces within metropolitan areas and to protect them from urban sprawl.

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来源期刊

Sustainable Cities and Society Social Sciences-Geography, Planning and Development

CiteScore

22.00

自引率

13.70%

发文量

810

审稿时长

27 days

期刊介绍： Sustainable Cities and Society (SCS) is an international journal that focuses on fundamental and applied research to promote environmentally sustainable and socially resilient cities. The journal welcomes cross-cutting, multi-disciplinary research in various areas, including: 1. Smart cities and resilient environments; 2. Alternative/clean energy sources, energy distribution, distributed energy generation, and energy demand reduction/management; 3. Monitoring and improving air quality in built environment and cities (e.g., healthy built environment and air quality management); 4. Energy efficient, low/zero carbon, and green buildings/communities; 5. Climate change mitigation and adaptation in urban environments; 6. Green infrastructure and BMPs; 7. Environmental Footprint accounting and management; 8. Urban agriculture and forestry; 9. ICT, smart grid and intelligent infrastructure; 10. Urban design/planning, regulations, legislation, certification, economics, and policy; 11. Social aspects, impacts and resiliency of cities; 12. Behavior monitoring, analysis and change within urban communities; 13. Health monitoring and improvement; 14. Nexus issues related to sustainable cities and societies; 15. Smart city governance; 16. Decision Support Systems for trade-off and uncertainty analysis for improved management of cities and society; 17. Big data, machine learning, and artificial intelligence applications and case studies; 18. Critical infrastructure protection, including security, privacy, forensics, and reliability issues of cyber-physical systems. 19. Water footprint reduction and urban water distribution, harvesting, treatment, reuse and management; 20. Waste reduction and recycling; 21. Wastewater collection, treatment and recycling; 22. Smart, clean and healthy transportation systems and infrastructure;