Priority Areas for Developing Green Infrastructure in Semi-arid Cities: A Case Study of Tehran

IF 1.3 Q4 ENVIRONMENTAL STUDIES Environment and Urbanization ASIA Pub Date : 2021-03-01 DOI:10.1177/0975425321990326
Farimah Sadat Jamali, S. Khaledi, M. Razavian
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引用次数: 1

Abstract

Urban green infrastructure (GI) approach supports building resilience, mitigating greenhouse gases emissions and adapting to the impacts of climate change. However, the development and maintenance of GI in semi-arid cities can be hindered by limitations such as available water resources. In this article, we study priority areas for GI development schemes at the neighbourhood scale through a seasonal vulnerability framework with the case study of two urban districts in the semi-arid city of Tehran, Iran. Heat mitigation and stormwater runoff control are considered as the main objectives of GI development. The results show that priority areas have high levels of land surface temperature, impervious surfaces and population density, with a low proportion of vegetation land cover. The necessary GI services vary in different local climate zones (LCZ) during the year. Although heat mitigation is required in both compact and open LCZs, the runoff control service of GI is also needed for neighbourhoods with compact midrise settings. To promote sustainability at the neighbourhood scale, the findings of the study can be used for initiating nature-based solutions and GI development projects.
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半干旱城市发展绿色基础设施的优先领域:以德黑兰为例
城市绿色基础设施(GI)方法支持建设抵御能力、减少温室气体排放和适应气候变化的影响。然而,半干旱城市GI的开发和维护可能会受到可用水资源等限制的阻碍。在这篇文章中,我们通过季节脆弱性框架,以伊朗半干旱城市德黑兰的两个城区为例,研究了社区规模的GI发展计划的优先领域。热量缓解和雨水径流控制被认为是GI开发的主要目标。结果表明,优先区域地表温度高,地表不透水,人口密度高,植被覆盖率低。一年中,当地不同气候区(LCZ)的必要GI服务各不相同。尽管紧凑型和开放型LCZ都需要热量缓解,但对于具有紧凑型中高层环境的街区,也需要GI的径流控制服务。为了促进社区规模的可持续性,研究结果可用于启动基于自然的解决方案和GI开发项目。
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来源期刊
Environment and Urbanization ASIA
Environment and Urbanization ASIA ENVIRONMENTAL STUDIES-
CiteScore
2.70
自引率
0.00%
发文量
24
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