SUGS - Sustainable water management of urban green spaces for resilience to heatwaves

SUGS - 城市绿地的可持续水管理以抵御热浪

• 批准号: EP/Y014286/1
• 负责人: Paria Shojaei
• 金额: $ 25.55万
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY014286%2F1
• 关键词: SUGS; Sustainable; water; management; urban

This project aims to promote the sustainable use of water for urban green spaces during heatwaves and water scarcity restrictions to maintain green spaces as efficient and effective nature-based solutions for urban heat resilience. Increasing heatwave frequency and intensity will result in increased cooling energy consumption and mortality rates, and loss of worker productivity, which impose an additional burden on the economy. The development of effective green spaces for heatwave resilience requires sustainable water use planning and careful management, especially in arid and semiarid regions where irrigation is a key factor to save plants and produce cooling. Improving water efficiency by reducing irrigation without decreasing cooling effects is challenging. The success of this proposal contributes to water conservation and improved thermal comfort under heatwaves in the framework of UN SDG 3, 6, 11 and 13, and European Green Deal. In this project, the management strategy of deficit irrigation will be applied to maximise the productivity of applied water by optimising the trade-off between thermal comfort and irrigation. Estimation of water requirement of urban green spaces is difficult because of the heterogeneous nature of plants, small and isolated individual green spaces and the presence of various microclimates. The lack of approaches addressing all these factors has increased the gap between the irrigation water application and real water demand. This project will use the 3D micro-scale model ENVI-met to estimate ET, water loss from the processes of evaporation and transpiration. The results will be evaluated against on-site measurements in four green spaces. The effects of heatwave and water shortage on cooling of green spaces and thermal comfort will be estimated. By validating and developing ENVI-met for ET estimations based on real environmental conditions, this study will greatly advance decision support tools for nature-based resilience to heatwaves.

该项目旨在促进在热浪和缺水限制期间，在城市绿色空间中可持续使用水，以将绿色空间作为城市热弹性的高效和有效的基于自然的解决方案。增加的热波频率和强度将导致冷却能源消耗和死亡率增加以及工人生产力的损失，从而对经济造成了额外的负担。开发有效的绿色空间以进行热浪弹性需要可持续的用水计划和仔细的管理，尤其是在干旱和半干旱地区，灌溉是节省植物并产生冷却的关键因素。通过降低灌溉而不减少冷却效果来提高水效率是具有挑战性的。该提案的成功有助于节水，并在UN SDG 3、6、11和13和欧洲绿色交易的框架内的热浪下改善了热舒适度。在该项目中，将采用赤字灌溉的管理策略，以通过优化热舒适和灌溉之间的权衡，以最大程度地提高所施加水的生产率。由于植物的异质性质，小而孤立的单个绿色空间以及各种微气候的存在，因此很难估计城市绿色空间的水需求。缺乏解决所有这些因素的方法增加了灌溉用水和实际水需求之间的差距。该项目将使用3D微尺度模型Envi-Met来估计ET，即蒸发和蒸腾过程的水损失。结果将根据四个绿色空间的现场测量进行评估。将估计热浪和水短缺对绿色空间和热舒适度的冷却的影响。通过验证和开发基于实际环境条件的ET估算的ENVI-MET，这项研究将大大提高基于自然的弹性对热浪的弹性的决策支持工具。