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.

该项目旨在促进热浪和水资源短缺限制期间城市绿地水的可持续利用，以维持绿地作为城市抗热能力的高效且有效的基于自然的解决方案。热浪频率和强度的增加将导致冷却能耗和死亡率增加，以及工人生产力的损失，从而给经济带来额外的负担。开发有效的绿色空间来抵御热浪需要可持续的用水规划和精心管理，特别是在干旱和半干旱地区，灌溉是拯救植物和产生冷却的关键因素。通过减少灌溉而不降低冷却效果来提高用水效率具有挑战性。该提案的成功有助于在联合国可持续发展目标 3、6、11 和 13 以及欧洲绿色协议的框架内节约用水并提高热浪下的热舒适度。在该项目中，将采用赤字灌溉管理策略，通过优化热舒适性和灌溉之间的权衡，最大限度地提高用水的生产率。由于植物的异质性、小而孤立的单个绿地以及各种微气候的存在，估计城市绿地的需水量很困难。由于缺乏解决所有这些因素的方法，增加了灌溉用水与实际用水需求之间的差距。该项目将使用 3D 微尺度模型 ENVI-met 来估算 ET，即蒸发和蒸腾过程中的水损失。结果将根据四个绿地的现场测量进行评估。将估计热浪和缺水对绿地降温和热舒适度的影响。通过验证和开发基于真实环境条件的 ET 估算的 ENVI-met，这项研究将极大地改进基于自然的热浪抵御能力的决策支持工具。