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.

该项目旨在促进城市绿地在热浪和水资源稀缺限制期间的可持续利用，以维护绿地，作为城市热弹性的高效和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源消耗和死亡率的增加，以及工人生产力的损失，这给经济带来了额外的负担。开发有效的绿地以适应热浪，需要可持续的用水规划和谨慎的管理，特别是在干旱和半干旱地区，因为灌溉是拯救植物和产生降温的关键因素。在不降低降温效果的情况下，通过减少灌溉来提高用水效率是具有挑战性的。这一提议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下，在热浪下节约用水和改善热舒适性。在本项目中，将应用亏缺灌溉的管理策略，通过优化热舒适和灌溉之间的权衡来最大限度地提高所用水的生产率。由于植物的异质性、小而孤立的个体绿地以及各种小气候的存在，城市绿地的需水量估计是困难的。由于缺乏解决所有这些因素的办法，加大了灌溉用水量与实际用水需求之间的差距。该项目将使用3D微尺度模式ENVI-MET来估算蒸发和蒸腾过程中的ET，即水分损失。结果将与四个绿地的现场测量结果进行比较。将评估热浪和缺水对绿地降温和热舒适的影响。通过验证和开发基于真实环境条件的用于ET估计的ENVI-MET，这项研究将极大地促进基于自然的热浪恢复力的决策支持工具。