Urban vegetation is a nature-based solution for cooling cities. Under global warming and urban population growth, it is essential to optimize urban vegetation configuration in the urban area to bring maximum cooling benefit. This paper reviews 85 optimized urban vegetation configuration studies published from 2010 to 2020 to provide an insight into the most effective vegetation configuration for urban heat mitigation. Patterns and preferences in methods and the optimized greenery configurations are comprehensively analyzed. The results indicate that size, quantity, and layout of urban green space and the physiological characteristics and spatial arrangement of urban vegetation significantly influence their cooling effect. Additionally, two other research gaps were identified. First, more research needs to be done in southern hemisphere cities experiencing rapid urbanization and severe impacts of extreme weather. Second, a comprehensive method for quantifying interactions and cumulative effects of natural and artificial factors in the urban environment is required. Future study needs a holistic understanding of the interactive effects of vegetation spatial distribution on urban environment and climate for a more accurate analysis of optimal cooling greening layouts in large urban areas at multi-scales.

城市植被是一种基于自然的城市降温解决方案。在全球变暖和城市人口增长的情况下，优化市区植被配置以带来最大的降温效益至关重要。本文回顾了 2010 年至 2020 年发表的 85 项优化城市植被配置研究，以深入了解缓解城市热量的最有效植被配置。综合分析方法的模式和偏好以及优化的绿化配置。结果表明，城市绿地的大小、数量和布局以及城市植被的生理特征和空间排列对其降温效果有显着影响。此外，还发现了另外两个研究空白。第一的，需要在经历快速城市化和极端天气严重影响的南半球城市进行更多研究。其次，需要一种量化城市环境中自然和人为因素的相互作用和累积效应的综合方法。未来的研究需要全面了解植被空间分布对城市环境和气候的交互影响，以更准确地分析多尺度大城市区域的最佳冷却绿化布局。