中国城市林业2025，Vol.23Issue(1)：1-10,10.DOI:10.12169/zgcsly.2025.01.04.0001
城市公共空间绿视率对多时态热舒适度的影响
Influences of Green View Index of Urban Public Space on Multi-Temporal Thermal Comfort
摘要
Abstract
[Objective]The study is to provide a new perspective for optimizing the urban thermal environment and residential quality.[Method]The waterfront sections of Jiang'an District in Wuhan are taken as a case study to calculate green view index(GVI)and physiologically equivalent temperature(PET)by integrating street-view imagery and remote sensing climate data with deep learning and ENVI-met simulations to examine their spatiotemporal characteristics and discuss the GVI's impact on thermal comfort.[Result]1)The distribution of GVI in the waterfront sections of Jiang'an District varies due to regional characteristics;2)At 7∶00-15∶00,the PET presents varied rates across urban spaces of different kinds,i.e.,historical district interiors>street areas>waterfront parks;3)The significant negative correlation between GVI and PET strengthens from morning to noon,peaking at 12∶00 before weakening;4)GVI has a diminishing marginal effect on PET.The GVI,when in the range of 43.9%-47.3%,has the most substantial subduing effect on PET,and the effect will reduce beyond the scope;and 5)GVI significantly enhances thermal environment stability.High GVI reduces PET's diurnal variation,leading to a more stable thermal environment with smaller temperature fluctuations.This not only improves thermal comfort,but also increases urban climate stability.[Conclusion]Urban spatial typology shapes thermal dynamics,with GVI negatively correlated with PET.Its cooling effect peaks around 12∶00 and follows a marginal diminishing pattern.The optimal GVI configuration is the key to improving thermal comfort.Future studies should explore GVI's interactions with vegetation types and spatial configurations under varying climates.关键词
多时态热舒适度/绿视率/语义分割/微气候模拟/边际递减效应Key words
multi-temporal thermal comfort/green view index(GVI)/semantic segmentation/microclimate simulation/diminishing marginal effect引用本文复制引用
毛志睿,李雨航,陈笑葵..城市公共空间绿视率对多时态热舒适度的影响[J].中国城市林业,2025,23(1):1-10,10.基金项目
国家自然科学基金项目(52168004) （52168004）
