Local climate changes are exacerbated in urban areas due to the rapid urbanization, which will accordingly worsen the urban thermal environment and cause series of eco鄄environment problems. Urban green spaces are multifunctional and can reduce temperature and mitigate the urban heat island effect. Previous studies have found that urban microclimate, vegetation types and the characteristics of green patches are all contributed to the green spaces cooling effects. Quantifying the relationships between these factors and green space cooling effects will help to guide the urban green space planning and design, and accordingly help to mitigate the urban thermal effect. In this paper, five woodlands were selected as the research spots, which have similar vegetation structure, and another spot which was mainly covered by cement was selected as the reference point. All of the six observation sites are in the Purple Mountain along the direction of Lingyuan Road to Dr. Sun Yat鄄sen忆s Mausoleum. The HOBO meteorological stations at fixed observational spots were used to get meteorological factors such as air temperature, relative humidity and wind speed. The LAI鄄2200 and fisheye photograph were used to capture the Leaf area index and sky view factor respectively, and the handheld GPS navigation was used to get the elevation of each study spots. The relationships between temperature reduction and related factors were analyzed using correlation
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