Studying on drop temperature effect, add humidityeffect, balance of carbon and oxygen effect, absorbing dirt effect, killing germ effect, decreasing noise effect and air anion effect.
分析了绿地系统的降温效应、增湿效应，碳氧平衡效应，吸尘、杀菌、减噪效应和空气负离子效应。
2
Replacing black asphalt with vegetation raises rooftop albedo, and evapotranspiration can add humidity to an urban atmosphere; both help mitigate heat-island effect.
用植物代替黑沥青能增加屋顶漫反射系数，蒸散能增加城市大气层的湿度；二者都有助于缓和热导效应。
3
As the humidity rose, the water vapor would add its greenhouse effect, and the temperature might soar.