Effects of Evapotranspiration on Mitigation of Urban Temperature by Vegetation and Urban Agriculture

Urban Farm DB summary

A literature review examined the effects of evapotranspiration (ET) from vegetation and urban agriculture on urban temperatures. The review indicated that vegetation and urban agricultural ET can reduce urban temperatures by 0.5 to 4.0°C. Green roofs and water bodies also effectively reduce urban temperatures, with cooling effects on ambient temperature ranging from 0.24-4.0°C and on roof surface temperature from 0.8-60.0°C. Water bodies can be 2-6°C cooler than surrounding built environments, and a 16 m² water body can cool 2,826 m³ of nearby space by 1°C.