Mitigation effect of urban heat island from forest canopy structure of urban forest

Abstract

Urban forest is expected to mitigate heat island. Conventional study only focuses on tree height effect for the mitigation, does not count on forest canopy structure. In this study, the different forest canopy structure is compared with the surface temperature data. As a result, canopy thickness prevented from increasing daytime surface temperature and decreasing nighttime surface temperature to moderate the temperature change between day and night. Therefore, the development of forest canopy structure helps to improve the mitigation effect of heat island in urban forest.