Open Green Space Development Priority Based on Distribution of air Temperature Change in Capital City of Indonesia, Jakarta

One of the main cause of environmental degradation in Jakarta is caused by quality degradation of open green space. Urban forest as a form of open green space has an important role in microclimate amelioration. Urban forest can reduce surface temperature, which have a close relation to land cover and air temperature. Urban forests as a heat absorbent reduce air temperature by transpiration. During 2001-2014 trees in Jakarta is decrease around 5.1% while built-up area is increase around 13%. That was causing surface temperature is increase around 2-4 °C, meanwhile air temperature is increase about 2-3 °C during 2001-2014. Priority of urban forest development to reduce high temperature in Jakarta not only should take a place in public area, but also in private.